app.css

body {
    margin: 0;
    padding: 0;
    background-color: white;
    display: flex;
    justify-content: center;
    padding: 2rem 0 0 0;
    background-color: black;
}

.container {
    width: 900px;
}

@font-face {
    font-family: 'silkscreenNormal';
    src: url('fonts/slkscr-webfont.woff2') format('woff2'),
         url('fonts/slkscr-webfont.woff') format('woff');
    font-weight: normal;
    font-style: normal;
}

@font-face {
    font-family: 'silkscreenBold';
    src: url('fonts/slkscrb-webfont.woff2') format('woff2'),
         url('fonts/slkscrb-webfont.woff') format('woff');
    font-weight: normal;
    font-style: normal;
}

header {
    height: 10vh;
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: black;
    color: white;
    font-size: 4rem;
    font-family: silkscreenBold;
}

nav {
    background-color: #000000;
    padding: 0 0 0 2.8rem;
}

nav button {
    padding: 0.8rem 1rem 0.8rem 1rem;
    margin: 0 1rem 0 0;
    border: solid;
    background-color: #000000;
    color: white;
    font-size: 1.5rem;
    font-family: silkscreenNormal;
}

nav button:hover {
    background-color: #222222;
}

.mainArea {
    width: 100%;
    display: flex;
    justify-content: center;
    background-color: black;
    padding: 1rem 0 1rem 0;
}

.canvas {
    border: white solid 5px;
    display: flex;
}