CSS Syntax and Selectors: Building Blocks of Styling

Beginner

✍️ CSS Syntax & Selectors

CSS is written in rulesets that consist of selectors and declaration blocks.

🔍 Selectors

Selectors target specific HTML elements for styling.

🧾 Common Selector Types

  • h1 → Element selector: targets all <h1> tags
  • .classname → Class selector: targets elements with class classname
  • #idname → ID selector: targets a specific element with ID idname
  • div > p, ul li, a:hover → Combinators and pseudo-classes for complex selections

🎨 Declaration Block

Specifies the styles to apply using property-value pairs:

h1 {
  color: blue;
  font-size: 24px;
}

✅ Why Syntax & Selector Mastery Matters

  • 🎯 Enables precise styling
  • 🔄 Reduces style conflicts
  • 💻 Improves code maintainability

Understanding CSS syntax and selectors is key to crafting clean, efficient, and scalable stylesheets.