styles.css

/*! Minimalist Web Notepad | https://github.com/pereorga/minimalist-web-notepad */

body {
    margin: 0;
    background: #ebeef1;
}
.nav {
    margin: 10px 20px;
    font-size: small;
}
.nav a {
    display: inline;
    margin-right: 10px;
    color: grey;
}
.container {
    position: absolute;
    top: 40px;
    right: 20px;
    bottom: 20px;
    left: 20px;
}
#content {
    font-size: 100%;
    margin: 0;
    padding: 20px;
    overflow-y: auto;
    resize: none;
    width: 100%;
    height: 100%;
    min-height: 100%;
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
    border: 1px #ddd solid;
    outline: none;
}
#printable {
    display: none;
}

@media (prefers-color-scheme: dark) {
    body {
        background: #383934;
    }
    #content {
        background: #282923;
        color: #f8f8f2;
        border: 0;
    }
}

@media print {
    .container {
        display: none;
    }
    #printable {
        display: block;
        white-space: pre-wrap;
        word-break: break-word;
    }
}