How to make so that when you scroll the mouse wheel
horizonal scrolling websites are a gimmick of css and they only work correct in desktop browsers as a rule.
the steps are;
recalculate the math anytime you make even minor changes to the design and enjoy
And without the knowledge of css, can this be done? In Adobe Muse?
they can be done in any desktop design software so yes to Muse
there may be a widget around that does the css math for you however I don't know of any
There´s a scroll motion possible and you could set it to move from left to right.
Your example has some more features that are not possible out of the box – fullscreen – no matter how tall the browser window in height. Also at the end of the horizontal scroll your example starts to scroll "normal" from top to bottom. That needs some proper coding, I guess.
For horizontal scroll in general watch: Adobe Muse CC Parallax Scrolling Tutorial | Horizontal Scrolling Websites - YouTube