Changes
.gallery3 > li:nth-child(3n+1) {
margin-left: 0;
}
.gallery3 .highlights li span {
position: absolute;
bottom: 0;
left: 0;
padding: 7px;
display: block;
width: 100%;
font-weight: bold;
-ms-box-sizing: border-box;
-moz-box-sizing: border-box;
-webkit-box-sizing: border-box;
box-sizing: border-box;
line-height: 1.1;
text-shadow: 0 0 5px #333333;
}
