问各位大侠关于div浮动的问题_html/css_WEB-ITnose
div float div
div A里面有两个div B和C,A的高度是100%，但当B和C都设为浮动的时候，A的高度就变成0了，有没有办法让A的高度继续使用百分比而不会变成0？或者是B和C的不使用浮动而可以并排显示？回复讨论(解决方案)
高度不能使用百分比，只有写固定的值。按你的情况，你B,C应该是有高度的（固定值）然后用浮动用完之后记得清除:
按上面的写法会出问题
上面就多加了一个DIV用于清除浮动，这样就好了。为了兼容性的保险起见你在A这个DIV中加上overflow:hiddden;
高度不能设百分比，没浮动的时候a的高是b和c撑起来的
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