#container div {
 height: 200px;
 width: 200px;
 border-radius: 50%;
 margin: auto;
 margin-bottom: 10px; 
}
#red-box {
background: #c70615;
}
#yellow-box {
  background: #f4e407;
}
#orange-box {
 background: #f9aa04;
}
#green-box {
background: #0d9106;
}
#blue-box {
background: #0d3acd;
}
#violet-box {
background: #7805ab;
}