CSS Selectors
4 min read
What is CSS Selectors?
CSS selectors are patterns used to select the elements you want to style. The most common selectors are element selectors (p), class selectors (.classname), and ID selectors (#idname).
Syntax & Usage
The syntax and usage patterns for CSS Selectors follow standard CSS conventions. Below you will see code examples that demonstrate the most common use cases. Try modifying these examples in your own editor to experiment with different approaches.
Example
Here is a practical example demonstrating CSS Selectors:
Tips & Best Practices
- Use a CSS reset or normalize stylesheet for cross-browser consistency
- Prefer classes over IDs for styling (lower specificity is easier to manage)
- Use CSS variables for consistent theming
- Mobile-first approach: start with mobile styles, then add breakpoints for larger screens
Summary
In this lesson you learned about CSS Selectors. Practice writing code to reinforce these concepts and move on to the next lesson when you feel comfortable.
Examples
css
/* Element selector */
p { color: blue; }
/* Class selector */
.highlight { background: yellow; }
/* ID selector */
#header { font-size: 24px; }
/* Descendant selector */
nav a { text-decoration: none; }
/* Pseudo-class */
a:hover { color: red; }