CSS Layouts – Percent Based

                                          .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 {
    position: relative;
    margin-right: 4%;
    float: left;
}
.last {
    margin-right: 0 !important;
    clear: right;
}
.clearboth {
    clear: both;
    display: block;
    font-size: 0;
    height: 0;
    line-height: 0;
    width: 100%;
}