div:after,ul:after,dl:after{content:".";display:block;clear:both;height:0;visibility:hidden;}

来源：学生作业帮助网编辑：作业帮时间：2024/07/28 19:00:25

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div:after,ul:after,dl:after{content:".";display:block;clear:both;height:0;visibility:hidden;}
div:after,ul:after,dl:after{content:".";display:block;clear:both;height:0;visibility:hidden;}

div:after,ul:after,dl:after{content:".";display:block;clear:both;height:0;visibility:hidden;}
自动适应调试,并清除浮动

div:after,ul:after,dl:after{content:.;display:block;clear:both;height:0;visibility:hidden;} after after after after After after after After after after after after after after after The old man needs _____.A.to look after B.looking after C.being looked after D.looked after (2/3) look after B.look after C.looking after D.to look after 括号选哪个选项,为什