媒体查询

例如:
@media (min-750px) and (max-1920px){
   ._td_box>tr>th:nth-child(1){
         60vw;
    }
    ._td_box>tr>th:nth-child(2){
         40vw;
    }
}
 
 
 
原文地址:https://www.cnblogs.com/dongyuezhuang/p/11641548.html