:left | CSS Selectors & Pseudo-classes

A selector used inside the @page rule to target the physical 'left' pages of a double-sided printed document.

Quick example

@page :left {
  /* Adds a wider margin to the left (spine) side of the page when printing */
  margin-right: 4cm;
  margin-left: 2cm;
}

Widely available Since 2015 94% global usage

This feature is well established and works across many devices and browser versions. It has been available across browsers since 2015.

Safe to use without fallbacks.

12+