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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 / Visual Utilities

w3-red color

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

12 min read • Intermediate

w3css-017.html

html

<p class="w3-red w3-padding">Critical alert</p>

What to watch

Content source & attribution

Original Syntaxis Content · Original Syntaxis Content

Lesson quizzes

w3-red color Mastery Check →