forzar un height

[Snake nS]

Código:

body {
    background-color: #CCCCCC; 	
    margin-left: 0px;
	margin-top: 0px;
	margin-right: 0px;
	margin-bottom: 0px;
	}
#capamadre { height: 100%; width: 779px; margin:auto;}
#arriba1 { height: 15px; width: 779px; background-image: url(../Images/design_01.gif);}
#arriba2 { height: 59px; width: 779px; background-image: url(../Images/design_02.gif)}
.contiene1 { width: 100%; height:24px }
.izquierda1 { width:123px; height:24px; float:left; background-image: url(../Images/Design2-remix_02.gif); }
.derecha1 { width:656px; height:24px; float:right; background-image: url(../Images/barraremix.gif); }
#arriba3 { height: 9px; width: 779px; background-image: url(../Images/design_12.gif);}
.contiene2 {width:100%; height:19px }
.izquierda2 {width:140px; height:19px; float:left; background-image: url(../Images/design-2_02.gif);}
.derecha2 {width:639px; height:19px; float:right; background-image: url(../Images/barra-temas.gif); }
.contiene3 {width:100%; height:447px }
.menulateral {width:140px; height:447px; float:left; background-image: url(../Images/design-2_04.gif);}
.capacontenido {width:639px; height:447px; float: right; background-color: #A3A3A3;}
#footer { height: 27px; width: 779px; background-image: url(../Images/design_18.gif)}