h1{
    color:red;
}

p{
   color:blue ;
}

.box{
    background-color: grey;
   color:rgb(0, 0, 0);
}

#main{
    color:green;
}

.common{
   
    color:white;
    background-color: rgb(70, 0, 136);
}

#unique{
    background-color: aqua;
    color:brown
}

.hex{
color:#0011ff;
}
    
.rgb{
color: rgb(113, 0, 141)
} 

.rgba{
color: rgba(231, 77, 16, 0.5);
}