.brand-box {
    height: 100px;
    overflow: hidden;
}

.brand-imgbox{
   height: 100%;
   overflow: hidden;
   transition:height 0.5s;
	-webkit-transition:height 0.5s; /* Safari */

}
.brand-box:hover .brand-imgbox{
    height: 0;
}

.brand-title{
    height: 100%;
}