A.在浮動元素末尾添加一個空的標簽例如<div style=”clear:both”></div> B.通過設(shè)置父元素overflow值為hidden; C.父元素也設(shè)置浮動 D.給父元素添加clearfix類
A.col-md-8 col-xs-12 B.col-lg-8 col-sm-12 C.col-md-8 col-sm-12 D.col-lg-8 col-xs-12
A.<!DOCTYPE html> B.<!DOCTYPE HTML PUBLIC> C.<!DOCTYPE xhtml> D.<!DOCTYPE HTML5>