Mastering CSS Selectors: Core Concepts, Pseudo-Elements, and Pseudo-Classes
Fundamental Selectors
Type and Universal Selectors
/* Targets all <div> elements */
.container-box {
color: #2c3e50;
background-color: #ecf0f1;
}
/* The universal selector applies styles to every element */
* {
margin: 0;
padding: 0;
box-sizing: border-box;
}
Attribute Selectors
Attribute selectors filter elements ba ...
Posted on Tue, 30 Jun 2026 17:21:46 +0000 by gammaster
CSS Structural Pseudo-Classes, Pseudo-Elements, and Box Model Layout
Targeting Elements via Document Structure
Structural pseudo-classes allow developers to select elements based on their position within the DOM tree, eliminating the need for manual class assignments on every item.
Selector
Behavior
E:first-child
Targets the first instance of E within its parenet container.
E:last-child
Targets the fina ...
Posted on Thu, 14 May 2026 14:20:34 +0000 by senorpuerco
CSS Selectors Practical Examples and Usage Patterns
Attribute Selector Example
To target a span element with a specific title attribute value:
const targetElement = document.querySelector("#sale-card .next-cascader-menu li span[title='honor/荣耀']");
if (targetElement) {
targetElement.click();
}
Pseudo-class Selectors
CSS pseudo-classes for targeting elements based on their position ...
Posted on Thu, 07 May 2026 06:38:25 +0000 by rotto