Create Floating Ads in JavaScript | Step-by-Step Guide

To achieve the left and right floating ad effects in JavaScript, you can follow the steps below:

1. Firstly, create an HTML element containing advertising content, such as a div element, which includes ad images and links.
2. Set the position of the div element to fixed using CSS styles, and adjust the left and right properties to 0 to make it float on both sides of the webpage.
3. Monitor scrolling events in JavaScript code to get the distance the page has scrolled.
4. Dynamically change the position of the advertisement div element based on the distance of page scrolling, so that it can float and follow left and right as the page scrolls.
5. You can enhance the attractiveness of the advertisement by adding some animation effects, such as fade in, fade out, or sliding effects.

By following the above steps, you can achieve a floating left-right couplet advertising effect. As the page scrolls, the ad will always remain on the left and right sides of the page, attracting the user’s attention.