.cajas {
	height: 75px;
	overflow: auto;
	width: 400px;
}
.cajas2 { border:1px solid #ccc; width:100%; height: 414px; overflow-y: scroll;}

.cajas3 { border:1px solid #ccc; width:100%; height: 135px; overflow-y: scroll;}

.cajas4 { border:1px solid #ccc; width:100%; height: 80px; overflow-y: scroll;}

.cajas5 { border:1px solid #ccc; width:100%; height: 350px; overflow-y: scroll;}

.cajas6 { border:1px solid #ccc; width:100%; height: 190px; overflow-y: scroll;}

.cajas7 { border:1px solid #ccc; width:100%; height: 270px; overflow-y: scroll;}

.tbbrd9 { border: 1px solid #999 !important; }