css响应式布局-media

@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){}