styles.css

body {
    padding: 0;
    margin: 0;
}

ul {
    list-style-type: none;
    margin: 0;
    padding: 0;
}

li {
    display: flex;
}

a {
    margin: 0;
    padding: 0;
    text-decoration: none;
    font-size: medium;
    font-family: sans-serif;
}

h1 {
    font-family: sans-serif;
    font-size: xx-large;
}

h2 {
    font-family: sans-serif;
    font-size: x-large;
}

table {
    table-layout: fixed;
    width: 100%;
    border-collapse: collapse;
    text-align: left;
}

tbody tr:nth-child(even) {
    background-color: snow;
}

td {
    padding: 0.25em 0em;
}

td:first-child, th:first-child {
    padding-left: 1em;
}

td > a {
    color: darkslategray;
}

th {
    background-color: snow;
    font-family: sans-serif;
    font-weight: bold;
    border-bottom: solid;
    border-width: thin;
    padding-top: 1em;
}

.grid {
    display: grid;
    grid-template-columns: 16em auto
}

.header {
    grid-column: 1 / span 2;
    background-color: cornflowerblue;
    padding: 20px;
}

.header h1 {
    margin: auto;
    color: azure;
}

.sideBar {
    background-color: lavender;
    padding: 20px 0px;
}

.sideBar i {
    margin: 0;
    padding: 0;
    text-decoration: none;
    font-size: medium;
    font-family: sans-serif;
}

div.sideBar a {
    color: cornflowerblue;
    padding: 10px 0px 10px 20px;
    display: block;
    font-weight: bolder;
}

div.sideBar i {
    color: cornflowerblue;
    padding: 10px 0px 10px 20px;
    display: block;
    font-style: normal;
}

.content {
    background-color: whitesmoke;
    padding: 20px;
}

content h2 {
    background-color: cornflowerblue;
    margin: 0;
    padding: 0;
}