.one_half { width: 48% }
.one_third { width: 30.66% }
.two_third { width: 65.33% }
.one_fourth { width: 22% }
.three_fourth { width: 74% }
.one_fifth { width: 16.8% }
.two_fifth { width: 37.6% }
.three_fifth { width: 58.4% }
.four_fifth { width: 67.2% }
.one_sixth { width: 13.33% }
.five_sixth { width: 82.67% }
.one_half,
.one_third,
.two_third,
.three_fourth,
.one_fourth,
.one_fifth,
.two_fifth,
.three_fifth,
.four_fifth,
.one_sixth,
.five_sixth {
	float: left;
	margin-bottom: 20px;
	margin-right: 4%;
	position: relative;
}
.column-last {
	clear: right;
	margin-right: 0!important;
}
.clear {
	clear: both;
	display: block;
	font-size: 0;
	height: 0;
	line-height: 0;
	width: 100%;
}
@media only screen
and (min-device-width : 320px)
and (max-device-width : 480px) {
	.one_half,
	.one_third,
	.two_third,
	.three_fourth,
	.one_fourth,
	.one_fifth,
	.two_fifth,
	.three_fifth,
	.four_fifth,
	.one_sixth,
	.five_sixth {
		width: 100%;
		margin-bottom: 0;
		margin-right: 0;
	}
}