#body {
    font-family: Arial, Helvetica, 'sans-serif';
    font-size: 16px;
    background-color: #808080;
    padding-top: 0px;
}
/*--------------------------------------*/
/* nav                                  */
/*--------------------------------------*/
#nav nav.navbar {
    display: block;
    width: 100%;
    height: 50px;
    overflow:  hidden;
    margin: 0 auto;
    padding: 0;
    font-size: 1.2em;
    background: #000;
}
#nav .container {
    width: 100%;
    padding: 0;
    margin: 0;
}
#nav .navbar-collapse {
    text-align: center;
    width: 100%;
}
/* override collapse */
.navbar-collapse.collapse {
    display: block!important;
}
#nav .nav-pills {
    margin-left: auto;
    margin-right: auto;
    width: 800px;
    display: flex;
    justify-content: space-around;
}
.nav_item {
    display: inline-block;
    text-align: center;
    margin: 0 0;
}
#nav li.active {
    background: #3278B3;
}
#nav li.active a {
    color: #FFF;
    font-weight: bold;
}
/* nav text is now white on a black background */
#nav li a {
    color: #FFF;
}
/* Override Bootstrap */
#nav li a:hover, #nav li a:focus {
    background-color: unset;
}
#nav .active {
    color: #FFF;
    font-weight: bold;
}
/*--------------------------------------*/
/* #main_div                            */
/* contains:                            */
/*   #header                            */
/*   #content                           */
/*   #footer                            */
/*--------------------------------------*/
#main_div {
    /* This width must be the same as in this.setConfig */
    width: 800px;
    margin: 0 auto;
    padding: 0;
}
/* Override Bootstrap */
#main_div a {
    padding: 0 0;
}
/*--------------------------------------*/
/* header                               */
/*--------------------------------------*/
#body header {
    width: 100%;
    height: 50px;
    overflow: hidden;
    margin: 40px auto 0px auto;
    background: #FFF;
    border: 1px solid black;
    border-radius: 0 0 5px 5px;
}
#header h1 {
    font-size: 1.6em;
    text-align: center;
    margin: 0;
    padding: 10px 0;
    /*background: #fff4cc;*/
    background: goldenrod;
    color: white;
    background: #920010;
}
#header h2 {
    font-size: 1.4em;
    text-align: center;
    margin: 0;
    padding: 5px 0;
}
#header h3 {
    font-size: 1.2em;
    text-align: center;
    font-style: italic;
    margin: 0;
    padding: 5px 0;
}
#body .italic {
    font-style: italic;
}
#body .bold {
    font-weight: bold;
}
#body .normal_weight {
    font-weight: normal;
}
/*--------------------------------------*/
/* #content                             */
/*--------------------------------------*/
#content {
    width: 100%;
    margin: 90px auto 0 auto;
    padding: 0;
    display: block;
    padding: 0 0;
}
#content div img {
    width: 100%;
    margin: 0 auto;
    pointer-events: none;
}
#content iframe {
    width: 100%;
    height: 100%;
}
#fullscreen {
    position: absolute;
    top: 95px;
    right: 5px;
    width: 20px;
    height: 20px;
    background-image: url('../images/fullscreen.png');
    background-size: cover;
}
#2, #3, #4, #5, #6, #7, #8, #9, #10, #11, #12 {
    display: none;
}

.shadow {
    color: white;
    letter-spacing: 2px;
    text-shadow:
        0px 4px 3px rgba(0,0,0,0.6),
        0px 8px 13px rgba(0,0,0,0.4),
        0px 18px 23px rgba(0,0,0,0.2);
}

/*--------------------------------------*/
/* small screens like phones            */
/*--------------------------------------*/
@media (max-width: 768px) {
    #nav nav.navbar {
        height: 25px;
        font-size: 0.8em;
    }
    #body header {
        height: 20px;
        margin: 20px auto 0px auto;
    }
    #header h1 {
        font-size: 1.0em;
        padding: 2px 0;
    }
    #nav ul.nav.nav-pills {
        width: 100%;
    }
    #nav .nav > li > a {
        position: relative;
        display: block;
        padding: 2px 5px;
    }
    #nav .navbar {
        min-height: 40px;
    }
    #body #content {
        margin-top: 40px;
    }
    #fullscreen {
        top: 40px;
    }
}