#pageContainer {
  max-width: 1000px;
	margin: 0 auto;
	padding: 0;
	text-align: center;
}

.row3 {
display: block;
margin: 0;
padding: 0;
text-align: center;
width:100%;
}

.row3 img {
cursor: pointer;
-webkit-transition: 0.25s;
-moz-transition: 0.25s;
transition: 0.25s;
webkit-filter: none;
-moz-filter: none;
filter: none;
margin: 10px;
width: 20%;
}

.row3 img:hover {
-webkit-filter: opacity(0.4);
-moz-filter: opacity(0.4);
filter: opacity(0.4);
}

section {
margin: 30px auto;
width: 100%;
}

@media screen and (max-width:450px) {
  .row3 img {
    width: 40%;
}