What it is

Instead of designing your website on multiple pages, all of the content exists on a long, single page for visitors to scroll through.
A one page website layout is great for sites that only need to share a little bit of information on each topic.
A seven page website with only one paragraph of text on each page may look scant and underdone, but a site set up with seven paragraphs on one page gives a beefier impression.

Why use it

One page sites offer an easy and enjoyable experience for users- all they have to do is simply scroll through a site without clicking around, to find the information they need!
Horizontal background changes can clearly divide the information, allowing visitors to make a conscious transition from one topic to another while scrolling through the site.
These sites also provide more room to get creative and think outside of a standard website setup.
The visit becomes more of a journey instead of a passive experience.