当里面有img时，Div没有高度

I have a div[div1] that is surrounding other elements. Inside the elements I have an image that is positioned absolute. Div1 and the elements have float left on them and are showing no height. Is there a way to have this so the main overall div1 has a height so other elements like footers can be floated below it.I have a div[div1] that is surrounding other el