Master programming syntax, solve interactive challenges & run live code in Syntaxis Explore Arena →

menu_book Course Curriculum (W3.CSS) expand_more

Core Classes

w3-container w3-panel w3-card w3-button w3-bar w3-badge w3-tag w3-table

Layout

w3-row w3-col w3-half w3-third w3-rest w3-content w3-auto w3-cell

Visual Utilities

w3-red color w3-hover-color w3-border w3-round w3-shadow w3-padding w3-margin w3-opacity

Components

w3-modal w3-dropdown-hover w3-sidebar w3-responsive table w3-display-container w3-progressbar pattern w3-mobile w3-hide-small

W3.CSS / Layout

w3-rest

Learn w3-rest in W3.CSS with a focused explanation, a topic-specific example, and a mastery check.

12 min read • Beginner

w3css-013.html

html

<div class="w3-row"><aside class="w3-col" style="width:180px">Menu</aside><main class="w3-rest">Flexible remaining width</main></div>

What to watch

Content source & attribution

Original Syntaxis Content · Original Syntaxis Content

Lesson quizzes

w3-rest Mastery Check →