純css3打造的一款非常炫的加載圖。用在需要一定時間加載的地方非常合適。先上效果圖：

點擊這里在線預覽

代碼非常簡單。沒有用任何javascript代碼。純css3實現。

html代碼：

 <div class="content">        <div style="width: 970px; margin: auto">        </div>        <div class="rotate">            <span class="triangle base"></span><span class="triangle no1"></span><span class="triangle no2">            </span><span class="triangle no3"></span>        </div>    </div>

css代碼：

 body {    padding:0;    margin:0;        background-color: #2a4e66;  overflow: hidden;}.content {    width:100%;    height:100%;    top:0;    right:0;    bottom:0;    left:0;    position:absolute;}.rotate {    position: absolute;    top: 50%;    left: 50%;    margin: -93px 0 0 -93px;    background: transparent;    width: 186px;    height: 186px;    border-radius: 50%;    z-index: 20;}.rotate:after {    content: '';        position: absolute;    box-shadow: 0 0 30px #ffffff, 0 0 10px #ffffff, 0 0 2px #ffffff, inset 0 0 2px #ffffff, inset 0 0 4px #ffffff;    width: 186px;    height: 186px;    border-radius: 50%;    z-index: 10;}span.triangle.base {    position: absolute;    width: 0;     height: 0;    margin: 46px 0 0 13px;    border-left: 80px solid transparent;    border-right: 80px solid transparent;                    border-top: 140px solid #eeeeee;    transform-origin: 50% 50%;    z-index: 20;}span.triangle.no1 {    position: absolute;    margin: 46px 0 0 13px;    width: 0;     height: 0;     border-left: 80px solid transparent;    border-right: 80px solid transparent;                    border-bottom: 140px solid #eeeeee;    transform-origin: 0 100%;    z-index: 20;}span.triangle.no2 {    position: absolute;    margin: 46px 0 0 13px;    width: 0;     height: 0;     border-left: 80px solid transparent;    border-right: 80px solid transparent;                    border-bottom: 140px solid #eeeeee;    transform-origin: 100% 100%;    z-index: 20;}span.triangle.no3 {    position: absolute;    margin: 46px 0 0 13px;    width: 0;     height: 0;     border-left: 80px solid transparent;    border-right: 80px solid transparent;                    border-bottom: 140px solid #eeeeee;    transform-origin: 50% 100%;    z-index: 20;}/* Animation */.rotate {    -webkit-animation: rotateTriangle 3s linear infinite;    animation: rotateTriangle 3s linear infinite;}@-webkit-keyframes rotateTriangle {    from { -webkit-transform: rotate(0deg); }    to { -webkit-transform: rotate(60deg); }}@keyframes rotateTriangle {    from { transform: rotate(0deg); }    to { transform: rotate(60deg); }}.rotate:after {    -webkit-animation: glowAnimation 3s ease infinite;    animation: glowAnimation 3s ease infinite;}@-webkit-keyframes glowAnimation {            0% { box-shadow: 0 0 30px #ffffff, 0 0 10px #ffffff, 0 0 2px #ffffff, inset 0 0 2px #ffffff, inset 0 0 4px #ffffff; }    10% { box-shadow: 0 0 80px #ffffff, 0 0 20px #ffffff, 0 0 2px #ffffff, inset 0 0 4px #ffffff, inset 0 0 8px #ffffff; }    100% { box-shadow: 0 0 30px #ffffff, 0 0 10px #ffffff, 0 0 2px #ffffff, inset 0 0 2px #ffffff, inset 0 0 4px #ffffff; }}@keyframes glowAnimation {    0% { box-shadow: 0 0 30px #ffffff, 0 0 10px #ffffff, 0 0 2px #ffffff, inset 0 0 2px #ffffff, inset 0 0 4px #ffffff; }    10% { box-shadow: 0 0 80px #ffffff, 0 0 20px #ffffff, 0 0 2px #ffffff, inset 0 0 4px #ffffff, inset 0 0 8px #ffffff; }    100% { box-shadow: 0 0 30px #ffffff, 0 0 10px #ffffff, 0 0 2px #ffffff, inset 0 0 2px #ffffff, inset 0 0 4px #ffffff; }}span.triangle.base {    -webkit-animation: scaleTriangleBase 3s linear infinite;    animation: scaleTriangleBase 3s linear infinite;}@-webkit-keyframes scaleTriangleBase {    from { -webkit-transform: translate(0px,-11px) scale(0.5); }    to { -webkit-transform: translate(0px,0px) scale(1); }    }@keyframes scaleTriangleBase {    from { transform: translate(0px,-11px) scale(0.5); }    to { transform: translate(0px,0px) scale(1); }}span.triangle.no1 {    -webkit-animation: scaleTriangleOne 3s linear infinite;    animation: scaleTriangleOne 3s linear infinite;}@-webkit-keyframes scaleTriangleOne {    from { -webkit-transform: translate(0px,-46px) scale(0.5); }    to { -webkit-transform: translate(-80px,0px) scale(0); }}@keyframes scaleTriangleOne {    from { transform: translate(0px,-46px) scale(0.5); }    to { transform: translate(-80px,0px) scale(0); }}span.triangle.no2 {    -webkit-animation: scaleTriangleTwo 3s linear infinite;    animation: scaleTriangleTwo 3s linear infinite;}@-webkit-keyframes scaleTriangleTwo {    from { -webkit-transform: translate(0px,-46px) scale(0.5); }    to { -webkit-transform: translate(80px,0px) scale(0); }}@keyframes scaleTriangleTwo {    from { transform: translate(0px,-46px) scale(0.5); }    to { transform: translate(80px,0px) scale(0); }}span.triangle.no3 {    -webkit-animation: scaleTriangleThree 3s linear infinite;    animation: scaleTriangleThree 3s linear infinite;}@-webkit-keyframes scaleTriangleThree {    from { -webkit-transform: translate(0px,-116px) scale(0.5); }    to { -webkit-transform: translate(0px,-280px) scale(0); }}@keyframes scaleTriangleThree {    from { transform: translate(0px,-116px) scale(0.5); }    to { transform: translate(0px,-280px) scale(0); }}

轉載請注明來源地址：http://www.cnblogs.com/liaohuolin/p/3911528.html