<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1">
<title></title>
<style>
#draw-border {
display: flex;
align-items: center;
justify-content: center;
height: 100vh;
}
button {
border: 0;
background: none;
text-transform: uppercase;
color: #4361ee;
font-weight: bold;
position: relative;
outline: none;
padding: 10px 20px;
box-sizing: border-box;
}
button::before, button::after {
box-sizing: inherit;
position: absolute;
content: '';
border: 2px solid transparent;
width: 0;
height: 0;
}
button::after {
bottom: 0;
right: 0;
}
button::before {
top: 0;
left: 0;
}
button:hover::before, button:hover::after {
width: 100%;
height: 100%;
}
button:hover::before {
border-top-color: #4361ee;
border-right-color: #4361ee;
transition: width 0.3s ease-out, height 0.3s ease-out 0.3s;
}
button:hover::after {
border-bottom-color: #4361ee;
border-left-color: #4361ee;
transition: border-color 0s ease-out 0.6s, width 0.3s ease-out 0.6s, height 0.3s ease-out 1s;
}
</style>
</head>
<body>
<div id="draw-border">
<button>Hover me</button>
</div>
</body>
</html>边框效果
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转载自blog.csdn.net/baidu_39043816/article/details/108058095
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