03 - CSS Variables/index.html

<!DOCTYPE html>
<html lang="en">

<head>
	<meta charset="UTF-8">
	<title>Scoped CSS Variables and JS</title>
</head>

<body>
	<h2>Update CSS Variables with <span class='hl'>JS</span></h2>

	<div class="controls">
		<label for="spacing">Spacing:</label>
		<input type="range" name="spacing" min="10" max="200" value="10" data-sizing="px">

		<label for="blur">Blur:</label>
		<input type="range" name="blur" min="0" max="25" value="10" data-sizing="px">

		<label for="base">Base Color</label>
		<input type="color" name="base" value="#ffc600">
	</div>

	<img src="./Death_to_stock_BMX1_10.jpg">

	<style>

    
    :root {
      --spacing: 10px;
      --blur: 10px;
      --base: white;
    }

    body {
      text-align: center;
    }

    body {
      background: #193549;
      color: white;
      font-family: 'helvetica neue', sans-serif;
      font-weight: 100;
      font-size: 50px;
    }

    .controls {
      margin-bottom: 50px;
    }

    input {
      width:100px;
    }
    img {
      width: 95%;
      max-width: 900px;
      height: auto;
      background-color: var(--base);
      padding: var(--spacing);
      filter: blur(var(--blur));
    }

    .hl {
      color: var(--base);
    }
  </style>

<script>
	// Reutrns a listNode, it is a atypeof an array with less functionality
	const inputs = document.querySelectorAll('.controls input');

	function handleUpdate() {
		const data = this.value,
			suffix = this.dataset.sizing || '',
			type = this.name;

		document.documentElement.style.setProperty(`--${type}`, data + suffix);
	}
	
	inputs.forEach(input => input.addEventListener('change', handleUpdate));
</script>

</body>

</html>