Why does my homebutton doesn't resize according to my CSS attribute? -

this how link css entire masterpage in visual studio

<link rel="stylesheet" href="css/style.css" type="text/css" />

this how homebutton being created.

<div id="homebutton"> <input type="image" src="image/logo.jpg"> </div>

and how css like

#homebutton {    position:absolute;    left:0%;    top:0%;    margin: 0px;    height:70px; }

however, when change height pixel, homebutton's size still remain same. still dont know why.

because changing height of div.. must change height of input

#homebutton input[type=image] {    height:80px; }

IO