Selectors: Picking What to Style
Target elements based on their attributes and use the universal selector effectively.
Selectors: Picking What to Style is a free CSS Academy lesson on CoddyKit. This is lesson 3 of 3. You can read the complete lesson below for free — then practise it hands-on in the browser with a built-in code editor and a 24/7 AI tutor. It is part of the CSS Academy learning path, and your progress syncs across the web and the CoddyKit app. The CSS Academy course includes 3 lessons in total.
Pick your target
Before styling, you point at what to style. That's a selector's job. This lesson makes it click, I promise. ✨
Like pointing a finger
A selector is just you pointing: "this thing, right here." Simple as that. No memorizing required.
Style by tag
The easiest selector uses a tag name. Write "p" and you select every paragraph on the page at once.
<p>All paragraphs turn red.</p>
Style by class
Want to style just some elements? Give them a class and select it with a dot, like .note. Super flexible!
<p class="note">This note is orange.</p>
Classes are reusable
The best part: one class can be reused on many elements. Style once, apply everywhere. Big time-saver. ⏱️
Style by id
Need one special element? Give it an id and select it with a hash, like #header. An id is meant to be unique.
<h1 id="header">Page Header</h1>
Dot vs hash
Quick memory trick: a dot is for many (class), a hash is for one (id). Tag names use no symbol at all.
Like name tags
Think of classes as group name tags and ids as a single VIP badge. Selectors just read those tags. 🏷️
Mix and match
Real pages combine tags, classes, and ids to style exactly what they want. You now know all three! 🙌
You did it!
You can name what CSS is, read a rule, and pick targets with selectors. That's a real CSS foundation. Proud of you! 🎉
Quick Check
Final check! Which symbol do you use to select a class in CSS?
Learn CSS with an AI tutor — free
Write and run real code in your browser, get instant help from a 24/7 AI tutor, and pick up where you left off on the web or in the app.
- Courses
- 40
- Lessons
- 159
Frequently Asked Questions
Is the “Selectors: Picking What to Style” lesson free?
Yes — the full text of “Selectors: Picking What to Style” is free to read here on the web. To practise it interactively (a built-in code editor and a 24/7 AI tutor) and unlock the rest of the CSS Academy course, upgrade to CoddyKit PRO. The CSS Academy course includes 3 lessons in total.
What will I learn in “Selectors: Picking What to Style”?
Target elements based on their attributes and use the universal selector effectively. You practise CSS Academy with hands-on code you run directly in the browser, and a 24/7 AI tutor answers your questions as you work through the lesson.
Do I need any experience to start CSS Academy?
No prior experience is required. CSS Academy on CoddyKit is structured for beginners through advanced learners, so you can start here or from the beginning and move at your own pace. This is lesson 3 of 3.
How long does the “Selectors: Picking What to Style” lesson take?
Most CoddyKit lessons take about 5–10 minutes. Each one is bite-sized and interactive, so you make steady progress and pick up exactly where you left off across the web and the app.
Can I write and run code in this CSS Academy lesson?
Yes. Every CSS Academy lesson includes a built-in code editor, so you write and run real code right in your browser and get instant AI feedback — no local setup required.
All lessons in this course
- What is CSS?
- How CSS Brings Pages to Life
- Selectors: Picking What to Style