.five_sixth,.four_fifth,.full_width,.one_fifth,.one_fourth,.one_half,.one_sixth,.one_third,.three_fifth,.three_fourth,.two_fifth,.two_third{float:left}
.clear_column{clear:both;display:block;font-size:0;height:0;line-height:0;width:100%;overflow:hidden}
.full_width{width:100%}
.one_half{width:50%}
.one_third{width:33.3%}
.two_third{width:66.6%}
.one_fourth{width:25%}
.three_fourth{width:75%}
.one_fifth{width:20%}
.two_fifth{width:40%}
.three_fifth{width:60%}
.four_fifth{width:80%}
.one_sixth{width:16.6%}
.five_sixth{width:83.4%}
@media screen and (max-width:600px){
.five_sixth,.four_fifth,.full_width,.one_fifth,.one_fourth,.one_half,.one_sixth,.one_third,.three_fifth,.three_fourth,.two_fifth,.two_third{clear:both;width:100%;margin-left:0;margin-right:0;margin-bottom:1em}
}