header .lng {
    width: 40px;
    height: 40px;

    padding: 5px 15px;

    color: #FFF;
    text-align: center;
    line-height: 40px;
    font-family: sans-serif;
    font-size: 14px;
    letter-spacing: 1px;
    cursor: pointer;
    text-transform: uppercase;

    display: inline-block;
    vertical-align: middle;
}

header .lng > div {
    position: absolute;
    z-index: 1;
    width: 40px;
    min-height: 40px;
}

header .lng > div::after {
    content: '';
    position: absolute;
    top: 18px;
    right: -4px;
    width: 6px;
    height: 7px;
    background-color: #FFF;
    clip-path: polygon(0% 0%, 100% 0%, 50% 50%);
}

header .lng > div a {
    display: block;
    height: 0;
    overflow: hidden;
    opacity: 0;
    color: #FFF;
    text-decoration: none;
    transition: height .5s ease, opacity 1s ease;
}

header .lng > div:hover a,
header .lng > div:focus-within a  {
    height: 40px;
    opacity: 1;
}

@media (max-width: 960px) {
    header .lng {
        padding: 5px 15px;
    }
}