How to create Always Specify alt, width, and height for Images - HTML Style Guide

Always specify the alt attribute for images. This attribute is important if the image for some reason cannot be displayed.

Also, always define the width and height of images. This reduces flickering, because the browser can reserve space for the image before loading.

 <img src="html5.gif" alt="HTML5" style="width:128px;height:128px">

 <img src="html5.gif">

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