:root {
    --border: 1px solid #E8E8E8;
    --sidebar-padding: 20px;
    --sidebar-width: 300px;
}

body {
    font-family: "Courier New", "Courier", monospace;
    margin: 0;
    overflow: hidden;
}

h1 {
    border-bottom: var(--border);
    margin-bottom: 0;
    margin-top: 12px;
    padding-bottom: 12px;
    font-size: 1.75em;
    text-align: center;
}

h2 {
    border-bottom: 1px solid #b4b4b4;
    font-size: 1.25em;
    margin-bottom: 0;
}

iframe {
    border: none;
    box-sizing: border-box;
    height: 100%;
    width: 100%;
}

#iframe-parent {
    border: none;
    box-sizing: border-box;
    height: 100%;
    padding-left: var(--sidebar-width);
    transition: padding-left 1s;
    width: 100%;
}

#example-code-link {
    position: fixed;
    bottom: 16px;
    right: 16px;
    padding: 12px;
    border-radius: 50%;
    margin-bottom: 0px;
    background-color: #FFF;
    opacity: .9;
    z-index: 999;
    box-shadow: 0 0 4px rgba(0, 0, 0, .15);
}

#sidebar-slider-button {
    border: none;
    border-radius: 0 6px 6px 0;
    cursor: pointer;
    display: none;
    height: 50px;
    margin-left: -1px;
    padding: 0;
    position: absolute;
    top: calc(50% - 25px);
    width: 12px;
    z-index: 100;
}

#sidebar-slider-button:hover {
    background-color: #e6e6e6;
}

.sidebar {
    box-sizing: border-box;
    border-right: 1px solid #E8E8E8;
    display: flex;
    flex-direction: column;
    height: 100%;
    left: 0px;
    overflow: auto;
    position: fixed;
    transition: width 1s;
    width: var(--sidebar-width);
    z-index: 100;
}

.github-link, .github-link:visited {
    align-items: center;
    background-color: black;
    border-radius: 16px;
    box-shadow: 1px 1px 3px rgba(0,0,0,0.8);
    color: white;
    display: flex;
    font-size: 24px;
    height: 32px;
    padding-left: 8px;
    text-decoration: none;
}

.sidebar-list {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 12px var(--sidebar-padding) var(--sidebar-padding) var(--sidebar-padding);
}

.sidebar ul {
    list-style-type: none;
    margin-top: 10px;
    padding-left: 0;
}
.sidebar li {
    font-size: 1.1em;
    padding: 4px 10px;
    margin: 10px 0;
    border-radius: 3px;
}

.sidebar li:hover {
    color: blue;
    cursor: pointer;
    background-color: #e6e6e6;
}

.sidebar li.selected {
    background-color: black;
    color: white;
}

@media only screen and (max-width: 800px) {
    #iframe-parent {
        padding-left: 0;
    }

    #iframe-parent.compress {
        padding-left: var(--sidebar-width);
    }

    #sidebar-slider-button {
        display: block;
    }

    .sidebar {
        width: 0;
    }

    #sidebar.open {
        width: var(--sidebar-width);
    }
}