<style type="text/css">
@media screen and (min-width:600px){
.slide1{background-image:src="C:\Users\Administrator\Desktop\网页\images\slide-1.jpg";}
}
@media screen and (max-width:600px){
.slide1{background-image:src="C:\Users\Administrator\Desktop\网页\images\slide-1.jpg";}
</style>
<body>
<div class="rbslider-slide slide1 rbslider-slide-active" style="width: 1346px; height: 880px;">
</body>
请问在这个头部定义之后的,在body那里也写了，为啥不显示
