.header {
    background: none;
    border: none;
    margin: 0;
    padding: 1rem;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 9;
    font-size: 1.2rem;
    font-weight: 300;
}

.header__wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header__navigation {
    width: 50%;
    margin-bottom: 0;
}

.header__navigation ul {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-end;
    padding: 0;
    margin: 0;
}

.header__navigation li {
    margin: 0;
    position: relative;
    margin-left: 1rem;
}

.header__navigation li:after {
    display: block;
    background: black;
    content: " ";
    position: absolute;
    width: 24px;
    height: 1px;
    bottom: 0;
    left: 50%;
    margin-left: -12px;
    opacity: 0;
    transform: translateY(8px);
    transition: 150ms ease-in-out all;
}

.header__navigation li.menu__item--current:after {
    opacity: 1;
    transform: translateY(0);
}

body {
    padding-top: 80px;
}