body {
    background: #222;
    color: #eee;

    font-family: sans-serif;
}

p {
    text-align: center;

    margin: 0;
}

h2 {
    text-align: center;

    margin: 10px 0;
}

button {
    display: inline-block;
}

#holder {
    width: 80%;
    margin: auto;
    display: grid;

    grid-template: 1fr / 1fr 1fr
}

#folder {
    width: 80%;
    margin: 10px auto;

    text-align: center;
}

canvas {
    width: 100% !important;
}

select, button {
    background: #4766ff;
    color: #efeff1;

    cursor: pointer;

    font-family: Inter,Roobert,Helvetica Neue,Helvetica,Arial,sans-serif;
    font-weight: 600;
    font-size: 16px;
    padding: 5px 20px;
    border-radius: 0.4rem;
    border: none;

    box-shadow: rgba(0, 0, 0, 0.2) 0 7px 29px 0;

    transition: background 200ms ease 0ms;

    text-align: center;
    margin: 0 5px;
}

button {
    height: 29px;
    transform: translateY(-1px);

    margin: 0;
    background: #5d9057;
}

select > option {
    text-align: left;
}

@media (max-width: 641px) {
    #holder {
        width: 90%;
        grid-template: 1fr / 1fr
    }

    #holder > div {
        height: 300px
    }
}

@media (min-width: 642px) {
    #holder > div {
        min-height: 40vh;
    }
}