Hello, guys in this tutorial we will create a Products Quantity Counter Using HTML CSS & JavaScript.
First, we need to create two files index.html and style.css then we need to do code for it.
Products Quantity Counter Step:1
Add below code inside index.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<title>Products Quantity Counter</title>
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<meta https-equiv="X-UA-Compatible" content="ie=edge" />
<link rel="stylesheet" href="style.css" />
<link href="https://fonts.googleapis.com/css2?family=IBM+Plex+Sans&display=swap" rel="stylesheet">
</head>
<body>
<div class="counter">
<span class="down" onClick='decreaseCount(event, this)'>-</span>
<input type="text" value="1">
<span class="up" onClick='increaseCount(event, this)'>+</span>
</div>
<script type="text/javascript">
function increaseCount(a, b) {
var input = b.previousElementSibling;
var value = parseInt(input.value, 10);
value = isNaN(value)? 0 : value;
value ++;
input.value = value;
}
function decreaseCount(a, b) {
var input = b.nextElementSibling;
var value = parseInt(input.value, 10);
if (value > 1) {
value = isNaN(value)? 0 : value;
value --;
input.value = value;
}
}
</script>
</body>
</html>Products Quantity Counter Step:2
Then we need to add code for style.css which code i provide in below screen.
* {
padding: 0;
margin: 0;
font-family: 'IBM Plex Sans', sans-serif;
}
body {
width: 100vw;
height: 100vh;
overflow: hidden;
display: flex;
align-items: center;
justify-content: center;
}
.counter {
width: 150px;
margin: auto;
display: flex;
align-items: center;
justify-content: center;
}
.counter input {
width: 50px;
border: 0;
line-height: 30px;
font-size: 20px;
text-align: center;
background: #0052cc;
color: #fff;
appearance: none;
outline: 0;
}
.counter span {
display: block;
font-size: 25px;
padding: 0 10px;
cursor: pointer;
color: #0052cc;
user-select: none;
}