<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>纯css实现div尺寸可调整</title>
<style>
.box {
width: 100px;
max-width: 600px;
min-height: 200px;
resize: both; /* 允许水平调整大小 */
overflow: auto; /* 必须设置 overflow 为 auto 或 visible 才能调整大小 */
position: relative;
background-color: aliceblue;
}
/* .box::after {
content: "";
position: absolute;
top: 0;
right: 0;
width: 10px;
height: 100%;
pointer-events: auto;
cursor: ew-resize;
z-index: 1;
} */
.box:hover::after {
background-color: rgba(0, 0, 0, 0.1); /* 可选：添加背景色以便观察效果 */
}
</style>
</head>
<body>
<div class="box"></div>
</body>
</html>
