CSS Tutorial

The language for styling web pages.

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CSS Introduction CSS Syntax CSS Selectors CSS Colors CSS Backgrounds CSS Borders CSS Margins CSS Padding CSS Box Model CSS Text CSS Fonts CSS Display CSS Position CSS Flexbox CSS Grid CSS Transitions CSS Animations CSS Media Queries CSS Variables CSS Gradients CSS Shadows CSS 2D Transforms CSS 3D Transforms CSS Pseudo-classes CSS Pseudo-elements CSS Float CSS Overflow CSS Z-index CSS Opacity CSS Buttons

CSS Z-index

CSS Z-index

The z-index property specifies the stack order of an element (which element is in front of or behind the others). It only works on positioned elements (position: absolute, relative, fixed, or sticky).

Rules:

  • Higher z-index = in front
  • Default z-index is auto (0)
  • Can be negative
  • Only works with position set

Try It Yourself

Edit the code below and click Run to see the result live.

Source Code
Result
Topics
CSS Introduction CSS Syntax CSS Selectors CSS Colors CSS Backgrounds CSS Borders CSS Margins CSS Padding CSS Box Model CSS Text CSS Fonts CSS Display CSS Position CSS Flexbox CSS Grid CSS Transitions CSS Animations CSS Media Queries CSS Variables CSS Gradients CSS Shadows CSS 2D Transforms CSS 3D Transforms CSS Pseudo-classes CSS Pseudo-elements CSS Float CSS Overflow CSS Z-index CSS Opacity CSS Buttons