初學(xué)CSS，在寫logo圖片背景加鏈接的時候發(fā)現(xiàn)下面2種代碼都可以實現(xiàn)，哪種更合適一些呢？第一個是這樣寫：#logo{float:left;width:160px;height:50px;background-image:url(./images/logo.@1x.png);background-image:-webkit-image-set(url(./images/logo.@1x.png)1x,url(./images/logo.@2x.png)2x);}#logoa{display:block;width:160px;height:50px;text-indent:-9999em;}第二個是這樣寫：#logo{float:left;}#logoa{display:block;width:160px;height:50px;background-image:url(./images/logo.@1x.png);background-image:-webkit-image-set(url(./images/logo.@1x.png)1x,url(./images/logo.@2x.png)2x);text-indent:-9999em;}謝謝，請指教。