style.css

* {
    font-family: 'Montserrat', sans-serif;
}

body {
    background-color: rgb(138, 138, 138);
}

h2 {
    margin-top: 0;
}

#title {
    margin-top: 70px;
    font-weight: bold;
}

#nav-bar {
    z-index: 2;
    position: absolute;
    left: 50%;
    top: 50%;
    -webkit-transform: translate(-50%, -50%);
    transform: translate(-50%, -50%);
    background-color: rgb(255, 255, 255);
    width: 500px;
    height: 190px;
    padding: 30px;
}

.create-panel {
    width: 150px;
    height: 100px;
}

button {
    width: 150px;
    height: 30px;
    border: 0px;
    background-color: rgb(67, 107, 176);
    margin-top: 10px;
    margin-left: 0px;
}

.sadden {
    background-color: rgb(67, 107, 176);
    color: black;
    cursor: default;
}

.unsadden {
    background-color: rgba(93, 152, 255);
    color: white;
    cursor: pointer;
}

#start-game, #copy-button {
    background-color: rgba(93, 152, 255);
    color: white;
}

#copy-button {
    height: 20px;
    margin-bottom: 10px;
}

canvas {
    border: 1px solid black;
}

#centered {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

input, label {
    margin: 0;
    cursor: pointer;
}