.border-1{
    border-radius:1em;
}
.border-2{
    border-radius:2em;
}
.border-3{
    border-top-left-radius:2em;
}
.border-4{
    border-radius:1em 2em 3em 4em;
}

.circle-1{
    width: 20rem;
    line-height: 20rem;
    border-radius: 50%;    
    text-align:center;
    padding:0;
    
}

.circle-2{
    width: 20rem;
    line-height: 20rem;
    border-radius: 50%;    
    text-align:center;
    padding:0;
    border-top:10rem solid #ff00d7;
    border-left:10rem solid  #ff8bf6;
    border-bottom:10rem solid purple;
    border-right:10rem solid #d16bff;
    
}