body {
    margin: 0 auto;
    width: 800px;
}

#main-header {
    font-family: sans-serif;
}

#main-section {
    position: relative;
}

#main-section .menu, #main-canvas {
    position: absolute;
}

.menu {
    background-color: white;
    width: 600px;
    height: 400px;
    top: 100px;
    left: 100px;
}

.menu-page {
    display: none;
    margin: 100px;
}

.menu-heading {
    text-align: center;
    font-family: sans-serif;
    font-size: 32px;
}

.menu-button-container {
    display: flex;
    flex-direction: row;
}

.menu-button {
    font-family: sans-serif;
    font-size: 16px;
    background-color: #DFDFDF;
    border-radius: 5px;
    width: 200px;
    height: 64px;
    margin: 30px 10px;
}

.horizontal-list-heading {
    margin: 0;
}

.horizontal-list {
    display: flex;
    flex-direction: row;
    list-style: none;
    margin: 0;
    padding: 0;
}

.clickable {
    color: darkslateblue;
    text-decoration: underline;
    cursor: pointer;
    margin: 5px 20px 5px 0px;
}