Colorful Square Blocks - HTML Example
<!DOCTYPE html>
<html>
<head>
<title>Color Blocks</title>
<style>
.block {
width: 20px;
height: 20px;
display: inline-block;
margin: 5px;
border-radius: 5px;
}
.red {
background-color: red;
}
.blue {
background-color: blue;
}
.yellow {
background-color: yellow;
}
.green {
background-color: green;
}
</style>
</head>
<body>
<div class='block red'></div>
<div class='block blue'></div>
<div class='block yellow'></div>
<div class='block green'></div>
</body>
</html>
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