Website layout is a combination of programming languages and an artistic eye for the assembly of elements.
The most recent example of a website where I did a significant portion of the layout is: beeinformed.org.
For this website (my4acres.com), I developed a “child theme” that retains features of a default WordPress install (like being mobile web ready) and adds a custom look and feel. This is often the most effective way to design a WordPress site that will survive future upgrades, or when you simply want work efficiently.
Also important in site layout are the graphics and photos of the site. See the page “Header Art” for more graphics examples.