html_css_demo/css/92.css

101 lines
2.0 KiB
CSS

*{
/* 初始化 */
margin: 0;
padding: 0;
}
body{
/* 100%窗口高度 */
height: 100vh;
/* 弹性布局 水平+垂直居中 */
display: flex;
justify-content: center;
align-items: center;
}
/* 搜索按钮 */
.search-btn{
/* 相对定位 */
position: relative;
z-index: 1;
width: 60px;
height: 60px;
line-height: 60px;
text-align: center;
/* 鼠标移入变小手 */
cursor: pointer;
}
.search-btn .fa{
color: #fff;
font-size: 22px;
}
/* 关闭按钮 */
.close-btn{
/* 绝对定位 */
position: absolute;
top: 25px;
right: 25px;
z-index: 1;
font-size: 25px;
color: #fff;
cursor: pointer;
display: none;
}
.container{
/* 固定定位 */
position: fixed;
width: 100%;
height: 100%;
display: flex;
justify-content: center;
align-items: center;
/* 渐变背景 */
background: linear-gradient(200deg,#6e86ee,#453c90);
/* 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) */
clip-path: circle(30px at 50% 50%);
/* 设置过渡 */
transition: 0.4s;
}
.search-box{
/* 默认宽度为0(隐藏) */
width: 0;
height: 50px;
display: flex;
border-bottom: 3px solid #fff;
/* 溢出隐藏 */
overflow: hidden;
/* 设置过渡 */
transition: 0.3s;
}
.search-box input{
width: 100%;
height: 50px;
border: none;
background: none;
outline: none;
color: #fff;
font-size: 22px;
text-indent: 8px;
}
.search-box input::placeholder{
color: rgba(255,255,255,0.7);
}
.search-box .fa{
width: 50px;
height: 50px;
line-height: 50px;
text-align: center;
color: #fff;
font-size: 22px;
cursor: pointer;
}
#search_btn:checked ~ .search-btn{
display: none;
}
#search_btn:checked ~ .close-btn{
display: block;
}
#search_btn:checked ~ .container{
clip-path: circle(100%);
}
#search_btn:checked ~ .container .search-box{
width: 400px;
}