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Responsive Web
Applications
with Container Queries
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A talk more about
process than code
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Beautiful
Accounting
Software
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Goal #1
Evolve the design
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Goal #2
Support Multiple
Devices
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Goal #1
Evolve the design
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Goal #2
Support Multiple
Devices
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Responsive
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Responsive
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Device-specific
design and
development
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Designers see a
feature through all
platforms
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Goal #1
Evolve the design
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Goal #2
Support Multiple
Devices
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Monolithic app with
accessible templates
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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 more
easily be art directed
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• 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
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And now consider all of
those things for
multiple viewports
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A single page in a web
application can have
dozens of variations
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A component-based
site has components
respondingly differently
to multiple contexts
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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://elementqueries.com/
@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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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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How the heck do
you do that in a
month?
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There’s a discernible
delay in execution
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It’s not about the
properties, it’s about
the 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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Goal #1
Evolve the design
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Goal #2
Support Multiple
Devices
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Goal #1 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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10
5
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Yahoo! still does a
custom experience
per device
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Shopify is getting rid
of Container Queries
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…
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.two-columns {
display: flex;
flex-wrap: wrap;
}
.col1, .col2 { flex-grow: 1; }
.col1 {
flex-basis: 66%;
min-width: 360px;
}
.col2 {
flex-basis: 33%;
}
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.media-body {
display: flex;
flex-wrap: wrap;
}
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.media-content {
flex-grow: 1;
flex-basis: 400px;
margin-right: 20px;
}
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.media-actions {
align-self: center;
margin: 20px 0;
}
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…
…
…
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.items {
display: grid;
grid-template-columns:
repeat(auto-fit, minmax(400px, 1fr));
}
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...
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.box {
display: flex;
flex-wrap: wrap;
}
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.box-image {
flex-grow: 1;
flex-shrink: 0;
flex-basis: 150px;
}
.box-image > img {
width: 100%;
object-fit: cover;
}
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.box-content {
margin: 10px;
flex-shrink: 1;
flex-grow: 1;
flex-basis: 60%;
}
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Designers should
think Responsive
before they need to.
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Container Queries
enable faster
development
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Use techniques to
avoid media or
container queries
altogether
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http://ricg.io
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Thank you.
http:/
/snook.ca/
@snookca