新增第118个小实例：带LOGO的全屏加载动画
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DESKTOP-BM6RJU5\wyanh
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114. HTML5+CSS3+JS小实例：Tabbar图标栏动画切换特效
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115. HTML5+CSS3+JQuery小实例：可爱的熊猫遮眼登录界面
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116. HTML5+CSS3小实例：社交卡片悬停特效
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117. HTML5+CSS3+JS小实例：3层图像的滑动对比效果
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117. HTML5+CSS3+JS小实例：3层图像的滑动对比效果
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118. HTML5+CSS3小实例：带LOGO的全屏加载动画
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*{
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/* 初始化 */
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margin: 0;
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padding: 0;
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}
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body{
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/* 100%窗口高度 */
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height: 100vh;
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}
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.loader-wrapper{
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/* 固定定位 */
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position: fixed;
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left: 0;
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top: 0;
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z-index: 1;
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width: 100%;
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height: 100%;
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/* 溢出隐藏 */
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overflow: hidden;
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/* 渐变背景 */
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background: linear-gradient(45deg,rgb(90,54,148) 0%,rgb(19,189,206) 33%,rgb(0,148,217) 66%,rgb(111,199,181) 100%);
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background-size: 400%;
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background-position: 0% 100%;
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/* 执行背景渐变动画：动画名 时长 加速后减速 无限次播放 */
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animation: gradient 7.5s ease-in-out infinite;
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}
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/* 旋转loading的外圈 */
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.loader{
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width: 150px;
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height: 150px;
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border: 3px solid transparent;
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border-top-color: #fff;
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/* 相对定位 居中 */
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position: relative;
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left: 50%;
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top: 50%;
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margin-left: -75px;
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margin-top: -75px;
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z-index: 2;
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border-radius: 50%;
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display: flex;
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justify-content: center;
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align-items: center;
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/* 执行旋转动画 */
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animation: spin 1.7s linear infinite;
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}
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/* 旋转loading的中圈 */
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.loader::before{
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content: "";
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/* 绝对定位 */
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position: absolute;
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top: 5px;
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left: 5px;
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bottom: 5px;
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right: 5px;
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border-radius: 50%;
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border: 3px solid transparent;
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border-top-color: #fff;
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/* 执行反向的旋转动画 reverse:反向 */
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animation: spin 0.6s linear infinite reverse;
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}
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/* 旋转loading的内圈 */
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.loader::after{
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content: "";
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/* 绝对定位 */
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position: absolute;
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top: 15px;
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left: 15px;
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bottom: 15px;
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right: 15px;
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border-radius: 50%;
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border: 3px solid transparent;
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border-top-color: #fff;
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/* 执行旋转动画 */
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animation: spin 1s linear infinite;
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}
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/* logo */
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.loader img{
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width: 55%;
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height: 55%;
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border-radius: 50%;
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/* 执行反向的旋转动画,时长必须和外圈的动画一致(不让其跟着旋转) */
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animation: spin 1.7s linear infinite reverse;
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}
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.loader-text{
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width: 50%;
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height: 36px;
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/* 绝对定位 水平居中 */
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position: absolute;
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top: 72%;
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left: 50%;
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transform: translateX(-50%);
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z-index: 3;
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/* 防止选取 */
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user-select: none;
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}
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.loader-text div{
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width: 30px;
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height: 36px;
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color: #fff;
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font-size: 32px;
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margin: 0 20px;
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/* 绝对定位 */
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position: absolute;
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/* 默认隐藏+旋转180度 */
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opacity: 0;
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transform: rotate(180deg);
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/* 执行文字移动动画 */
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animation: move 2s linear infinite;
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}
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/* 最后面的三个圆 */
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.loader-text div:nth-child(8)::before,
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.loader-text div:nth-child(9)::before,
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.loader-text div:nth-child(10)::before{
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content: "";
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width: 10px;
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height: 10px;
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border-radius: 50%;
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background-color: #fff;
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position: absolute;
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left: 0;
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bottom: 0;
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}
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/* 文字下的投影 */
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.loader-text div::after{
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content: "";
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width: 10px;
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height: 5px;
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border-radius: 50%;
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background-color: rgba(255,255,255,0.15);
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position: absolute;
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bottom: -40px;
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left: 50%;
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margin-left: -5px;
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}
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/* 最后面的三个圆的投影 */
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.loader-text div:nth-child(8)::after,
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.loader-text div:nth-child(9)::after,
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.loader-text div:nth-child(10)::after{
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left: 0;
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margin-left: 0;
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}
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/* 接下来为各个文字设置动画延迟时间 */
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.loader-text div:nth-child(2){
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animation-delay: 0.2s;
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}
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.loader-text div:nth-child(3){
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animation-delay: 0.4s;
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}
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.loader-text div:nth-child(4){
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animation-delay: 0.6s;
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}
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.loader-text div:nth-child(5){
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animation-delay: 0.8s;
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}
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.loader-text div:nth-child(6){
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animation-delay: 1s;
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}
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.loader-text div:nth-child(7){
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animation-delay: 1.2s;
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}
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.loader-text div:nth-child(8){
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animation-delay: 1.4s;
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}
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.loader-text div:nth-child(9){
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animation-delay: 1.6s;
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}
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.loader-text div:nth-child(10){
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animation-delay: 1.8s;
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}
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/* 定义动画 */
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/* 背景渐变动画 */
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@keyframes gradient {
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50%{
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background-position: 100% 0%;
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}
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}
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/* 旋转动画 */
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@keyframes spin {
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0%{
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transform: rotate(0);
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}
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100%{
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transform: rotate(360deg);
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}
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}
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/* 文字移动动画 */
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@keyframes move {
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0%{
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right: 0;
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opacity: 0;
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}
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35%{
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right: 41%;
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opacity: 1;
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transform: rotate(0);
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}
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65%{
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right: 59%;
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opacity: 1;
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transform: rotate(0);
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}
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100%{
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right: 100%;
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transform: rotate(-180deg);
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}
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}
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@ -0,0 +1,31 @@
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<!DOCTYPE html>
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<html>
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<head>
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<meta http-equiv="content-type" content="text/html; charset=utf-8">
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<meta name="viewport" content="width=device-width,initial-scale=1,maximum-scale=1,user-scalable=no">
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<title>带LOGO的全屏加载动画</title>
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<link rel="stylesheet" href="118.css">
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</head>
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<body>
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<div class="loader-wrapper">
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<div class="loader"><img src="/images/1.png" alt=""></div>
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<div class="loader-text">
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<!-- 10个div -->
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<div>L</div>
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<div>O</div>
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<div>A</div>
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<div>D</div>
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<div>I</div>
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<div>N</div>
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<div>G</div>
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<div></div>
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<div></div>
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<div></div>
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</div>
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</div>
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</body>
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</html>
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