As a web content developer, you need to avoid developing high intensity content that blinks, moves, or flickers at a rate range between 2 Hz and 55 Hz because it can cause photosensitive epileptic seizures for susceptible individuals. To avoid this situation and increase accessibility do not use the BLINK or MARQUEE elements to create blinking or flashing content, and create movement using style sheets so the user has the option to turn off the style sheets. Be sure to provide an option on the web page to view the content with movement disabled.