.full_width{width:100%}.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%}