.col-sm-3 {
	padding:0 0 10px 0;
	text-align:center;
}



@media screen and (max-width: 768px) {
.about th,td{
	padding-left:10px;
	padding-right:10px;
}
.col-md-4 {
	text-align:center;
}
}

@media screen and (max-width: 640px) {
.col-sm-9 {
	padding:0 0 0 10px;
	text-align:center;
}

.about th,td{
	width: 100%;
    display: block;
}

}