jsfiddle generally used for sharing, saving, and embedding HTML, CSS, and JavaScript snippets.
jsfiddle allows us to add code snippets within the web pages and you can customize the look and feel of the code snippet like – changing the visual theme, font color, code background, menu background.
jsfiddle shows JavaScript, HTML, CSS, and Result tabs by default. You can remove some of its tabs if their no use of it by check and uncheck the checkbox follow by the tab name.
For example, if you are making a code snippet in which you have only used the HTML and CSS section and not done any JavaScript work, in that case, there is no need to display the JavaScript tab on your web page.