html {
    font-family: 'Source Sans Pro',
    -apple-system,
    BlinkMacSystemFont,
    'Segoe UI',
    Roboto,
    'Helvetica Neue',
    Arial,
    sans-serif;
    font-size: 16px;
    word-spacing: 1px;
    -ms-text-size-adjust: 100%;
    -webkit-text-size-adjust: 100%;
    -moz-osx-font-smoothing: grayscale;
    -webkit-font-smoothing: antialiased;
    box-sizing: border-box;
}

*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
}

.list-group {
    max-height: 700px;
    overflow: scroll;
    -webkit-overflow-scrolling: touch;
}

.nav-scroller {
    position: relative;
    z-index: 2;
    height: 2.75rem;
    overflow-y: hidden;
}

.nav-scroller .nav {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -ms-flex-wrap: nowrap;
    flex-wrap: nowrap;
    padding-bottom: 1rem;
    margin-top: -1px;
    overflow-x: auto;
    color: rgba(255, 255, 255, .75);
    text-align: center;
    white-space: nowrap;
    -webkit-overflow-scrolling: touch;
}

.nav-underline .nav-link {
    padding-top: .75rem;
    padding-bottom: .75rem;
    font-size: .875rem;
    color: var(--secondary);
}

.nav-underline .nav-link:hover {
    color: var(--blue);
}

.nav-underline .active {
    font-weight: 500;
    color: var(--gray-dark);
}

.scroll-to-top {
    position: fixed;
    right: 1rem;
    bottom: 1rem;
    display: none;
    width: 2.75rem;
    height: 2.75rem;
    text-align: center;
    color: #fff;
    background: rgba(90, 92, 105, .5);
    line-height: 46px
}

.scroll-to-top:focus, .scroll-to-top:hover {
    color: #fff
}

.scroll-to-top:hover {
    background: #5a5c69
}

.scroll-to-top i {
    font-weight: 800
}
