![]() ![]() However, this does not solve all the other issues defined in this article and is not recommended. Note: It is possible to use newer directives, such as preload, on font resources to avoid FOUC. However, if they do not, it is possible that random characters or glyphs will appear in place of your icons before the font is fully loaded. Icon fonts typically assign their glyphs to codepoints outside of the normal range that most normal fonts operate in. These flashes can be very jarring to your visitors. This results in a flash of unstyled content (FOUC). While waiting for the font asset, the browser will choose to display the textual content of the HTML before actually receiving it. How long it takes to retrieve the font can depend on the size of the font asset, network conditions, and user hardware. When a linked font is found, the request is fired. When the browser begins parsing the HTML and all linked files referenced in the markup, it is building the Document Object Model (DOM) in realtime. This request isn't immediately dispatched either. ![]() When utilizing you are instructing the browser to make an HTTP request for the required font file. Flawed Icon Fonts Flash of Unstyled Content (FOUC) And now, with full SVG support at our disposal, it's time to put a stop to their use, once and for all. Considering that real SVG support across all major browsers didn't become stable until early 2020, icon fonts were the defacto way to add vector-based icons on your web site.īut icon fonts on the web were fundamentally flawed from the beginning. This gave birth to the idea that fonts composed of pictograms, like Wingdings, could be used in place of raster images on the web. By 2011, all major browsers supported it. The introduction of the CSS at-rule allowed web designers to specify custom fonts with which to display text. However, it would be nearly 22 years later before icon fonts would become a design trend on the internet. Just one year before the first web page went live in 1991, Microsoft began shipping perhaps the most well-known icon font, Wingdings. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |