انتخاب رنگ دلخواه

#mySidenav a {
position: absolute;
left: -80px;
transition: 0.3s;
padding: 15px;
width: 100px;
text-decoration: none;
font-size: 20px;
color: white;
border-radius: 0 5px 5px 0;
}

#mySidenav a:hover {
left: 0;
}

#about {
top: 20px;
background-color: #4CAF50;
}

#blog {
top: 80px;
background-color: #2196F3;
}

#projects {
top: 140px;
background-color: #f44336;
}

#contact {
top: 200px;
background-color: #555
}