body{background-color:#8f90cc;display:flex;align-items:center;justify-content:center;height:100vh}#calculator{display:flex;align-items:center;justify-content:center;width:298px;height:462px;flex-wrap:wrap;background-color:#000;border-radius:15px;border:5px solid rgba(113,113,117,.733);padding-bottom:12px}#container{display:flex;align-items:center;justify-content:center;width:400px;height:500px}.buttons{display:flex;height:62px;width:63px;background-color:#4942426e;margin:3px;border-radius:10%;color:#f0ffffab;justify-content:center;align-items:center;font-size:23px;font-family:Franklin Gothic Medium,Arial Narrow,Arial,sans-serif;outline:none;border:none}.buttons:active{transform:scale(.9)}#clear{width:130px}#equals,#zero{width:132px}#display{background-color:#d5d5d8dc;color:#000000e1;margin-bottom:10px;margin-top:8px;border-radius:5px;text-align:right;font-size:25px}#expression{width:270px;height:34px;text-align:right;font-size:25px}#answer{width:270px;height:43px;text-align:right;font-size:33px}h4{display:flex;align-items:center;justify-content:center;margin:0;padding:0;color:#072d36}