<!DOCTYPE html>
<html lang="en"><head><meta charset="UTF-8"><meta http-equiv="X-UA-Compatible" content="ie=edge"><title>user-select</title>
</head>
<style>.test {padding: 10px;-webkit-user-select: none;-moz-user-select: none;-o-user-select: none;user-select: none;background: #eee;}
</style><body><div class="test" onselectstart="return false;" unselectable="on">禁止选中文本内容</div>
</body></html>