This is CSS3 animation, that you can use as Technical Problems page, 404 Page, Launch Page or any other page on your site. It comes in 5 modern color themes, I’m sure you’ll be able to choose one for your site. Text is fully editable, as well as background color. I would not recommend to change anything else in CSS file, unless you are very proficient with CSS3 animations.
Download Animated 404 or Maintainance Page: