* { margin:0px; padding:0px;  font-family: 'arimoregular', arial, verdana; font-size:12px;}
html, body { width:100%; height:100%; }

.ban1, .ban2 { position:relative; width:100%; /*height:50%;*/ min-height:300px; height: -moz-calc(50vh - 30px);height: -webkit-calc(50vh - 30px);height: -o-calc(50vh - 30px);height: calc(50vh - 30px); /*background: #f00;*/ }
.ban2a, .ban2b { position:relative; float:left; width:50%; height:100%; min-height:300px; /*background: #0f0;*/ }

.botHomeT { min-width:180px; background: url('images/transparente.png'); border:2px solid #fff; color: #fff; padding:5px 25px; cursor:pointer; font-family: 'arimoregular', arial, verdana; font-size:14px; }
.botHome { min-width:180px; background: #000; border:2px solid #000; color: #fff; padding:5px 25px; cursor:pointer; font-family: 'arimoregular', arial, verdana; font-size:14px; }

@media only screen and (max-width: 640px) { /* (max-height: 460px) {*/
			 .ban2a, .ban2b { width:100%;  min-height:300px;}
			 
}