Simple & Clean design of Calculator using JavaScript

 The Code: <!– Title: Calculator using JavaScript –> <html><head> <!– ————–CSS Properties for Calculator————— –><style type=”text/css”> h2{ text-align:center; color: red; font-size: 22px;} .btn {width: 60px; height:50px;font-weight:bold;font-size: 20px;margin:5px;}#calcuator{    border: 2px solid black;    background: lightblue;    margin: 5px; padding: …