.banner1100{ background-color:#f4f4f4; padding:5px }
.banner800{ background-color:#f4f4f4; padding:5px; margin-bottom:15px }

.banner300 {display:block; width:100%; max-width:290px; margin:10px auto 10px; text-align:center; padding:0px; border:0px #666 solid;
}

.banner300 img { width:100%; max-width:300px;}

.publit1y2 { background-color:#f4f4f4; padding:5px; margin: 10px auto 10px; max-width:350px; text-align:center; }

/*para cada uno de 4 col de home */
.h4col {display: block; width:100%; max-width:270px; height: 270px; margin:10px auto 10px; text-align:center; padding:0px; 
        border:0px #666 solid; background-color: #f4f4f4;}
.h4col img { width:100%; max-width:300px;}

 
@media screen and (max-width: 640px) {
.h4col {display:block; width:100%; width:320px; margin:auto; text-align:center; margin-bottom: 15px; padding:0px; border:0px #666 solid;}
.h4col img { width:100%; max-width:320px;}
}