body{
    margin: 0;
}
.icons{
    width: 70px;
    height: auto;
    position: fixed;
    top: 50%;
    transform: translateY(-50%);

}
.icons>*{
    display: flex;
    align-items: center;
    justify-content: center;
}
a{
    display: block;
    width: 40px;
    height: 40px;
    text-align: center;
    line-height: 40px;
    color: white;
}

a:first-child{
background-color: #3b5999;
text-align: center;
}
a:nth-child(2)
{
    background: #55acee;
}
a:nth-child(3)
{
    background: #cd201f;
}a:last-child
{
    background: #7D3190;
}