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overflow&transform实现边框hover.html
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overflow&transform实现边框hover.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Document</title>
<style>
body,
html {
display: flex;
width: 100%;
height: 100%;
background: yellowgreen;
}
div {
position: relative;
margin: auto;
width: 200px;
height: 100px;
line-height: 100px;
text-align: center;
overflow: hidden;
}
div::after {
content: 'Hover Me';
position: absolute;
top: 4px;
bottom: 4px;
right: 4px;
left: 4px;
line-height: 92px;
font-size: 24px;
background: #fff;
border: 2px solid yellowgreen;
cursor: pointer;
color: yellowgreen;
}
div::before {
content: '';
position: absolute;
top: 0px;
bottom: 0px;
right: -20px;
left: 0px;
background: #fff;
transform: rotateZ(-90deg) translate(-100%, -100%);
transform-origin: top left;
transition: transform 0.3s;
transition-timing-function: linear;
}
div:hover {
/* // 对比度 */
filter: contrast(1.2);
}
div:hover::before {
transform: rotateZ(0deg) translate(0%, 0%);
}
</style>
</head>
<body>
<!-- 我们利用 overflow: hidden，把原本在容器外的一整个元素隐藏了起来； -->
<!-- 利用了 transform-origin，控制了元素的旋转中心。 -->
<div></div>
</body>
</html>