Firefox's "Delete Node" eliminates pesky content-hiding banners (Shallow Thoughts)

Akkana's Musings on Open Source Computing and Technology, Science, and Nature.

Mon, 02 Jan 2017

Firefox's "Delete Node" eliminates pesky content-hiding banners

It's trendy among web designers today -- the kind who care more about showing ads than about the people reading their pages -- to use fixed banner elements that hide part of the page. In other words, you have a header, some content, and maybe a footer; and when you scroll the content to get to the next page, the header and footer stay in place, meaning that you can only read the few lines sandwiched in between them. But at least you can see the name of the site no matter how far you scroll down in the article! Wouldn't want to forget the site name!

Worse, many of these sites don't scroll properly. If you Page Down, the content moves a full page up, which means that the top of the new page is now hidden under that fixed banner and you have to scroll back up a few lines to continue reading where you left off. David Pogue wrote about that problem recently and it got a lot of play when Slashdot picked it up: These 18 big websites fail the space-bar scrolling test.

It's a little too bad he concentrated on the spacebar. Certainly it's good to point out that hitting the spacebar scrolls down -- I was flabbergasted to read the Slashdot discussion and discover that lots of people didn't already know that, since it's been my most common way of paging since browsers were invented. (Shift-space does a Page Up.) But the Slashdot discussion then veered off into a chorus of "I've never used the spacebar to scroll so why should anyone else care?", when the issue has nothing to do with the spacebar: the issue is that Page Down doesn't work right, whichever key you use to trigger that page down.

But never mind that. Fixed headers that don't scroll are bad even if the content scrolls the right amount, because it wastes precious vertical screen space on useless cruft you don't need. And I'm here to tell you that you can get rid of those annoying fixed headers, at least in Firefox.

[Article with intrusive Yahoo headers]

Let's take Pogue's article itself, since Yahoo is a perfect example of annoying content that covers the page and doesn't go away. First there's that enormous header -- the bottom row of menus ("Tech Home" and so forth) disappear once you scroll, but the rest stay there forever. Worse, there's that annoying popup on the bottom right ("Privacy | Terms" etc.) which blocks content, and although Yahoo! scrolls the right amount to account for the header, it doesn't account for that privacy bar, which continues to block most of the last line of every page.

The first step is to call up the DOM Inspector. Right-click on the thing you want to get rid of and choose Inspect Element:

[Right-click menu with Inspect Element]

That brings up the DOM Inspector window, which looks like this (click on the image for a full-sized view):

[DOM Inspector]

The upper left area shows the hierarchical structure of the web page.

Don't Panic! You don't have to know HTML or understand any of this for this technique to work.

Hover your mouse over the items in the hierarchy. Notice that as you hover, different parts of the web page are highlighted in translucent blue.

Generally, whatever element you started on will be a small part of the header you're trying to eliminate. Move up one line, to the element's parent; you may see that a bigger part of the header is highlighted. Move up again, and keep moving up, one line at a time, until the whole header is highlighted, as in the screenshot. There's also a dark grey window telling you something about the HTML, if you're interested; if you're not, don't worry about it.

Eventually you'll move up too far, and some other part of the page, or the whole page, will be highlighted. You need to find the element that makes the whole header blue, but nothing else.

Once you've found that element, right-click on it to get a context menu, and look for Delete Node (near the bottom of the menu). Clicking on that will delete the header from the page.

Repeat for any other part of the page you want to remove, like that annoying bar at the bottom right. And you're left with a nice, readable page, which will scroll properly and let you read every line, and will show you more text per page so you don't have to scroll as often.

[Article with intrusive Yahoo headers]

It's a useful trick. You can also use Inspect/Delete Node for many of those popups that cover the screen telling you "subscribe to our content!" It's especially handy if you like to browse with NoScript, so you can't dismiss those popups by clicking on an X. So happy reading!

Addendum on Spacebars

By the way, in case you weren't aware that the spacebar did a page down, here's another tip that might come in useful: the spacebar also advances to the next slide in just about every presentation program, from PowerPoint to Libre Office to most PDF viewers. I'm amazed at how often I've seen presenters squinting with a flashlight at the keyboard trying to find the right-arrow or down-arrow or page-down or whatever key they're looking for. These are all ways of advancing to the next slide, but they're all much harder to find than that great big spacebar at the bottom of the keyboard.

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[ 16:23 Jan 02, 2017    More tech/web | permalink to this entry | comments ]
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