A.p:after {content:"靜夜思:"}B.before:p{content:"靜夜思:"}C.after:p {content:"靜夜思:"}D.p:before{content:"靜夜思:"}
A.默認(rèn)縱向擺放,各自獨占一行B.分別設(shè)置3個div為float:left;使它們共用一行橫向擺放C.默認(rèn)橫向擺放,三個共一行D.A和B都對
A.float:rightB.flaot:rightC.float:leftD.flaot:left