html,
body {
    height: 100%;
    overflow: hidden;

    font-size: 1vw;
}

body {
    font-family: Arial, Helvetica, sans-serif;
    margin: 0px;
    background: linear-gradient(to left,
            #181B1A,
            #0D0F0F,
            #181B1A);
}

body * {
    color: white;
}

#horizontal-menu-container {
    background-image: url('../export/header-bar.png');
    background-repeat: no-repeat;
    background-size: 100% 100%;
    width: 100%;
    height: 5em;
    text-align: center;
}

#horizontal-menu-container>#website-title {
    width: 10em;
    height: 100%;
    background-image: url('../export/logo.png');
    background-repeat: no-repeat;
    background-position: center;
    background-size: contain;
    margin-right: 10em;
}

#horizontal-menu-container * {
    display: inline-block;
}


#horizontal-menu-container ul>li {
    height: 3em;
    margin: 0px;
    padding-left: 2em;
    padding-right: 2em;
    display: table-cell;
    vertical-align: middle;
    text-align: center;
}


#horizontal-menu-container ul>li a {
    opacity: 0.6;
    display: inline-block;
    text-decoration: none;
    transition: opacity 1s ease-in-out;
    -moz-transition: opacity 1s ease-in-out;
    -webkit-transition: opacity 1s ease-in-out;
}

#horizontal-menu-container ul>li:hover {
    background-image: url('../export/button.png');
    background-size: 100% 100%;
    opacity: 1.0;
    transition: opacity .55s ease-in-out;
    -moz-transition: opacity .55s ease-in-out;
    -webkit-transition: opacity .55s ease-in-out;
}

.parent-container {
    display: flex;
    flex-direction: column;
    height: 100%;
}

.flex-container {
    flex-grow: 1;
    width: 100%;
}

#container {
    position: relative;
    width: 100%;
    height: 100%;

    overflow-x: hidden;
    overflow-y: scroll;
}

#horizontal-bottom-menu-container {
    bottom: 0em;
    width: 100%;
    background-image: url('../export/back-bar.png');
    background-repeat: no-repeat;
    background-size: 100% 100%;
    width: 100%;
    height: 5em;
    text-align: center;

}