摘要: //当屏幕大于769px @media screen and (min-width: 769px){} //当屏幕小于769px @media screen and (max-width: 768px){}//calc自动计算 (百分比空格(+-*X)空格20px) width: calc(50% - 20px); 阅读全文
posted @ 2017-03-05 16:43 黄先森 阅读(159) 评论(0) 推荐(0)