Files
Micah Godbolt 7cea32428e Rewrite of Day 1 to use modern React (#294)
* update to hooks

* more class to function

* cleanup

* finish ts final

* update html lesson

* add lessons page

* clean up

* move getters into context

* adding type

* fix bug

* step 5 cleanup

* init final pass

* text tweak

* fix ternaries

* readme cleanup

* fixed root readme
2022-01-13 09:22:50 -08:00
..

Step 1.2 - Introduction to CSS (Demo)

Demo | Exercise

CSS properties

Now that we've gone over adding HTML tags to the page, let's cover adding styles to those tags. We can do quite a lot with styles! We can change:

  • Typography
  • Colors
  • Appearance (corners, borders, decorations)
  • Layout
  • Position
  • Display format: inline vs block
  • Animations
  • and many more

CSS styles are always written in property: value pairs (like background: blue;) and terminated with a semicolon.

Applying CSS to an HTML file

CSS can be applied to HTML tags in three different ways.

  1. Inline using an HTML tag's style attribute
    • <div style="background: blue; color: white;">Hello </div>
  2. Via a <style> tag in the HTML page
  3. Through an external CSS file
    • <link rel="stylesheet" href="./css-demo-finished.css" />

Targeting specific elements

Inline styles are always applied directly to the element you place them on, but <style> tags and external CSS files need a way to match elements with their respective style sets. This is done with CSS selectors. When selectors are combined with CSS styles, we call this a ruleset.

CSS rulesets take on the following form:

selector1,
selector2 {
  property1: value1;
  property2: value2;
}

Here's a more detailed view from Chris Eppstein:

A selector can be a single tag, class, ID, or attribute. It can also be a combination of those elements.

Bonus: Check out the Vocabs project