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Bad contact px 24 how to#

Users don’t bother to adjust the font display settings in the browser, our work is done here!” Some of the rebuttals for using relative CSS units were: “Yes, browsers handle page zoom for us, yet there’s a difference between how the UI appears when the page is zoomed, depending on whether the default browser size has been adjusted as well. Some of the arguments for using pixels in CSS were: “Browsers handle all the font zooming for us, so we don’t have to convert our typography to relative units in CSS.

In fact, our team had a very spirited debate about this when our design system was being rebooted - and I noticed that our typography CSS styles were using px-based line-height values as defined in Sketch by our designer. The browser zoom debateĪt this point in the design system development process, a debate can ensue. A pixel-based typography approach will not work as a CSS strategy, though, when browsers - and specifically browser zooming - enter the picture. This approach can work well for static layout purposes, but there’s a catch. Oftentimes a designer will begin layouts in Sketch or another design-based program, and specify font sizing and line-height values for typography in pixels. In the case of defining a system’s typography styles, standards are established for things like visual hierarchy and rhythm of typography. That said, the most important thread that connects all elements of a design system tapestry is established accessibility best practices - for colors, typography, components, patterns. Consistency across a system empowers designers and developers to craft great app experiences for the end user. (Level AA)ĭesign systems and threads of consistencyĪs someone who works on the O’Reilly Media Design System, weaving threads of consistency across brand, style, and UI components is a top priority.

WCAG 1.4.10 : Users must be able to resize text without being forced to scroll both horizontally and vertically to read that content.

WCAG 1.4.8 : Ideally, we should provide appropriate spacing between lines and paragraphs, and we shouldn’t be requiring the user to scroll horizontally to read a line of text on a full-screen window.

WCAG 1.4.4 : Users must be able to resize text without assistive technology up to 200 percent, without loss of content or functionality.

In particular, there are a some success criteria to be met: If you read the Web Content Accessibility Guidelines, our users need to be able to zoom the viewport without loss of content or functionality, or restrictions imposed by CSS values or viewport scaling settings. The most important reason for using responsive and unitless values in our CSS is for supporting our users that rely on zooming. Lately, that concept seems to have been forgotten as the browser features have improved. Why is browser zoom a big deal, anyway?Īllowing the user to control their web browsing experience isn’t a new concept, in fact it’s something that’s been written about in the web’s early days. When the user zooms the page in a modern browser, everything scales up - or down - proportionally, depending on the user’s preference. We switched from defining and coding our units of measurement in pixels, and began using relative CSS units and unitless values more consistently in our CSS to meet the needs of ever-changing viewport sizes.įast forward to the present, and browser vendors have added in more features to allow us to create flexible and robust designs in a straightforward manner. Of course there was a distinct amount of pixel pushing gymnastics involved, though, when implementing our layouts within the constraints the browsers provided.Īs browser features matured, and techniques like Fluid Grids became more commonplace, the way we coded our sites evolved into a whole new paradigm. Static and adaptive layouts were commonplace, and our sites were designed to pixel perfection.

Bad contact px 24 how to#

Earlier versions of today’s browsers had limited features, and we had to consider how to work with - or around- those when designing and developing our sites. We seem to be in a golden age where there’s a never-ending stream of new features added for the benefit of the users accessing the page, and really great tools for those creating the page.