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snookca
November 30, 2017
Technology
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1.6k
Responsive Web Applications
As presented at dotCSS in Paris, France
snookca
November 30, 2017
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Transcript
Responsive Web Applications with Container Queries
Why We Need Container Queries
None
None
None
None
None
None
None
• No orders • One order • Less than one
page of orders • Multiple pages of orders • Has Info Notifications • Tab overflow • Has Warning Notifications • Has limited access to features • Has different apps installed
And now consider all of those things for multiple viewports
None
None
With media queries, you have to know the interplay of
all objects in all scenarios
Implementing Container Queries
With container queries, you only have to know the interplay
within a single object
No container queries!
Declare in: CSS, HTML, or JavaScript
https://github.com/ResponsiveImagesCG/cq-demos .element:media( min-width:500px ) {} https://github.com/tysonmatanich/elementQuery .element[min-width~="500px"] { background-color: #eee;
}
http://elementqueries.com/ @element ".element" and (min-width: 500px) { .element {
background: gold; } }
https://github.com/tysonmatanich/elementQuery .element[min-width~="400px"] { }
To parse CSS, either need to be on same domain
or set up CORS
https://github.com/Snugug/eq.js data-eq-pts="small: 400, medium: 600, large: 900"
At HTML level, requires consistency of implementation across app
We chose JavaScript and built our own
elements = [ { "module": ".flex--2x1", "className":"responsiveClass", "minWidth": 768, "maxWidth":
1024 } ]
Why is this so f**kin’ hard?
.element:media( min-width:500px ) { width: 400px; }
None
.element { width: 50%; } .element:media( min-width:500px ) { color:
blue; }
The Future
ResizeObserver
Houdini
What’s Houdini: • Layout API • Custom Paint API •
Parser API • Properties and Values • Animation Workout • Typed OM • Font Metrics API
None
In Chrome: • Layout API • Custom Paint API •
Parser API • Properties and Values • Animation Worklet • Typed OM • Font Metrics API
None
<div class="two-columns"> <div class="col1"> … </div> <div class="col2"> … </div>
</div>
.two-columns { display: flex; flex-wrap: wrap; } .col1, .col2 {
flex-grow: 1; } .col1 { flex-basis: 66%; min-width: 360px; } .col2 { flex-basis: 33%; }
None
<div class="media-body"> <div class="media-content"> </div> <div class="media-actions"> <a href="…"> Button
</a> </div> </div>
.media-body { display: flex; flex-wrap: wrap; }
.media-content { flex-grow: 1; flex-basis: 400px; margin-right: 20px; }
.media-actions { align-self: center; margin: 20px 0; }
None
<div class="box"> <div class="box-image"> <img src="…" height="150" > </div> <div
class="box-content">...</div> </div>
.box { display: flex; flex-wrap: wrap; }
.box-image { flex-grow: 1; flex-shrink: 0; flex-basis: 150px; } .box-image
> img { width: 100%; object-fit: cover; }
.box-content { margin: 10px; flex-shrink: 1; flex-grow: 1; flex-basis: 60%;
}
<div class="items"> <div class="box">…</div> <div class="box">…</div> <div class="box">…</div> </div>
.items { display: grid; grid-template-columns: repeat(auto-fit, minmax(400px, 1fr)); }
Thank you. http:/ /snook.ca/ @snookca