常见写法：
立即学习“前端免费学习笔记（深入）”；
下面总结常见的响应式布局的分类：
@media screen and (max-width:320px){
#talkFooter .editArea{…… }}
@media screen and (min-width:321px) and (max-width:375px){
#talkFooter .editArea{…… }}
@media screen and (min-width:376px) and (max-width:414px){
#talkFooter .editArea{…… }}
@media screen and (min-width:415px) and (max-width:639px){
#talkFooter .editArea{……}}
@media screen and (min-width:640px) and (max-width:719px){
#talkFooter .editArea{……}}
@media screen and (min-width:720px) and (max-width:749px){
#talkFooter .editArea{……}}
@media screen and (min-width:750px) and (max-width:799px){
#talkFooter .editArea{……}}
@media screen(min-width:800px){}
立即学习“前端免费学习笔记（深入）”；
