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Fade-In Notification Banner

Explore how to develop a fade-in effect for a notification banner using only CSS. Learn to set initial opacity, define keyframes for animation, and apply animation properties to create smooth transitions. This lesson empowers you to enhance UI elements with engaging visual effects without JavaScript.

Problem description

Given an HTML page containing a <div class="notification-banner"> element, write CSS to:

  • Set its initial opacity to 0. ...