#ProductDetail #Spec .FirstRowFixed {
    width: calc(100% - 100px);
}

#ProductDetail #Spec .Container.Computer {
    width: 100%;
    padding: 0 50px;
}

#ProductDetail #Spec .Computer table {
    table-layout: fixed;
    width: 100%;
}

@media screen and (max-width: 1249px) {
    #ProductDetail #Spec .Container.Computer {
        padding: 0;
        width: 100%;
        height: 500px;
        border-left: 50px solid #fff;
        overflow: scroll;
    }
    #ProductDetail #Spec .Computer table {
        margin: 0 50px 0 0;
        width: 1500px;
    }
    #ProductDetail #Spec .Computer table tr.FirstRow th {
        position: sticky;
        top: 0;
        z-index: 99;
    }
    #ProductDetail #Spec .Computer table tr th:nth-child(1) {
        position: sticky;
        left: 0;
        background-color: #fff;
        background: -moz-linear-gradient(left, #fff calc(100% - 1px), #ccc calc(100% - 1px), #ccc 100%);
        background: -webkit-linear-gradient(left, #fff calc(100% - 1px), #ccc calc(100% - 1px), #ccc 100%);
        background: linear-gradient(to right, #fff calc(100% - 1px), #ccc calc(100% - 1px), #ccc 100%);
    }
    #ProductDetail #Spec .Computer table tr.SubTitle th:nth-child(1) {
        background: none;
        background-color: #e9eaef;
    }
}