body{background:#2c3e50}#app{font-family:Avenir,Helvetica,Arial,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-align:center;color:#fff;margin-top:60px;display:flex;align-items:flex-start;justify-content:space-evenly}input{font-size:32px;width:50px;height:50px;border:none;margin:5px;display:flex;align-items:center;justify-content:center;background-color:#d3d3d3;text-align:center}.first,.second,.third{display:flex;justify-content:center}.x{background-color:#d3d3d3}.i{background-color:#ffff62}.m{background-color:#52c452}button{font-size:32px;width:50px;border:none;margin:5px;display:flex;align-items:center;justify-content:center}ol li{text-align:left}