unibutton/index.css

:root {
    font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    color: rgb(44, 41, 53);
}

section {
    max-width: 90vw;
    width: 800px;
    margin-left: auto;
    margin-right: auto;
    background: rgb(255, 255, 255);
    border: solid rgb(200, 200, 200) 2px;
    border-radius: 10px;
    min-height: 500px;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    text-align: center;
    margin: 10px;
    margin-bottom: 0;
    height: 40px;
    line-height: 40px;
}

p {
    margin: 10px;
}


.message {
    position: relative;
    margin-bottom: -768px;
    bottom: 768px;

    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;

    background: rgba(0, 0, 0, 0.5);
}

.message span {
    display: block;
    text-align: center;
    color: rgb(255, 255, 255);
    font-weight: bold;
    font-size: 50px;
}

.ui-text {
    white-space: pre-wrap;
    font-weight: bold;
    padding: 10px;
}

#canvas, .message {
    width: 768px;
    height: 768px;
    /*image-rendering: pixelated;*/
    background: rgb(63, 63, 71);
}

section#main {
    width: 1024px;
}

@media (max-width: 1920px) {
    #canvas, .message {
        width: min(512px, 90vw);
        height: min(512px, 90vw);
    }

    .message {
        margin-bottom: min(512px, 90vw);
        bottom: min(512px, 90vw);
    }
}