css

colors {
    --white:      #c8d6e5;
    --lightGray:  #8395a7;
    --darkGray:   #3e3e4f;
    --darkerGray: #373542;
    --black:      #221111;

    --darkRed:    #8e3333;
    --red:        #c0392b;
    --redWhite:   #bb7777;
    --yellow:     #dede6c;
}

* {
    display: block;
}

body {
    background-color: white;
}

header {
    position: relative;

    /* content: "My Shop"; */
    /* background: url(myLogo.nfp); */
    /* background-position: center; */
    /* Content and Background (Images) are mutually exclusive, with content taking precedence if both are present */

    background-color: white;

    width: 100%;
    padding: 1px;

    color: black;
    text-align: center;
    text-transform: uppercase;

    font-size: 2em; /* Either 1em or 2em, no other sizes are currently supported */
}

aside {
    position: relative;
    right: 0;

    /* Since `top` (and bottom) are omitted here, it will be positioned relative to the last positioned element,
        which is exactly where we want it to be.. */

    width: 100%;
    height: 100rem; /* In Xenon CSS, rem doesn't stand for Root Em, it stands for Remaining space, so this is 100% of the remaining space */

    text-align: left;
    padding: 1px;

    background-color: transparent;
    color: black;
}

table {
    position: relative;

    background-color: white;

    width: calc(100% - 2px);
    height: calc(100rem - 4px); /* See note under aside height */

    top: 1px;
    left: 1px;
}

td {
    color: black;
    padding: 0 1px 0 0;
}

.stock, .price {
    text-align: right;
}

.stock {
    color: black;
    width: 7px;
}

.stock.low {
    color: yellow;
}

.stock.critical {
    color: red;
}

.name {
    flex: 1; /* tr elements implicitly have flex-box like behavior, it is the only element that (currently) supports this feature */
}

.price-container, .price {
    text-align: right;
    width: 10px;
}

.addy-full, .addy {
    color: black;
    width: 15px;
}

thead tr {
    margin-bottom: 1px;
    background-color: black;
}

tbody tr {
    line-height: 3px;
    background-color: darkGray;
}

tr:nth-child(2n) {
    background-color: darkerGray;
}

th {
    color: black;
    padding: 1px 1px 1px 0;
}

details {
    position: absolute;
    left: 0;
    bottom: 0;

    background-color: transparent;
    color: black;

    text-align: right;

    width: 100%;
    height: 1px;
}