Core CSS3 Concepts and Styling Techniques Basic Selectors Universal Selector * { margin: 0; padding: 0; } Element Selector div { } p { } ID Selector #uniqueId { } Class Selector .header { } Multiple Classes <element class="class1 class2 class3"> Compound Selector .tooltip.active { }...
Inline Styling Approach Inline CSS is applied directly within HTML elements using the style attribute. Multiple style properties are separated by semicolons. <html> <head> <meta charset="UTF-8"> <title>Document</title> </head> <body> <h1 style=&...
Inclusion MethodsDirect Attribute StylingStyles applied directly to an element via the style attribute. This approach lacks reusability and prevents separation of structure and presentation.<section style="outline: 2px dashed blue; background: lightgreen; width: 150px; height: 150px;">Inline s...
Background Properties background-origin Specifies the positioning area of background images. padding-box: Positions background relative to padding edge (default) border-box: Positions background relative to border edge content-box: Positions background relative to content edge background-clip Define...