body {
  margin: 10px;
}

blackbg {
  background-color: 10px;
}

.box {
  width:200px;
  height:200px;
  position:relative;
  border-radius:6px;
  margin-top:4px;
  #display:inline-block;
  display:block;
  line-height:50px;
  text-align:center;
  color: #333;  
}

.orange {
  background-color:#f38630;
}

.red{
  background-color: rgb(255,0,0);
  #background-color: hsl(240,100%,50%);
}
.green{
  #background-color:#6fb936;
  background-color: rgb(0,255,0);
}

.blue{
  background-color: rgb(0,0,255);
  #background-color: hsl(240,100%,50%);
}