下列哪条CSS样式规则是不正确的()
(A)img{float: left; margin: 20px; }
(B)img{float: right; width:120px; height: 80px;}
(C)img{float: right; right: 30;}
(D)img{float:left; margin-bottom: 2em;}
参考答案
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(A)img{float: left; margin: 20px; }
(B)img{float: right; width:120px; height: 80px;}
(C)img{float: right; right: 30;}
(D)img{float:left; margin-bottom: 2em;}