a.circleBtn {
    display: inline-block;
    min-height: 29px;
    min-width: 29px;
    line-height: 29px;
    border-radius: 29px;
    border: 2px solid #333;
    text-align: center;
    font-family: "Source Sans Pro", sans-serif;
    font-size: 14px;
    font-weight: 700;
    margin-left: 20px;
    text-decoration: none;
    color: #fff;
    position: relative;
    transition: color 0.3s;
}

a.circleBtn:hover {
    color: #ffd200;
    text-decoration: none;
}

.language-name {
    display: none;
    position: absolute;
    bottom: -30px;
    left: 50%;
    transform: translateX(-50%);
    background-color: #333;
    color: #fff;
    padding: 4px 8px;
    border-radius: 4px;
    opacity: 0;
    transition: opacity 0.3s;
}

a.circleBtn:hover + .language-name {
    display: inline-block;
    opacity: 1;
}

a.circleBtn.active, .language-name.active {
    color: #ffd200;
}