如何让某一行子元素根据父元素高度变化,当高度足够时不显示滚动条,当高度不够时显示滚动条
只需要父元素设置flex布局,子元素设置overflow: auto;即可
上代码:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<style>
.auto-size {
width: 400px;
height: 300px;
overflow: auto;
resize: both;
}
.container {
height: 100%;
background-color: lightgray;
overflow: hidden;
border: 1px dashed;
box-sizing: border-box;
display: flex;
flex-direction: column;
}
.row-1 {
background-color: lightblue;
line-height: 40px;
}
.row-2 {
background-color: lightpink;
overflow: auto;
}
.row-3 {
background-color: lightblue;
line-height: 40px;
}
</style>
</head>
<body>
<div class="auto-size">
<div class="container">
<div class="row-1">
row-1row-1row-1
</div>
<div class="row-2">
<div class="row-inner">
<div>row-2</div>
<div>row-2</div>
<div>row-2</div>
<div>row-2</div>
<div>row-2</div>
<div>row-2</div>
<div>row-2</div>
<div>row-2</div>
</div>
</div>
<div class="row-3">
row-3row-3row-3
</div>
</div>
</div>
</body>
</html>