This is created by using HTML tag. overflow-style The overflow-style property (which we also discussed in the article CSS Overflow) defines the preferred style for contents that overflows the content box. What makes it standalone is its concept still lives on. Do not use this element, instead you can use JavaScript and CSS to create such effects. For creating a marquee using CSS, you have to use the CSS animation property together with the @keyframes rule. It may not work in all browsers. HTML