body{width:300px;margin:0 auto;font-family:serif;background-color:beige}button{background-color:#add8e6;border-radius:25px;width:50px;height:50px;font-size:30px;text-align:center;margin:5px}.numpad-container{display:grid;grid-template-columns:auto auto}.numbers-container{display:grid;grid-template-columns:auto auto auto}.operations-container{display:grid;grid-template-columns:auto}.equal-container button{width:200px}.calculate-container{background-color:#fff;padding-left:2%}