8/8/2023 0 Comments Css font kit generator![]() It will push things like images down and might be even more pronounced for relative units, such as em units if the width of the m character has changed in the swap. As the difference accumulates, some things move quite a bit.įor example, a tiny 1px difference in the height of the font will mean something like a 20px move by the bottom of the viewport (on a modest laptop). Although this is often a small difference, it means everything on the page moves. It will either be a little wider or a little taller, than the font it replaces. When a font swaps out, it almost always changes geometry. ![]() This causes a distracting update to the page and is likely to cause a layout shift. I dislike this swap as no matter what you do to make your fallback look similar in size to the “final” font, it will never be close enough to stop the visual refresh that happens when the font loads. This allows the browser to show the text with a fallback font while the files are downloaded. The recommended solution to this issue is to use font-display: swap. If that text can’t load because it’s waiting for a font, your largest contentful paint can’t happen until the font is loaded. Reducing this chain is vital to having good performance - so you’ll see this being solved in the solution. This might not seem like much, but this is a long time to wait before the browser even starts downloading the font - so it’s going to cause a problem. The browser finds the reference to the font file, i.e.The browser finds the import for the font stylesheet, i.e.The browser finds your stylesheet, i.e.The problem with this approach is the loading chain is just too long. This external stylesheet has all the font information, so you can just add the font name to your style rules. You add an import to your own CSS that points to a stylesheet maintained by someone else. Here’s some examples of the problems… External stylesheetĪ common way to load web fonts is via an external stylesheet. The one thing that took longer than expected was web fonts. This has basically involved moving to a static site generator, writing a script to generate sets of images, and writing my own HTML, CSS, and (a sprinkling of) JavaScript with no frameworks to ruin my results. I’m really interested in how I can make things fast - not just for users in wealthy countries with premium devices, but for everyone. Web font problemsĪn almost constant experiment for me on this site is performance. I’ll explain why I’ve been doing this and then provide the solution I’ve landed on that works best for me. I’ve been quietly experimenting with different fonts and font-handling strategies on my website.
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