body, html{
        margin: 0; padding: 0; height: 100%;
    }
    #heading{
        text-align: center;
        margin: auto;
        height: 176px;
        width: 100%;
        border-bottom: 2px solid #3a1;
    }
    #headingNavBar{
        width: max-content;
        margin: auto;
    }
    #heading_image{
        width: 400px;
    }
    #navbarList{
        padding: 0;
        width: max-content;
        height: 40px;
    }
    .nbl{
        list-style-type: none;
        float: left;
        width: 150px;
        text-align: center;
        padding-bottom: 8px;
    }

    #content{
        width: 1400px;
        margin-left: auto;
        margin-right: auto;
    }
    #c_s1_img{
        float: right;
        width: 420px;
        border: 3px solid #3a1;
    }