html {
    height: 100%;
}
body {
    font-family: Verdana;
    font-size: 1.2em;
    height: 100vh;
    margin: 0;
    background-repeat: no-repeat;
    background-attachment: fixed;
}
.container {
    display: flex;
}
.sidebar {
    float: left;
    width: 20%;
    position: relative;
    background-color: #a1cdf3;
    padding: 5px;
    border: solid black 1px;
    border-radius: 10px;
    margin-top: 2ch;
    margin-left: 3%;
}
.sidebar_item {
    font-family: Terminus;
    font-size: 1.3em;
    padding: 10px;
    cursor: pointer;
    margin-bottom: 5px;
    text-decoration: underline;
}
.main {
    flex: 1;
    position: relative;
    float: right;
    width: 70%;
    margin-left: 3%;
    margin-right: 3%;
    margin-top: 2ch;
    margin-bottom: 2ch;
}
.collapsible_section {
    display: none;
    background-color: #bce2f8;
    padding: 2ch;
    border: solid black 1px;
    border-radius: 10px;
}
.collapsible_section.active {
    display: block;
}
#go_home {
    margin-left: auto;
    margin-right: auto;
    margin-top: 2ch;
    background: url(mz_media/go_home.png);
    width: 159px;
    height: 63px;
}
#go_home:hover {
    background: url(mz_media/go_home_active.png);
}
#sidings {
    width: 100%;
    padding: 1px 60px;
    margin-left: auto;
    margin-right: auto;
    box-shadow: 0px 50px 50px rgba(127, 179, 236, 0.9) inset;
    background: url(mz_media/side_right.png) repeat-y right top, url(mz_media/side_left.png) repeat-y left top;
}
.section_title {
    font-family: Terminus;
    font-size: 1.6em;
    text-align: center;
    text-decoration: underline overline;
}
img {
    max-width: 70%;
    max-height: auto;
    border: solid black 2px;
    border-radius: 10px;
    left: 50%;
    transform: translateX(-50%);
    position: relative;
}