September 2014
Intermediate to advanced
110 pages
2h 20m
English
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Chapter 6. Be Progressive: Font Sizing and FOUT
In this chapter we’re going to talk about two important aspects of being responsive with your type: sizing it appropriately and getting it on screen fast. While we covered absolute speed in the last chapter, in this one we’re going to tackle perceived speed, which ultimately may be more important. We’ll also look at a key aspect of the notion of Progressive Enhancement. Essentially, it’s planning for failure. You must design and code your site with the assumption that there will always be some point during the loading process or viewing experience when web fonts will not be present—and handling that appropriately is essential. By designing and developing for the brief moments before web fonts load, you’re also addressing the (potentially) millions of visitors to your site for whom web fonts won’t load at all (i.e., those browsing via Opera Mini).[3]
On Units of Measure
There are lots of choices in sizing type, but if you’re looking to be most compatible with modern web design and development techniques, a relative unit of measure is extremely important. Rather than using a fixed unit of measure (px), you’ll want to use em or rem (cleverly meaning a relative em).
I tend to stick with ems because if you base your text sizes, vertical margins and padding, and media query breakpoints all in ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.