4列
.resources .box2 ul{
100%;
}
.resources .box2 ul li{
float: left;
23.75%;
margin:0.5%;
background: skyblue;
}
.resources .box2 ul{
100%;
}
.resources .box2 ul li{
float: left;
23.75%;
margin:0.5%;
background: skyblue;
}