新增第121个小实例：飞行的钢铁侠loading加载动画
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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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119. HTML5+CSS3小实例：双层波浪动画特效
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120. HTML5+CSS3+JS小实例：阿里云盘的侧边导航栏
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120. HTML5+CSS3+JS小实例：阿里云盘的侧边导航栏
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121. HTML5+CSS3小实例：飞行的钢铁侠loading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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/* 渐变背景 */
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background: linear-gradient(to top,#70b9f1,#1e3c55);
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/* 溢出隐藏 */
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overflow: hidden;
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}
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.container{
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width: 100%;
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height: 100%;
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/* 弹性布局 水平+垂直居中 */
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display: flex;
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justify-content: center;
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align-items: center;
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}
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/* 钢铁侠 */
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.iron-man{
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/* 相对定位 */
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position: relative;
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/* 执行飞行抖动动画：动画名 时长 线性的 无限次播放 */
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animation: flight 0.5s linear infinite;
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}
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.iron-man img{
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width: 250px;
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position: relative;
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z-index: 1;
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}
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/* 脚下喷射线 */
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.iron-man span{
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width: 30px;
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height: 1px;
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background-color: #fff;
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/* 绝对定位 */
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position: absolute;
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top: 12px;
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z-index: 0;
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/* 执行喷射动画 */
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animation: spray 0.3s linear infinite;
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}
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/* 为每条喷射线设置top、动画延迟时间 */
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.iron-man span:nth-child(2){
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top: 13px;
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animation-delay: -1s;
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}
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.iron-man span:nth-child(3){
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top: 14px;
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animation-delay: -2s;
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}
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.iron-man span:nth-child(4){
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top: 15px;
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animation-delay: -1.5s;
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}
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/* 背景线区域 */
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.lines{
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width: 100%;
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height: 100%;
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position: absolute;
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left: 0;
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top: 0;
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}
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/* 背景线 */
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.lines span{
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position: absolute;
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width: 20%;
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height: 2px;
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background-color: #fff;
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/* 执行线移动的动画 */
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animation: linemove linear infinite;
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}
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/* 为每条线设置top、动画时长、动画延迟时间 */
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.lines span:nth-child(1){
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top: 20%;
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animation-duration: 0.6s;
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animation-delay: -5s;
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}
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.lines span:nth-child(2){
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top: 40%;
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animation-duration: 0.8s;
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animation-delay: -1s;
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}
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.lines span:nth-child(3){
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top: 60%;
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animation-duration: 0.6s;
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animation-delay: 0s;
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}
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.lines span:nth-child(4){
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top: 80%;
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animation-duration: 0.5s;
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animation-delay: -3s;
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}
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.loading-text{
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/* 绝对定位 水平居中 垂直偏下 */
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position: absolute;
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left: 50%;
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transform: translateX(-50%);
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top: 58%;
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color: #fff;
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font-size: 14px;
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letter-spacing: 3px;
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white-space: nowrap;
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/* 执行文字移动的动画：动画名 时长 贝塞尔曲线 无限次播放 */
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animation: textmove 3s cubic-bezier(0.075, 0.82, 0.165, 1) infinite;
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}
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/* 定义动画 */
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/* 飞行动画（抖动） */
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@keyframes flight {
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0%{
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transform: translate(2px,1px) rotate(0deg);
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}
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10%{
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transform: translate(-1px,-3px) rotate(-1deg);
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}
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20%{
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transform: translate(-2px,0px) rotate(1deg);
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}
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30%{
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transform: translate(1px,2px) rotate(0deg);
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}
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40%{
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transform: translate(1px,-1px) rotate(1deg);
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}
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50%{
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transform: translate(-1px,3px) rotate(-1deg);
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}
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60%{
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transform: translate(-1px,1px) rotate(0deg);
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}
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70%{
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transform: translate(3px,1px) rotate(-1deg);
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}
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80%{
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transform: translate(-2px,-1px) rotate(1deg);
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}
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90%{
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transform: translate(2px,1px) rotate(0deg);
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}
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100%{
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transform: translate(1px,-2px) rotate(-1deg);
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}
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}
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/* 脚下喷射 */
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@keyframes spray {
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0%{
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left: 0;
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opacity: 1;
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}
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100%{
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left: -80px;
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opacity: 0;
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}
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}
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/* 线移动（速度的感觉） */
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@keyframes linemove {
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0%{
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left: 200%;
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opacity: 1;
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}
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100%{
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left: -200%;
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opacity: 0;
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}
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}
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/* 加载文字移动 */
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@keyframes textmove {
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0%{
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margin-left: 500px;
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opacity: 0;
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}
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30%,70%{
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margin-left: 0;
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opacity: 1;
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}
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100%{
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margin-left: -500px;
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opacity: 0;
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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>飞行的钢铁侠loading加载动画</title>
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<link rel="stylesheet" href="121.css">
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</head>
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<body>
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<div class="container">
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<div class="iron-man">
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<span></span>
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<span></span>
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<span></span>
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<span></span>
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<img src="images/iron_man.png" alt="">
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</div>
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<div class="lines">
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<span></span>
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<span></span>
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<span></span>
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<span></span>
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</div>
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<div class="loading-text">灭霸你给我等着，等我加载完</div>
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</div>
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</body>
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</html>
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