#social-links{
    position: fixed;
    z-index: 100;
    top: 50%;
    right: 0;
    transform: translateY(-50%);
    background-color: #2C33B4;
    border-radius: 10px;
    border-top-right-radius: 0;
    border-bottom-right-radius: 0;
    padding: 5px;
}
#social-links a{
    display: block;
    padding: 5px;
    color: #fff;
    text-align: center;
    font-size: 20px;
}

#back_to_top_btn {
    position: fixed;
    z-index: 200;
    right: 50px;
    bottom: 50px;
    padding: 15px 20px;
    background: #2C33B4;
    color: #fff;
    border: none;
    border-radius: 10px;
}