header {
    background: #000000;
    color: white;
    padding-left: 32px;
    padding-right: 32px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

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

li {
    display: inline-block;
    margin-left: 16px;
    font-size: 18px;
    font-weight: bold;
}

main {
    padding: 32px;
}

html {
    height: 200%;
    line-height: 1.6;
}

.ml-4 {
    margin-left: 1.5rem !important;
}

footer {
    vertical-align: middle;
    font-size: 1rem;
    padding: 10px 20px;
    background-color: #000000;
}