header .lng {
    position: relative;
    flex-shrink: 0;
    width: 40px;
    height: 40px;
}

header .lng > div {
    box-sizing: border-box;
    position: absolute;
    top: 0;
    left: 0;
    z-index: 2;
    width: 40px;
    min-height: 40px;
    border-radius: 20px;
    background: #fff;
    border: 1px solid #e2e6eb;
    color: #222;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.02em;
    text-transform: uppercase;
    text-align: center;
    line-height: 40px;
    cursor: pointer;
}

header .lng > div a {
    display: block;
    height: 0;
    overflow: hidden;
    opacity: 0;
    color: #222;
    text-decoration: none;
    transition: height 0.5s ease, opacity 0.3s ease;
}

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