Core Code
Core Code Modern Dev Handbook

Reusable Classes

Reusing CSS classes improves maintainability.

Preview

Code

<style>
.btn{
padding:8px 14px;
background:#2563eb;
color:white;
border:none;
}
</style>

<button class="btn">Button</button>
<button class="btn">Another Button</button>

More CSS Optimization Examples (8)

example Group Selectors open example example Use Shorthand Properties open example example Avoid Inline Styles open example example Simpler Selectors open example example Consistent Spacing open example example Use CSS Variables open example example Reduce Duplicate Rules open example example Separate CSS from HTML open example