新增第92个小实例：全屏搜索栏
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88. HTML5+CSS3小实例：广告灯牌效果的loading动画
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89. HTML5+CSS3小实例：自带射灯的浮雕按钮
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90. HTML5+CSS3小实例：超时空背景的登录界面
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91. HTML5+CSS3小实例：旋转的炫光心形loading动画
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91. HTML5+CSS3小实例：旋转的炫光心形loading动画
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92. HTML5+CSS3小实例：全屏搜索栏
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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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/* 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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/* 搜索按钮 */
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.search-btn{
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/* 相对定位 */
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position: relative;
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z-index: 1;
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width: 60px;
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height: 60px;
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line-height: 60px;
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text-align: center;
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/* 鼠标移入变小手 */
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cursor: pointer;
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}
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.search-btn .fa{
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color: #fff;
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font-size: 22px;
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}
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/* 关闭按钮 */
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.close-btn{
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/* 绝对定位 */
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position: absolute;
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top: 25px;
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right: 25px;
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z-index: 1;
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font-size: 25px;
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color: #fff;
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cursor: pointer;
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display: none;
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}
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.container{
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/* 固定定位 */
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position: fixed;
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width: 100%;
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height: 100%;
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display: flex;
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justify-content: center;
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align-items: center;
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/* 渐变背景 */
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background: linear-gradient(200deg,#6e86ee,#453c90);
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/* 将元素剪切为一个圆形(30px表示圆的半径, 50% 50%表示圆心的位置) */
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clip-path: circle(30px at 50% 50%);
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/* 设置过渡 */
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transition: 0.4s;
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}
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.search-box{
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/* 默认宽度为0(隐藏) */
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width: 0;
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height: 50px;
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display: flex;
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border-bottom: 3px solid #fff;
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/* 溢出隐藏 */
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overflow: hidden;
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/* 设置过渡 */
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transition: 0.3s;
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}
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.search-box input{
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width: 100%;
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height: 50px;
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border: none;
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background: none;
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outline: none;
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color: #fff;
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font-size: 22px;
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text-indent: 8px;
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}
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.search-box input::placeholder{
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color: rgba(255,255,255,0.7);
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}
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.search-box .fa{
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width: 50px;
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height: 50px;
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line-height: 50px;
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text-align: center;
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color: #fff;
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font-size: 22px;
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cursor: pointer;
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}
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#search_btn:checked ~ .search-btn{
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display: none;
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}
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#search_btn:checked ~ .close-btn{
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display: block;
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}
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#search_btn:checked ~ .container{
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clip-path: circle(100%);
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}
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#search_btn:checked ~ .container .search-box{
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width: 400px;
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}
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@ -0,0 +1,29 @@
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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>全屏搜索栏</title>
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<link href="https://cdn.bootcdn.net/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css" rel="stylesheet">
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<link rel="stylesheet" href="../css/92.css">
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</head>
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<body>
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<input type="checkbox" id="search_btn" hidden>
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<label for="search_btn" class="search-btn">
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<i class="fa fa-search" aria-hidden="true"></i>
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</label>
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<label for="search_btn" class="close-btn">
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<i class="fa fa-close" aria-hidden="true"></i>
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</label>
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<div class="container">
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<div class="search-box">
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<input type="text" placeholder="请输入..">
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<i class="fa fa-search" aria-hidden="true"></i>
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</div>
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</div>
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</body>
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</html>
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