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      1. 首頁»HTML/CSS»css3動畫整理

        css3動畫整理

        來源:segmentfault 發布時間:2018-02-09 閱讀次數:

          趁逢年味,整理一些小東西,希望大家能夠喜歡;

          列舉以下7個小demo來拋磚引玉

         1、多彩圓環

          利用 CSS3 的 background-image 和 border-radius 組合成的動畫

          直接上代碼:

          html

            <div id="item1">
                <div class="colorcircle shadow">
                    <div></div>
                    <div></div>
                    <div></div>
                    <div></div>
                    <div></div>
                    <div></div>
                    <div class="centerWrap"></div>
                </div>
                <div id="colorCenter">
                    do something
                </div>
            </div>

          CSS

         
            #item1 {
                margin: 2em;
                height: 240px;
                position: relative;
                overflow: hidden;
            }
            .colorcircle {
                width: 240px;
                height: 240px;
                margin: auto;
                position: relative;
                overflow: hidden;
                animation: colorcircleAni 3s linear infinite;
            }
        
            @keyframes colorcircleAni {
                0% {
                    transform: rotate(0deg);
                }
                100% {
                    transform: rotate(360deg);
                }
            }
        
            .colorcircle > div.centerWrap {
                width: 100%;
                height: 100%;
                border-radius: 120px;
                box-shadow: 0 0 0 50px #fff;
                box-shadow: inset 0 0 8px rgba(0, 0, 0, 0.4), 0 0 0 50px #fff;
            }
            .colorcircle > div.centerWrap:before {
                content: "";
                position: absolute;
                display: block;
                width: 84%;
                height: 84%;
                top: 8%;
                left: 8%;
                border-radius: 120px;
                background: #fff;
                box-shadow: 0 0 8px rgba(0, 0, 0, 0.4);
            }
            .colorcircle > div {
                position: absolute;
                width: 50%;
                height: 50%;
            }
            .colorcircle > div:first-child,
            .colorcircle > div:nth-child(4) {
                left: 50%;
                width: 57.74%;
                margin-left: -28.87%;
            }
            .colorcircle > div:first-child {
                background-color: #ff0000;
                background-image: linear-gradient(90deg, #ff0000 12%, #ffff00 88%);
            }
            .colorcircle > div:nth-child(2) {
                left: 50%;
                transform-origin: bottom;
                transform: skewX(150deg);
                background-color: #ffff00;
                background-image: linear-gradient(150deg, #ffff00 12%, #00ff00 88%);
            }
            .colorcircle > div:nth-child(3) {
                transform-origin: bottom;
                transform: skewX(30deg);
                background-color: #ff00ff;
                background-image: linear-gradient(30deg, #ff00ff 12%, #ff0000 88%);
            }
            .colorcircle > div:nth-child(4) {
                top: 50%;
                background-color: #0000ff;
                background-image: linear-gradient(90deg, #0000ff 12%, #00ffff 88%);
            }
            .colorcircle > div:nth-child(5) {
                left: 50%;
                top: 50%;
                transform-origin: top;
                transform: skewX(30deg);
                background-color: #00ffff;
                background-image: linear-gradient(30deg, #00ffff 12%, #00ff00 88%);
            }
            .colorcircle > div:nth-child(6) {
                top: 50%;
                transform-origin: top;
                transform: skewX(150deg);
                background-color: #ff00ff;
                background-image: linear-gradient(150deg, #ff00ff 12%, #0000ff 88%);
            }
            #colorCenter {
                color: #888888;
                letter-spacing: 2px;
                font-size: 90%;
                line-height: 1.8em;
                text-align: center;
                position: absolute;
                left: 50%;
                top: 50%;
                transform: translate3d(-50%,-50%,0);
            }

          demo 地址 http://wwlin.cn/cssAnima.html (包含以下所以demo)

         2、sun-earth-moon

          有同事說這是雞蛋餅......

          利用CSS background-image、 box-shadow、 linear-gradient 等;

          html

         
            <div id="item2">
                <div class="title">sun-earth-moon</div>
                <div class="pathway">
                    <div class="earth">
                        <div class="moon"></div>
                    </div>
                </div>
                <div class="sun"></div>
            </div>
         
            

          CSS

             
             #item2 {
                width: 270px;
                height: 240px;
                margin: 100px auto 200px;
                position: relative;
            }
        
            #item2  .title {
                height: 120px;
                color: #888888;
                letter-spacing: 2px;
                text-align: center;
                line-height: 80px;
            }
        
            #item2 .pathway {
                width: 270px;
                height: 240px;
                border-radius: 50%;
                border: 1px solid rgba(0, 0, 0, 0.3);
                animation: pathwayAni 10s linear infinite;
            }  
        
            @keyframes pathwayAni {
                0% {
                    transform:  rotate(0deg);
                }
                100% {
                    transform: rotate(360deg);
                }
            }
        
            @keyframes pathwayAni2 {
                0% {
                    perspective:800;
                    transform: translate3d(-50% ,-50%,0) rotate( 0deg);
                }
                100% {
                    perspective:800;
                    transform: translate3d(-50% ,-50%,0) rotate(360deg);
                }
            }
        
            #item2 .pathway  .earth{
                content: "";
                width: 40px;
                height: 40px;
                background-image: linear-gradient(150deg, #00ff00 12%, #0000ff 88%);
                border-radius: 50%;
                position: absolute;
                top: 100px;
                left: -20px;
                box-shadow: 0 0 5px rgba(0, 0, 0, 0.4);
                animation: pathwayAni 10s linear infinite;
            } 
            #item2 .pathway  .earth .moon {
                width: 15px;
                height: 15px;
                background-image: linear-gradient(150deg, #0000ff 12%,#ffd900  88%);
                border-radius: 50%;
                position: absolute;
                box-shadow: 0 0 3px rgba(0, 0, 0, 0.4);
                top: 13px;
                left: -25px;
                animation: pathwayAni 10s linear infinite;
            }
        
            #item2 .sun {
                width: 80px;
                height: 80px;
                background-image:  linear-gradient(90deg, #ff0000 12%, #ffff00 88%);
                box-shadow: 0  0  20px rgba(245, 84, 84 , 0.7);
                border-radius: 50%;
                position: absolute;
                top: 50%;
                left: 50%;
                margin-top: 120px;
                animation: pathwayAni2 30s linear infinite;
            }
        

          3、snail

          我將這個動畫發給女同事,然而被罵!!!

          利用一張圖片,兩個盒子拼湊效果;

          html

         <div id="item3">
            <div class="title">snail (one picture)</div>
            <div class="snailOpction">
                <div class="snail_box1 active fl">
                    <img class="snail_1" src="http://wwlin.cn/images/77.png" alt="">
                </div>
                <div class="snail_box2 active fl">
                    <img class="snail_2" src="http://wwlin.cn/images/77.png" alt="">
                </div>
            </div>
        </div>
        
        

          CSS

         #item3 {
                height: 300px;
                width: 240px;
                position: relative;
                margin: 0 auto;
            }
        
            #item3 .title {
                height: 120px;
                color: #888888;
                letter-spacing: 2px;
                text-align: center;
                line-height: 80px;
            }
            
            .snailOpction {
                position: absolute;
                left: 0;
                top: 100px;
                z-index: 19;
                animation: snailOpction 150s linear infinite;
                -webkit-animation: snailOpction 150s linear infinite;
            }
        
            @keyframes  snailOpction {
                0% {
                    transform: translateX(-50%);
                }
                100% {
                    transform: translateX(340px);
                }
            }
            @-webkit-keyframes  snailOpction {
                0% {
                    -webkit-transform: translateX(-50%);
                }
                100% {
                    -webkit-transform: translateX(340px);
                }
            }
        
        
            .snail_box1 {
                width: 65px;
                height: 64px;
                overflow: hidden;
                position: relative;
                z-index: 22;
            }
            .snail_box2 {
                width: 55px;
                height: 64px;
                overflow: hidden;
                position: relative;
                z-index: 19;
            }
            .snail_box1.active {
                animation: snail_box1 3S linear infinite;
                -webkit-animation: snail_box1 3S linear infinite;
            }
        
            @keyframes snail_box1 {
                0% {
                    transform: translate3d(0,0,0);
                }
                50% {
                    transform: translate3d(3px,-5px,0);
                }
                100% {
                    transform: translate3d(0,0,0);
                }
            }
            @-webkit-keyframes snail_box1 {
                0% {
                    -webkit-transform: translate3d(0,0,0);
                }
                50% {
                    -webkit-transform: translate3d(3px,-5px,0);
                }
                100% {
                    -webkit-transform: translate3d(0,0,0);
                }
            }
        
            .snail_box2.active {
                animation: snail_box2 3S linear infinite;
                -webkit-animation: snail_box2 3S linear infinite;
            }
        
            @keyframes snail_box2 {
                0% {
                    transform: translate3d(0,0,0);
                }
                50% {
                    transform: translate3d(-5px,-3px,0);
                }
                100% {
                    transform: translate3d(0,0,0);
                }
            }
            @-webkit-keyframes snail_box2 {
                0% {
                    -webkit-transform: translate3d(0,0,0);
                }
                50% {
                    -webkit-transform: translate3d(-5px,-3px,0);
                }
                100% {
                    -webkit-transform: translate3d(0,0,0);
                }
            }
        
            .snail_1 {
                width: 120px;
                height: 64px;
                position: absolute;
                left: 0;
                top: 0;
            }
        
            .snail_2 {
                width: 120px;
                height: 64px;
                position: absolute;
                right: 0;
                top: 0;
            }
        
            .fl {
                float: left;
            }
            .fr {
                float: right;
            }

          4、border-radius

          利用 CSS 的 border-radius

          html

            <div id="item4">
                <div class="title">border-radius</div>
                <div class="menuBtn">
                    <div class="menuBtn_2">*</div>
                    <ul class="menuBtn_3">
                        <li></li>
                        <li></li>
                        <li></li>
                    </ul>
                </div>
                <ul class="menu">
                    <li>1</li>
                    <li>2</li>
                    <li>3</li>
                    <li>4</li>
                    <li>5</li>
                </ul>
            </div>
            
        

          CSS

             #item4 {
                height: 300px;
                width: 64px;
                margin:  0 auto 100px;
            }
        
            #item4 .title {
                width: 150px;
                height: 120px;
                color: #888888;
                letter-spacing: 2px;
                text-align: center;
                line-height: 80px;
                transform: translate(-50%);
            }
            
            #item4  .menuBtn {
                width: 60px;
                height: 60px;
                border: 2px solid #333333;
                border-radius: 50%;
                position: relative;
                cursor: pointer;
            }
            
            #item4  .menuBtn .menuBtn_2 {
                width: 16px;
                height: 16px;
                color: #333333;
                font-size: 18px;
                text-align: center;
                line-height: 16px;
                border-left: 2px solid #333333;
                border-right: 2px solid #333333;
                position: absolute;
                top: 50%;
                left: 50%;
                transform: translate3d(-50%,-50%,0);
            }
            
            #item4  .menuBtn .menuBtn_2::before {
                content: "";
                width: 16px;
                height: 8px;
                position: absolute;
                top: -8px;
                left: -2px;
                border-top: 2px solid #333333;
                border-left: 2px solid #333333;
                border-right: 2px solid #333333;
                border-radius:8px 8px 0 0;
            }
            
            #item4  .menuBtn .menuBtn_2::after {
                content: "";
                width: 16px;
                height: 8px;
                position: absolute;
                top: 16px;
                left: -2px;
                border-bottom: 2px solid #333333;
                border-left: 2px solid #333333;
                border-right: 2px solid #333333;
                border-radius:0 0 8px 8px;
            }
            
            .menuBtn_3 {
                width: 60px;
                height: 40px;
                position: absolute;
                top: 60px;
                padding-top: 10px; 
                animation: topToBottom 2s linear infinite;
            }
            
            .menuBtn_3 li {
                width: 4px;
                height: 4px;
                border: 1px solid #333333;
                border-radius: 50%;
                margin-bottom: 20px;
                transform: translateX(26px);
                opacity: 0;
            }
            
            .menuBtn_3 li:nth-child(1) {
                animation: menuBtn_3Li 2s linear infinite;
                -webkit-animation: menuBtn_3Li 2s linear infinite;
            }
            .menuBtn_3 li:nth-child(2) {
                animation: menuBtn_3Li 2s linear 0.5s infinite;
                -webkit-animation: menuBtn_3Li 2s linear 0.5s infinite;
            }
            .menuBtn_3 li:nth-child(3) {
                animation: menuBtn_3Li 2s linear 1s infinite;
                -webkit-animation: menuBtn_3Li 2s linear 1s infinite;
            }
            
            @keyframes menuBtn_3Li {
                0% {
                    transform: translateX(26px) scale(1);
                    box-shadow: 0 0 0 #333333;  
                    opacity: 0;
                }
                50% {
                    transform: translateX(26px) scale(1.3);
                    box-shadow: 0 0 3px #333333;  
                    opacity: 1;
                }
                100% {
                    transform:translateX(26px) scale(1.6);
                    box-shadow: 0 0 5px #333333;  
                    opacity: 0;
                }
            }
            @-webkit-keyframes menuBtn_3Li {
                0% {
                    -webkit-transform: translateX(26px) scale(1);
                    -webkit-box-shadow: 0 0 0 #333333;  
                    opacity: 0;
                }
                50% {
                    -webkit-transform: translateX(26px) scale(1.3);
                    -webkit-box-shadow: 0 0 3px #333333;  
                    opacity: 1;
                }
                100% {
                    -webkit-transform:translateX(26px) scale(1.6);
                    -webkit-box-shadow: 0 0 5px #333333;  
                    opacity: 0;
                }
            }
            
            @keyframes topToBottom{
                0% {
                    transform: translateY(0) scale(1);
                }
                100%{
                    transform: translateY(80%) scale(1.2);
                }
            }
            @-webkit-keyframes topToBottom{
                0% {
                    -webkit-transform: translateY(0) scale(1);
                }
                100%{
                    -webkit-transform: translateY(80%) scale(1.2);
                }
            }
            
            #item4 .menu {
                color: #333333;
                font-size: 16px;
                line-height: 30px;
                position: absolute;
                top: 90px;
                z-index: 29;
                display: none;
            }
            

          5、flower

          利用 css radial-gradient 等;

          html

        <div id="item5">
            <div class="title">radial-gradient</div>
            <ul>
                <li class="leaf1"></li>
                <li class="leaf2"></li>
                <li class="leaf3"></li>
                <li class="leaf4"></li>
                <li class="leaf5"></li>
                <li class="leaf6"></li>
                <li class="leaf7"></li>
                <li class="leaf8"></li>
                <li class="leaf9"></li>
            </ul>
        </div>

          CSS

        #item5 {
                width: 400px;
                height: 600px;
                margin: 0 auto 100px;
                position: relative;
            }
        
            #item5 .leaf1,
            #item5 .leaf2,
            #item5 .leaf3,
            #item5 .leaf4,
            #item5 .leaf5,
            #item5 .leaf6,
            #item5 .leaf7,
            #item5 .leaf8,
            #item5 .leaf9 {
                width: 50px;
                height: 100px;
                border-radius: 50% 50% 45% 45% / 60% 60% 40% 40%;
                position: absolute;
                top: 50px;
                left: 170px;
                transform-origin: 50% 145%;
                -webkit-transform-origin: 50% 145%;
            }
        
            #item5 .title {
                color: #888888;
                letter-spacing: 2px;
                text-align: center;
                line-height: 40px;
            }
        
            #item5 .leaf1 {
                background-image:radial-gradient( rgba(66, 230, 139, 1),rgba(124, 187, 152, 0.6));
                border: 1px solid rgba(116, 233, 167, 0.8);
                animation: leafAni 2.25s linear 2s infinite;
                -webkit-animation: leafAni 2.25s linear 2s infinite;
            }
            #item5 .leaf2 {
                background-image:radial-gradient( rgba(63, 187, 179, 1),rgba(83, 156, 151, 0.6));
                border: 1px solid rgba(90, 194, 187, 0.8);
                animation: leafAni 2.25s linear 1.75s infinite;
                -webkit-animation: leafAni 2.25s linear 1.75s infinite;
            }
        
            #item5 .leaf3 {
                background-image:radial-gradient( rgba(60, 213, 49,1),rgba(60, 213, 49, 0.6));
                border: 1px solid rgba(60, 213, 49,0.8);
                animation: leafAni 2.25s linear 1.5s infinite;
                -webkit-animation: leafAni 2.25s linear 1.5s infinite;
            }
            #item5 .leaf4 {
                background-image:radial-gradient( rgba(191,181,29,1),rgba(191,181,29, 0.6));
                border: 1px solid rgba(191,181,29,0.8);
                animation: leafAni 2.25s linear 1.25s infinite;
                -webkit-animation: leafAni 2.25s linear 1.25s infinite;
            }
            #item5 .leaf5 {
                background-image:radial-gradient( rgba(196,125,20,1),rgba(196,125,20, 0.6));
                border: 1px solid rgba(196,125,20,0.8);
                animation: leafAni 2.25s linear 1s infinite;
                -webkit-animation: leafAni 2.25s linear 1s infinite;
            }
            #item5 .leaf6 {
                background-image:radial-gradient( rgba(231,98,40,1),rgba(231,98,40, 0.8));
                border: 1px solid rgba(231,98,40,0.8);
                animation: leafAni 2.25s linear 0.75s infinite;
                -webkit-animation: leafAni 2.25s linear 0.75s infinite;
            }
            #item5 .leaf7 {
                background-image:radial-gradient( rgba(249,11,55,1),rgba(249,11,55, 0.8));
                border: 1px solid rgba(249,11,55,0.8);
                animation: leafAni 2.25s linear 0.5s infinite;
                -webkit-animation: leafAni 2.25s linear 0.5s infinite;
            }
        
            #item5 .leaf8 {
                background-image:radial-gradient( rgba(241,0,145,1),rgba(241,0,145,0.6));
                border: 1px solid rgba(241,0,145,0.8);
                animation: leafAni 2.25s linear 0.25s infinite;
                -webkit-animation: leafAni 2.25s linear 0.25s infinite;
            }
        
            #item5 .leaf9 {
                background-image:radial-gradient( rgba(151,11,84,1),rgba(151,11,84,0.6));
                border: 1px solid rgba(151,11,84,0.8);
                animation: leafAni 2.25s linear infinite;
                -webkit-animation: leafAni 2.25s linear infinite;
            }
        
            @keyframes leafAni {
                0% {
                    transform: rotate(0) scale(1);
                }
                25% {
                    transform:rotate(-90deg) scale(1.1);
                }
                50% {
                    transform:  rotate(-180deg) scale(1.2);
                }
                75% {
                    transform: rotate(-270deg) scale(1.1);
                }
                100% {
                    transform: rotate(-360deg) scale(1);
                }
            }
            @-webkit-keyframes leafAni {
                0% {
                    -webkit-transform: rotate(0) scale(1);
                }
                25% {
                    -webkit-transform:rotate(-90deg) scale(1.1);
                }
                50% {
                    -webkit-transform:  rotate(-180deg) scale(1.2);
                }
                75% {
                    -webkit-transform: rotate(-270deg) scale(1.1);
                }
                100% {
                    -webkit-transform: rotate(-360deg) scale(1);
                }
            }

          6、3D 照片盒子

          利用CSS preserve-3d、rotate等;

          html

        <div id="item6">
                <div class="title">preserve-3d</div>
                <div class="d3box">
                    <div class="d3Img1"><img src="http://wwlin.cn/images/boxImg1.png" alt=""></div>
                    <div class="d3Img2"><img src="http://wwlin.cn/images/boxImg2.png" alt=""></div>
                    <div class="d3Img3"><img src="http://wwlin.cn/images/boxImg3.png" alt=""></div>
                    <div class="d3Img4"><img src="http://wwlin.cn/images/boxImg4.png" alt=""></div>
                    <div class="d3Img5"><img src="http://wwlin.cn/images/boxImg5.png" alt=""></div>
                    <div class="d3Img6"><img src="http://wwlin.cn/images/boxImg6.png" alt=""></div>
                    <div class="d3Img11"><img src="http://wwlin.cn/images/boxImg7.png" alt=""></div>
                    <div class="d3Img12"><img src="http://wwlin.cn/images/boxImg8.png" alt=""></div>
                    <div class="d3Img13"><img src="http://wwlin.cn/images/boxImg9.png" alt=""></div>
                    <div class="d3Img14"><img src="http://wwlin.cn/images/boxImg10.png" alt=""></div>
                    <div class="d3Img15"><img src="http://wwlin.cn/images/boxImg1.png" alt=""></div>
                    <div class="d3Img16"><img src="http://wwlin.cn/images/boxImg2.png" alt=""></div>
                </div>
            </div>

          CSS

            
            #item6 {
                margin: 100px auto;
            }
            #item6 .title {
                color: #888888;
                letter-spacing: 2px;
                text-align: center;
                line-height: 40px;
            }
        
            #item6 .d3box{
                width: 600px;
                height: 600px;
                margin: 0 auto;
                position: relative;
                transform-style: preserve-3d;
                animation: d3boxAni 20s linear infinite;
                -webkit-animation: d3boxAni 20s linear infinite;
            }
        
            @keyframes  d3boxAni{
                0% {
                    transform: rotateX(0deg) rotateY(0deg);
                }
                100% {
                    transform: rotateX(360deg) rotateY(360deg);
                }
            }
            @-webkit-keyframes  d3boxAni{
                0% {
                    -webkit-transform: rotateX(0deg) rotateY(0deg);
                }
                100% {
                    -webkit-transform: rotateX(360deg) rotateY(360deg);
                }
            }
        
            #item6 .d3box .d3Img1,
            #item6 .d3box .d3Img2,
            #item6 .d3box .d3Img3,
            #item6 .d3box .d3Img4,
            #item6 .d3box .d3Img5,
            #item6 .d3box .d3Img6{
                position: absolute;
                width: 200px;
                height: 200px;
                transition: all .4s;
                opacity: 0.7;
            }
            #item6 .d3box .d3Img11,
            #item6 .d3box .d3Img12,
            #item6 .d3box .d3Img13,
            #item6 .d3box .d3Img14,
            #item6 .d3box .d3Img15,
            #item6 .d3box .d3Img16{
                display: bloack;
                width: 100px;
                height: 100px;
                position: absolute;
                top: 50px;
                left: 50px;
            }
            #item6 .d3box img {
                width: 100%;
                height: 100%;
            }
        
            #item6 .d3box .d3Img1 {
                transform: rotateY(0deg) translateZ(100px);
            }
        
            #item6 .d3box .d3Img2 {
                transform: translateZ(-100px) rotateY(180deg);
            }
            #item6 .d3box .d3Img3 {
                transform: rotateY(90deg) translateZ(100px);
            }
            #item6 .d3box .d3Img4 {
                transform: rotateY(-90deg) translateZ(100px);
            }
            #item6 .d3box .d3Img5 {
                transform: rotateX(90deg) translateZ(100px);
            }
            #item6 .d3box .d3Img6 {
                transform: rotateX(-90deg) translateZ(100px);
            }
        
            #item6 .d3box:hover .d3Img1 {
                transform: rotateY(0deg) translateZ(200px);
            }
            #item6 .d3box:hover .d3Img2 {
                transform: translateZ(-200px) rotateY(180deg);
            }
            #item6 .d3box:hover .d3Img3 {
                transform: rotateY(90deg) translateZ(200px);
            }
            #item6 .d3box:hover .d3Img4 {
                transform: rotateY(-90deg) translateZ(200px);
            }
            #item6 .d3box:hover .d3Img5 {
                transform: rotateX(90deg) translateZ(200px);
            }
            #item6 .d3box:hover .d3Img6 {
                transform: rotateX(-90deg) translateZ(200px);
            }
        
        
            #item6 .d3box .d3Img11 {
                transform: rotateY(0deg) translateZ(50px);
            }
            #item6 .d3box .d3Img12 {
                transform: translateZ(-50px) rotateY(180deg);
            }
            #item6 .d3box .d3Img13 {
                transform: rotateY(90deg) translateZ(50px);
            }
            #item6 .d3box .d3Img14 {
                transform: rotateY(-90deg) translateZ(50px);
            }
            #item6 .d3box .d3Img15 {
                transform: rotateX(90deg) translateZ(50px);
            }
            #item6 .d3box .d3Img16 {
                transform: rotateX(-90deg) translateZ(50px);
            }    
        

          7、文字多樣效果

          利用:CSS text-shadow

          html

        <div id="item7">
            <div class="title">text-shadow</div>
            <div class="content1">“離開就是離開,分手就是分手,</div>
            <div class="content2">錯對沒有意義,不再合適的兩人,</div>
            <div class="content3">與其耗盡對方養分,不如坦然聚散,各自相安”</div>
        </div>

          CSS

        #item7 {
                width: 400px;
                color: #fff;
                letter-spacing: 2px;
                text-align: center;
                line-height: 60px;
                font-weight: 700px;
                margin:  100px auto 200px;
            }
            #item7 .title{
                color: #888888;
                font-size: 26px;
            }
        
            #item7 .content1 {
                background-color: rgba(0,0,0,0.3);
                text-shadow: 0 0 2px #333333;
            }
            #item7 .content2 {
                color: #fff;
                background-color: #ED1C24;
                font-size: 24px;
                text-shadow: 0 0 2px #fff , 0 0 4px #fff;
            }
            #item7 .content3 {
                background-color: #009A61;
                text-shadow:    0 1px rgba(255, 0, 255, 0.9),
                                0 2px rgba(255, 0, 255, 0.8),
                                0 3px rgba(255, 0, 255, 0.7),
                                0 4px rgba(255, 0, 255, 0.6),
                                0 5px rgba(255, 0, 255, 0.5),
                                0 5px 10px black;
            }
            
        

          總結來說:CSS3的新特性并不多, 缺乏的是創意創新靈感,將他們組合起來運用。年尾了,祝大家開開心心回家過大年、工作順順利利、合家美滿。

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