<h2>响应式判断</h2> <p class="example">操作浏览器窗口,查看效果。</p>
.example { padding: 20px; color: white; } /* Extra small devices (phones, 600px and down) */ @media only screen and (max- 600px) { .example {background: red;} } /* Small devices (portrait tablets and large phones, 600px and up) */ @media only screen and (min- 600px) { .example {background: green;} } /* Medium devices (landscape tablets, 768px and up) */ @media only screen and (min- 768px) { .example {background: blue;} } /* Large devices (laptops/desktops, 992px and up) */ @media only screen and (min- 992px) { .example {background: orange;} } /* Extra large devices (large laptops and desktops, 1200px and up) */ @media only screen and (min- 1200px) { .example {background: pink;} }