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Responsive Web Applications with Container Queries
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A talk about process, not code
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Beautiful Accounting Software
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Goal: Evolve the design
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Problem: Different tech stacks
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Goal: Responsive
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Problem: Designers weren’t thinking “Responsive”
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Let’s take a step back…
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Responsive
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Device-specific design and development
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A Designer saw a feature through all platforms
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Goal: Evolve the design
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Monolithic app with accessible templates
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Goal: Responsive
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Ignored Mobile Web
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Limited Mobile App
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Each horizontal block is considered in the context of the viewport
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Each page can be art directed individually
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Web applications have components in multiple contexts needing to respond differently
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A single page in a web application can have dozens of variations
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With media queries, you have to know the possible interplay of all objects
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With container queries, you only have to know the interplay within a single object
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No spec for container queries
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Declare in: CSS, HTML, or JavaScript
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https://github.com/ResponsiveImagesCG/cq-demos .element:media( min-width:500px ) {} https://github.com/tysonmatanich/elementQuery .element[min-width~=“500px"] { background-color: #eee; }
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http://eqcss.github.io/eqcss/ @element ".element" and (min-width: 500px) { .element { background: gold; } }
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https://github.com/tysonmatanich/elementQuery .element[min-width~="400px"] { }
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To parse CSS, either need to be on same domain or set up CORS
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https://github.com/Snugug/eq.js data-eq-pts="small: 400, medium: 600, large: 900"
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At HTML level, requires consistency of implementation across app
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We chose JavaScript
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elements = [ { "module": ".flex--2x1", "className":"responsiveClass", "minWidth": 768, "maxWidth": 1024 } ]
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Due to resize debouncing, there’s a small but discernible delay in re-render
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Going Responsive meant a consistent feature set across all devices
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New features automatically have cross-device support
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Went responsive in under a month†
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Lessons Learned
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It’s not about the properties, it’s about its purpose.
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Tried to use grid classes for everything
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Had to write extra classes just to define responsive story
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Single purpose classes resulted in less edge cases (and less code!)
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Gzip minimizes duplicate properties really well
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Tables are difficult
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Avoid too much on the horizontal axis
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Product Design is a team sport
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Goal: Evolve the design
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Goal reframed: Allow anybody to make product-wide design changes quickly and easily
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Problem: Different tech stacks
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Make the right things easy and the wrong things hard
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Problem: Designers weren’t thinking “Responsive”
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Solution: Education?
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Lessons Learned
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Container Queries enable faster development
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Designers should think Responsive before they need to.
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Thank you. http:/ /snook.ca/ @snookca