div模拟textarea文本域轻松实现高度自适应

<!doctype html>

<html lang="en">

<head>

<meta charset="UTF-8">

<title>div模拟textarea文本域轻松实现高度自适应</title>

<style>

h2 {

text-align: center;

margin: 50px auto;

}

.test_box {

width: 400px;

min-height: 20px;

max-height: 50px;

_height: 120px;

margin-left: auto;

margin-right: auto;

padding: 6px;

outline: 0;

border: 1px solid #a0b3d6;

font-size: 14px;

line-height: 20px;

/*padding: 2px;*/

word-wrap: break-word;

overflow-x: hidden;

overflow-y: auto;

border-radius: 4px;

border-color: rgba(82, 168, 236, 0.8);

box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.1), 0 0 8px rgba(82, 168, 236, 0.6);

}

</style>

</head>

<body>

<h2>div模拟textarea文本域轻松实现高度自适应</h2>

<div class="test_box" contenteditable="true"><br /></div>

</body>

</html>

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