.outer{background:#F6073B;  padding:12px}
.wrap{margin:0 auto; }
.sub{
    padding:12px;
    width:32%;
    height:150px;
    background:#BB183E;
    display:table-cell;
     border-right:solid #F6073B 1px;  
}
.sub:last-child{border:0px
}

/* Your style */
.sei-image {
  padding: 2px;
  border: 1px solid gray;
}

a {
  border: 0;
}

a:hover {
  border: 0;
}