.container{display:flex;align-items:center;justify-content:center;height:100vh;width:100vw;transition:background-color 1s linear;text-align:center}label{display:block;font-size:4rem}input{font-size:3rem;border-radius:.25rem;padding:.5rem;border:1px solid black;background-color:#ffffff80}h1 span{display:inline-block;background-color:#2ad12a;color:#000;font-size:60%;float:right;margin-top:4px;padding:.25rem 1rem;border-radius:.5rem}