h1{color:green}.xyz{background-size:auto;text-align:center;padding-top:100px}.btn-circle.btn-sm{width:30px;height:30px;padding:6px 0;border-radius:15px;font-size:8px;text-align:center}.btn-circle.btn-md{width:50px;height:50px;padding:7px 10px;border-radius:25px;font-size:10px;text-align:center}.btn-circle.btn-xl{width:70px;height:70px;padding:10px 16px;border-radius:35px;font-size:12px;text-align:center}