<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Document</title>
<style>
html {
font-size: 100px;
}
span {
font-size: 12px;
line-height: 12;
}
</style>
</head>
<body>
<div>
<span>dsflfij</span>
</div>
</body>
</html>
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After setting the html root font to a very large value, why does the div that wraps the inline elements become inexplicably taller? -PHP Chinese website Q&A-After setting the HTML root font to a very large value, why does the div that wraps the inline elements become inexplicably taller? -PHP Chinese website Q&A
Let’s take a look and learn.
<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>Document</title> <style> html { font-size: 100px; } span { font-size: 12px; line-height: 12; } </style> </head> <body> <div> <span>dsflfij</span>1 </div> </body> </html>因为font-size可继承，你这样写了后div的font-size也变大了。
并且需要注意的一点line-height里面 12 ！= 12px,详情百度一下差异