.brochures1 a{float:left;width:140px;height:140px;background:url(img/impressions/brochures/1.png)}
.brochures1 a:hover{background:url(img/impressions/brochures/1_thumbs.png)}
.brochures2 a{float:left;width:140px;height:140px;background:url(img/impressions/brochures/2.png)}
.brochures2 a:hover{background:url(img/impressions/brochures/2_thumbs.png)}
.brochures3 a{float:left;width:140px;height:140px;background:url(img/impressions/brochures/3.png)}
.brochures3 a:hover{background:url(img/impressions/brochures/3_thumbs.png)}
.brochures4 a{float:left;width:140px;height:140px;background:url(img/impressions/brochures/4.png)}
.brochures4 a:hover{background:url(img/impressions/brochures/4_thumbs.png)}
.brochures5 a{float:left;width:140px;height:140px;background:url(img/impressions/brochures/5.png)}
.brochures5 a:hover{background:url(img/impressions/brochures/5_thumbs.png)}
.brochures6 a{float:left;width:140px;height:140px;background:url(img/impressions/brochures/6.png)}
.brochures6 a:hover{background:url(img/impressions/brochures/6_thumbs.png)}