html {
    scroll-behavior: smooth;
}

div.banner {
    height: auto;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 10rem;
    background-color: #3487C9;
    margin-bottom: 2rem;
    text-align: center;
    padding: 2rem;
}

#title, #subtitle, #subtitle a {
    color: white;
}

#title {
    padding-bottom: 1rem;
    border-bottom: 2px solid white;
}

.index-menu {
    height: auto;
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 1rem;
}

.index-box {
    padding-top: .25rem;
    padding-bottom: .25rem;
}

.link-index {
    padding: 0 .25rem;
    color: var(--color-secondary);
}

.index-letter {
    font-size: 1.5rem;
    font-weight: 800;
    border-left: 4px solid rgb(53, 134, 202);
    padding-left: 1rem;
    color: rgb(66, 66, 66);
}

ul {
    list-style: initial;
    padding: .25rem;
}

ul li {
    margin-left: 1.5rem;
    padding: .25rem 1rem;
    display: list-item;
}

ul.list-index-letter {
    list-style: none;
}

ul.list-index-letter li {
    display: inline-block;
    padding: 0;
    margin: 0;
}