Tags: size

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sparkline

Saturday, March 9th, 2019

Performance Budgets That Stick - TimKadlec.com

I like Tim’s definition here:

A performance budget is a clearly defined limit on one or more performance metrics that the team agrees not to exceed, and that is used to guide design and development.

And I agree about the four attributes required for a performance budget to succeed. It must be:

  1. Concrete
  2. Meaningful
  3. Integrated
  4. Enforceable

The point is not to let the performance budget try to stand on its own, somewhere hidden in company documentation collecting dust. You need to be proactive about making the budget become a part of your everyday work.

Friday, February 1st, 2019

Limiting JavaScript? - TimKadlec.com

Following on from that proposal for a browser feature that I linked to yesterday, Tim thinks through all the permutations and possibilities of user agents allowing users to throttle resources:

If a limit does get enforced (it’s important to remember this is still a big if right now), as long as it’s handled with care I can see it being an excellent thing for the web that prioritizes users, while still giving developers the ability to take control of the situation themselves.

Thursday, January 31st, 2019

194028 – Add limits to the amount of JavaScript that can be loaded by a website

Now this is a feature request I can get behind!

A user must provide permission to enable geolocation, or notifications, or camera access, so why not also require permission for megabytes of JavaScript that will block the main thread?

Without limits, there is no incentive for a JavaScript developer to keep their codebase small and dependencies minimal. It’s easy to add another framework, and that framework adds another framework, and the next thing you know you’re loading tens of megabytes of data just to display a couple hundred kilobytes of content.

I’m serious about this. It’s is an excellent proposal for WebKit, similar to the never-slow mode proposed by Alex for Chromium.

Sunday, January 13th, 2019

Dimensions.Guide | Database of Dimensioned Drawings

There’s something quite lovely about this site, both in its purpose and execution.

Dimensions.Guide is a comprehensive reference database of dimensioned drawings documenting the standard measurements and sizes of the everyday objects and spaces that make up our world. Created as a universal resource to better communicate the basic properties, systems, and logics of our built environment, Dimensions.Guide is a free platform for increasing public and professional knowledge of life and design.

Friday, November 23rd, 2018

Responsive Images on the Apple Watch — ericportis.com

Some tips for getting responsive images to work well on the Apple Watch:

  • test your layouts down to 136-px wide
  • include 300w-ish resources in your full-width img’s srcsets
  • art direct to keep image subjects legible
  • say the magic meta words

Tuesday, October 9th, 2018

AddyOsmani.com - Start Performance Budgeting

Great ideas from Addy on where to start with creating a performance budget that can act as a red line you don’t want to cross.

If it’s worth getting fast, it’s worth staying fast.

Tuesday, July 10th, 2018

When 7 KB Equals 7 MB - Cloud Four

I remember Jason telling me about this weird service worker caching behaviour a little while back. This piece is a great bit of sleuthing in tracking down the root causes of this strange issue, followed up with a sensible solution.

Tuesday, June 26th, 2018

Pixels vs. Ems: Users DO Change Font Size – Evan Minto – Medium

I have to admit, I didn’t realise that text reszing behaved differently for user preferences compared to page zoom. For that reason alone, I’m going to avoid setting font sizes in pixels.

If 2 to 3% (or more!) of your users are relying on a custom font size, you should know that so you can either support that user preference or make a conscious decision to not support it. Doing anything less is frankly irresponsible, especially considering that users with larger font sizes may be using those sizes to compensate for visual disabilities.

Monday, March 12th, 2018

Swapping Images with the Sizes Attribute | Filament Group, Inc., Boston, MA

The hits just keep on coming from the Filament Group. Here Scott shares a really clever technique for creating an image magnifier using the sizes attribute of the img element.

Tuesday, February 27th, 2018

Responsive Components: a Solution to the Container Queries Problem — Philip Walton

Here’s a really smart approach to creating container queries today—it uses ResizeObserver to ensure that listening for size changes is nice and performant.

There’s a demo site you can play around with to see it in action.

While the strategy I outline in this post is production-ready, I see us as being still very much in the early stages of this space. As the web development community starts shifting its component design from viewport or device-oriented to container-oriented, I’m excited to see what possibilities and best practices emerge.

Sunday, June 25th, 2017

The Equilateral Triangle of a Perfect Paragraph | Better Web Type

This is a fun game (I scored a measly 73/100). The idea is to develop a feeling for the balance between font-size, line-height, and line length …just like the three sides of an equilateral triangle.

Too many of them still set line-height, font size and line width as independent features when in fact they should all be considered together. The equilateral triangle is a perfect representation of how the three features work in harmony.

Thursday, January 12th, 2017

Saving you bandwidth on Google+ through machine learning

This is an interesting use of voodoo magic (or “machine learning” as we call it now) by Google to interpolate data in a small image to create a larger version. A win for performance.

Tuesday, October 25th, 2016

Web Bloat Score Calculator

Here’s an interesting metric for measuring performance: take the overall page weight of a URL and divide it by the file size of the screenshot of that URL.

Sunday, October 5th, 2014

LHC Map

A lovely hack from Science Hack Day San Francisco: get an idea of the size of CERN’s Large Hadron Collider by seeing it superimposed over your town.

Tuesday, September 30th, 2014

Keep ’em Separated — ericportis.com

I share the concerns expressed here about the “sizes” attribute that’s part of the new turbo-powered img element (or “the picture element and its associates”, if you prefer). Putting style or layout information into HTML smells bad.

This is a concern that Matt Wilcox has raised:

Change the design and those breakpoints are likely to be wrong. So you’ll need to change all of the client-side mark-up that references images.

I can give you a current use-case: right here on adactio.com, you can change the stylesheet …so I can’t embed breakpoints or sizes into my img elements because—quite rightly—there’s a separation between the structural HTML layer and the presentational CSS layer.

Tuesday, September 23rd, 2014

» Don’t use <picture> (most of the time) Cloud Four Blog

Jason points out that the picture element might not be needed for most responsive image use cases; the srcset and sizes attributes will probably be enough—that’s what I’m doing for the photos on my site.

Wednesday, April 23rd, 2014

Responsive design testing tool – Viewport Resizer

A handy little bookmarklet for quickly checking how a site might look at different screen sizes, and you can customise it to use whichever screen sizes you like.

Monday, February 11th, 2013

Responsive typography demo

This is a pretty wacky experiment in altering font size based on the user’s distance from the screen (allow the page to access your camera and enable the “realtime” option for some real fun). I don’t know how much real-world application this has, but it’s a cute’n’fun exercise.

Sunday, July 22nd, 2012

JPEGmini - Your Photos on a Diet!

This looks like a really handy tool for reducing the file size of JPEGs without any perceptible loss of quality (in much the same way that ImageOptim works for PNGs)—available as a Mac app or an installable web service.

Saturday, August 20th, 2011

Sizing with CSS3’s vm and vh units - Snook.ca

Once again I’m getting all my CSS3 information from Jonathan. This time he’s discovered the vw and vh units which allow you to specify sizes relative to the size of the viewport.