強制換行：word-warp:block-word; 任意大小圖片是自適應居中： css: .wrapperBox{border:1px solid red; width:100px; height:100px; display:table-cell; font-size:0; text-align:center; vertical-align:middle; *position:relative;padding:0; overflow:hidden; } .innerBox{text-align:center; vertical-align:middle; width:100px\9; *width:auto;font-size:0; *position:absolute;*top:50%;*left:50%;} img{ max-height:100px; max-width:100px; *position:relative;*bottom:50%;*right:50%;margin:0 auto;} html <div class="wrapperBox"> <div class="innerBox"> <img src="images/test2.jpg" />