@mediascreenand(min-width:768px)and(max-width:991px){.content{height:680px}.box{top:320px}}@mediascr
@media screen and (min-width:768px) and (max-width:991px){ .content{height:680px}.box{top:320px} }@media screen and (min-width:992px) and (max-width:1199px){ //你想change的样式，多个样式直接跟着写即可 }@media screen and (min-width:1200px){ //你想change的样式，多个样式直接跟着写即可 }这是常用的几个分辨率的样式。记录下
