@media screen and (min-width:800px){ .a{ background: url('../image/banner/banner1.jpg') no-repeat left top; } }
当在移动设备之类的窗口<800px的时候打开页面,这时候浏览器会不会去下载a类的背景图片吗?
光阴似箭催人老,日月如移越少年。
No. You can answer this kind of question by practicing it yourself, so why bother asking
Of course not
No. You can answer this kind of question by practicing it yourself, so why bother asking
Of course not