.nx-body .button-default {
    background-color: #c7c7c7;
    background-image: -webkit-gradient(linear, left top, left bottom, color-stop(0%, #c7c7c7), color-stop(50%, #b7b7b7), color-stop(50%, #b2b2b2), color-stop(100%, #bababa));
    background-image: -webkit-linear-gradient(top, #c7c7c7 0%, #b7b7b7 50%, #b2b2b2 50%, #bababa 100%);
    background-image: -moz-linear-gradient(top, #c7c7c7 0%, #b7b7b7 50%, #b2b2b2 50%, #bababa 100%);
    background-image: -ms-linear-gradient(top, #c7c7c7 0%, #b7b7b7 50%, #b2b2b2 50%, #bababa 100%);
    background-image: -o-linear-gradient(top, #c7c7c7 0%, #b7b7b7 50%, #b2b2b2 50%, #bababa 100%);
    background-image: linear-gradient(top, #c7c7c7 0%, #b7b7b7 50%, #b2b2b2 50%, #bababa 100%);
    border-top: 1px solid #d0d0d0;
    border-right: 1px solid #b5b5b5;
    border-bottom: 1px solid #9f9f9f;
    border-left: 1px solid #b5b5b5;
    -webkit-box-shadow: inset 0 0 2px 0 rgba(185, 185, 185, 0.8);
    -moz-box-shadow: inset 0 0 2px 0 rgba(185, 185, 185, 0.8);
    box-shadow: inset 0 0 2px 0 rgba(185, 185, 185, 0.8);
    color: #fff;
    text-shadow: 0 -1px 1px #b2b2b2;
}

    .nx-body .button-default:hover,
    .nx-body .button-default:focus {
        background-color: #bdbdbd;
        background-image: -webkit-gradient(linear, left top, left bottom, color-stop(0%, #bdbdbd), color-stop(50%, #bababa), color-stop(50%, #a4a4a4), color-stop(100%, #b9b9b9));
        background-image: -webkit-linear-gradient(top, #bdbdbd 0%, #bababa 50%, #a4a4a4 50%, #b9b9b9 100%);
        background-image: -moz-linear-gradient(top, #bdbdbd 0%, #bababa 50%, #a4a4a4 50%, #b9b9b9 100%);
        background-image: -ms-linear-gradient(top, #bdbdbd 0%, #bababa 50%, #a4a4a4 50%, #b9b9b9 100%);
        background-image: -o-linear-gradient(top, #bdbdbd 0%, #bababa 50%, #a4a4a4 50%, #b9b9b9 100%);
        background-image: linear-gradient(top, #bdbdbd 0%, #bababa 50%, #a4a4a4 50%, #b9b9b9 100%);
        color: #fff;
    }

    .nx-body .button-default:active {
        border-top: 1px solid #b5b5b5;
        border-right: 1px solid #9f9f9f;
        border-bottom: 1px solid #858585;
        border-left: 1px solid #9f9f9f;
        -webkit-box-shadow: inset 0 0 5px 2px #7d7d7d, 0 1px 0 #eeeeee;
        -moz-box-shadow: inset 0 0 5px 2px #7d7d7d, 0 1px 0 #eeeeee;
        box-shadow: inset 0 0 5px 2px #7d7d7d, 0 1px 0 #eeeeee;
    }