a {
	outline: none;
}

img.grayscale {
  filter: url("data:image/svg+xml;utf8,<svg xmlns=\'http://www.w3.org/2000/svg\'><filter id=\'grayscale\'><feColorMatrix type=\'matrix\' values=\'0.3333 0.3333 0.3333 0 0 0.3333 0.3333 0.3333 0 0 0.3333 0.3333 0.3333 0 0 0 0 0 1 0\'/></filter></svg>#grayscale"); /* Firefox 3.5+ */
  filter: gray; /* IE6-9 */
  -webkit-filter: grayscale(100%); /* Chrome 19+ & Safari 6+ */
}

img.grayscale:hover {
  filter: none;
  -webkit-filter: grayscale(0%);
}

.row > .column {
  padding: 2px;
}

.row:after {
  content: "";
  display: table;
  clear: both;
}

.column {
  float: left;
  width: 24%;
}

@media screen and (max-width: 1024px) {
	.row > .column {
	  padding: 3px 4px;
	}
	
	.column {
	  float: left;
	  width: 45%;
	}
}

@media screen and (max-width: 600px) {
	.row > .column {
	  padding: 3px 4px;
	}
	
	.column {
	  float: left;
	  width: 45%;
	}
}