min-height:100px;
height:auto;
But ie doesn't show the property.Now it can be possible,there is a simple code for all the browsers including ie.
#Mydiv
{
min-height:70px;
height:auto !important;
position:relative;
height:70px;
}
height:70px;
}
This will work with ie as well as firefox and crome.
Enjoy!! :)