//**********JQUERY********** <script> let dis = document . getElementById ( 'outputscreen' ); const wipe = () => { dis . value = "" ; } const display = ( n ) => { dis . value += n ; } const calculate = () => { dis . value = eval ( dis . value ); } </script> //***********style************** *{ margin: 0; padding: 0; box-sizing: border-box; background-color: #ecf0f3; font-family: sans-serif; outline: none; } .cointainer{ height: 100vh; display: flex; justify-content: center; align-items: center } .calculator{ background-color: #ecf0f3; padding: 15px; border-radius:30px; box-shadow: inset 5px 5px 12px #ffffff, 5px 5px 12px rgba(0,0,0,.16); display: grid; grid-template-columns: repeat(4,68px); } input{ grid-column: span 4; height: 70px; width: 260px; background-colo