float left で囲っていた背景が途切れてしまう場合の対象方
#body:after { content: ""; display: block; clear: both; height: 1px; overflow: hidden; } /*\*/ * html #body { height: 1em; overflow: visible; } /**/
#body:after { content: ""; display: block; clear: both; height: 1px; overflow: hidden; } /*\*/ * html #body { height: 1em; overflow: visible; } /**/