當(dāng)瀏覽器寬度于小于500px時, 背景色為紅色
@media screen and (max-width: 500px) {
body {
background-color:red;
}
}
當(dāng)瀏覽器寬度于大于500px時, 背景色為紅色
@media screen and (min-width: 500px) {
body {
background-color:red;
}
}