I.e. when a website just sticks pure text in <p> in a page, no images, maybe just an <a> for further info. Not HTML5 taking up 2/3s of the page, flashing and jumping about etc.
I am using Firefox with AdBlockPlus (older version that supports the -->), and one extra add-on called "Element Hiding Helper for Adblock Plus" [1]. This extra add-on doesn't block, but merely hides bits and pieces of the page. It mostly use it to cut-out/hide all "Related/Suggested" columns and tables, so when one article loads, I only see that on the page and nothing else.
Incidentally, uBlock origin has this feature built in. uBlock is also better respected than ABP these days I believe, though of course you're free to use whatever addon you prefer.