.zerogrid {
    width: 960px;
    position: relative;
    margin: 0 auto;
    padding: 0px;
}

    .zerogrid:after {
        content: "\0020";
        display: block;
        height: 0;
        clear: both;
        visibility: hidden;
    }

    .zerogrid .row {
    }

        .zerogrid .row:before, .row:after {
            content: '\0020';
            display: block;
            overflow: hidden;
            visibility: hidden;
            width: 0;
            height: 0;
        }

        .zerogrid .row:after {
            clear: both;
        }

    .zerogrid .row {
        zoom: 1;
    }

    .zerogrid .wrap-col {
        margin: 10px;
    }

    .zerogrid .col-1-2, .zerogrid .col-1-3, .zerogrid .col-2-3, .zerogrid .col-1-4, .zerogrid .col-2-4, .zerogrid .col-3-4, .zerogrid .col-1-5, .zerogrid .col-2-5, .zerogrid .col-3-5, .zerogrid .col-4-5, .zerogrid .col-1-6, .zerogrid .col-2-6, .zerogrid .col-3-6, .zerogrid .col-4-6, .zerogrid .col-5-6 {
        float: left;
        display: inline-block;
    }

    .zerogrid .col-full {
        width: 100%;
    }

    .zerogrid .col-1-2 {
        width: 50%;
    }

    .zerogrid .col-1-3 {
        width: 33.33%;
    }

    .zerogrid .col-2-3 {
        width: 66.66%;
    }

    .zerogrid .col-1-4 {
        width: 25%;
    }

    .zerogrid .col-2-4 {
        width: 50%;
    }

    .zerogrid .col-3-4 {
        width: 75%;
    }

    .zerogrid .col-1-5 {
        width: 20%;
    }

    .zerogrid .col-2-5 {
        width: 40%;
    }

    .zerogrid .col-3-5 {
        width: 60%;
    }

    .zerogrid .col-4-5 {
        width: 80%;
    }

    .zerogrid .col-1-6 {
        width: 16.66%;
    }

    .zerogrid .col-2-6 {
        width: 33.33%;
    }

    .zerogrid .col-3-6 {
        width: 50%;
    }

    .zerogrid .col-4-6 {
        width: 66.66%;
    }

    .zerogrid .col-5-6 {
        width: 83.33%;
    }

@media only screen and (min-width: 768px) and (max-width: 959px) {
    .zerogrid {
        width: 768px;
    }
}

@media only screen and (max-width: 767px) {
    .zerogrid {
        width: 100%;
    }
}

@media only screen and (min-width: 620px) and (max-width: 767px) {
    .zerogrid {
        width: 100%;
    }
}

@media only screen and (min-width: 480px) and (max-width: 619px) {
    .zerogrid {
        width: 100%;
    }

        .zerogrid .col-1-3, .zerogrid .col-2-3 {
            width: 100%;
        }

        .zerogrid .col-1-4 {
            width: 50%;
        }

        .zerogrid .col-1-6, .zerogrid .col-2-6, .zerogrid .col-3-6, .zerogrid .col-4-6, .zerogrid .col-5-6 {
            width: 100%;
        }
}

@media only screen and (max-width: 479px) {
    .zerogrid, .zerogrid .col-1-2, .zerogrid .col-1-3, .zerogrid .col-2-3, .zerogrid .col-1-4, .zerogrid .col-2-4, .zerogrid .col-3-4, .zerogrid .col-1-5, .zerogrid .col-2-5, .zerogrid .col-3-5, .zerogrid .col-4-5, .zerogrid .col-1-6, .zerogrid .col-2-6, .zerogrid .col-3-6, .zerogrid .col-4-6, .zerogrid .col-5-6 {
        width: 100%;
    }
}