.logo {
position:fixed;
top:20px;
left:20px;
z-index:9999;
}
.social-links {
  margin-top: 10px;
  display: flex;
}

.social-links a {
    font-size: 19px;
    display: flex;
    justify-content: center;
    align-items: center;
    background: rgba(0, 0, 0, 0.3);
    color: #fff;
    line-height: 1;
    margin-right: 8px;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    text-decoration: none;
}

.arrow {
    
    display:block;
    position:fixed;
bottom:-5px;
left:20px;
z-index:9999;
}

@media only screen and (max-width : 768px) {
    .arrow {
        display:none;

}
}