单项选择题
A.demo.style.cssText="color:red;background:blue;" B.demo.style="color:red;background:blue;" C.demo.style.text="color:red;background:blue;" D.以上说法都不正确
A.[1,2,3,4,5] B.[2,3,4,5] C.3 D.[3,4,5]
A..model{position:absolute;top:50%;left:50%;margin-left:-50px;margin-top:-100px;} B..model{position:absolute;top:50%;left:50%;margin-left:50px;margin-top:-100px;} C..model{position:absolute;top:50%;left:50%;margin-left:-50px;margin-top:100px;} D..model{position:absolute;top:50%;left:50%;margin-left:50px;margin-top:100px;}