html, body {
    overflow: hidden;
    font-family: 'Open Sans', 'Segoe UI', 'Helvetica Neue', sans-serif;
    background-color: #ffffff;
    margin: 0;
}

body > img {
    filter: drop-shadow(3px 12px 5px #0000004d);
}

#menu {
    position: fixed;
    align-items: center;
    padding: 5px;
    background-color: #d4aa87;
    border-bottom-right-radius: 10px;
    box-shadow: 5px 3px 12px 5px rgba(0, 0, 0, 0.3);
}

.buttons {
    display: flex;
}
input, label, button {
    display: block;
    margin: 6px;
}
input[type="range"] {
    width: 80px;
}
label {
    margin-right: -4px;
}

#menu button {
    display: flex;
    box-sizing: border-box;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: #f1f1f1;
    border: none;
    border-radius: 8px;
}

#menu button:hover {
    border: 3px solid black;
}

#rectangle-mode {
    background-color: #f1f1f190;
}