页脚仅出现在IE中的页面中间

body { margin: 0; padding: 0; height: 100%; font-family: Georgia; }

#parent 
{
    min-height: 100%;
    position: relative;
}

#header { position: relative; left:0px; top:0px; width: 100%; height:45px; background-color: black; }

#content { padding-bottom: 150px; position: relative; }

#footer { position: absolute; left: 0px; width:100%; bottom: 0; height:80px; background-color: black; }

#parent { height: 100%; /* min-height: 100%; */ }

html {
height: 100%;
}