<!DOCTYPE html>
<html>
<head>
<title>Calculator | JavaScript Mini Project</title>
<link rel="stylesheet" type="text/css" href="style.css">
</head>
<body>
<div class="calculator">
<div class="buttons">
<h2 id="value">555</h2>
<span>clear</span>
<span>/</span>
<span>*</span>
<span>7</span>
<span>8</span>
<span>9</span>
<span>-</span>
<span>4</span>
<span>5</span>
<span>6</span>
<span id="plus">+</span>
<span>1</span>
<span>2</span>
<span>3</span>
<span>0</span>
<span>00</span>
<span>.</span>
<span id="equal">=</span>
</div>
</div>
<script>
let buttons = document.querySelector('.buttons');
let btn = document.querySelectorAll('span');
let value = document.getElementById('value');
for(let i=0;i<btn.length;i++){
btn[i].addEventListener("click", function(){
if(this.innerHTML=="="){
value.innerHTML = eval(value.innerHTML);
}else{
if(this.innerHTML=="clear"){
value.innerHTML = "";
}
else{
value.innerHTML += this.innerHTML;
}
}
})
}
</script>
</body>
</html>
*
{
margin: 0;
padding: 0;
box-sizing: border-box;
font-family: consolas;
}
body
{
display: flex;
justify-content: center;
align-items: center;
min-height: 100vh;
background: #edf1f4;
}
.calculator
{
position: relative;
width: 330px;
padding: 20px;
border-radius: 20px;
box-shadow: 15px 15px 20px rgba(0,0,0,0.1),
-15px -15px 20px #fffb;
}
.calculator .buttons
{
position: relative;
display: grid;
}
.calculator .buttons #value
{
position: relative;
grid-column: span 4;
user-select: none;
overflow: none;
width: 100%;
text-align: end;
color: #5166d6;
height: 100px;
line-height: 100px;
box-shadow: inset 5px 5px 10px rgba(0,0,0,0.1),
inset -5px -5px 20px #fff;
border-radius: 10px;
margin-bottom: 12px;
padding: 0 20px;
font-size: 2em;
font-weight: 500;
}
.calculator .buttons span
{
position: relative;
padding: 10px;
box-shadow: 5px 5px 10px rgba(0,0,0,0.1),
inset -5px -5px 20px #fff;
margin: 10px ;
cursor: pointer;
user-select: none;
min-width: 40px;
display: flex;
justify-content: center;
align-items: center;
font-size: 1.2em;
color: #666;
border: 2px solid #edf1f4;
box-shadow: 5px 5px 10px rgba(0,0,0,0.1),
-5px -5px 10px #fff;
border-radius: 10px;
}
.calculator .buttons span:active
{
box-shadow: inset 5px 5px 10px rgba(0,0,0,0.1),
inset -5px -5px 10px #fff;
color: red;
}
.calculator .buttons span#clear:active,
.calculator .buttons span#plus:active,
.calculator .buttons span#equal:active
{
box-shadow: 5px 5px 10px rgba(0,0,0,0.1),
-5px -5px 10px rgba#fff,
inset 5px 5px 10px rgba(0,0,0,0.1);
}
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