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update responsive utility docs post-overhaul

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Chris Rebert
2014-12-29 19:59:10 -08:00
parent 5868b5bc9c
commit e651b48eb6
4 changed files with 190 additions and 189 deletions
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docs/layout/media-queries.md
+47 -31
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@@ -7,48 +7,64 @@ Since Bootstrap is designed to be mobile-first, we employ media queries in our C
### Common queries
Bootstrap uses the following media query ranges in our source Sass files for key breakpoints in our layout, grid system, and components.
Bootstrap mainly uses the following media query ranges in our source Sass files for key breakpoints in our layout, grid system, and components.
{% highlight scss %}
/* Extra small devices (phones, less than 768px) */
/* Extra small devices (portrait phones, less than ???px) */
/* No media query since this is the default in Bootstrap */
/* Small devices (tablets, 768px and up) */
@media (min-width: @screen-sm-min) { ... }
/* Small devices (landscape phones, 34em and up) */
@media (min-width: 34em) { ... }
/* Medium devices (desktops, 992px and up) */
@media (min-width: @screen-md-min) { ... }
/* Medium devices (tablets, 48em and up) */
@media (min-width: 48em) { ... }
/* Large devices (large desktops, 1200px and up) */
@media (min-width: @screen-lg-min) { ... }
/* Large devices (desktops, 62em and up) */
@media (min-width: 62em) { ... }
/* Extra large devices (large desktops, 75em and up) */
@media (min-width: 75em) { ... }
{% endhighlight %}
We occasionally expand on these media queries to include a <code>max-width</code> to limit CSS to a narrower set of devices.
These media queries are available via Sass mixins:
{% highlight scss %}
@media (max-width: @screen-xs-max) { ... }
@media (min-width: @screen-sm-min) and (max-width: @screen-sm-max) { ... }
@media (min-width: @screen-md-min) and (max-width: @screen-md-max) { ... }
@media (min-width: @screen-lg-min) { ... }
{% endhighlight %}
@include media-breakpoint-up(xs) { ... }
@include media-breakpoint-up(sm) { ... }
@include media-breakpoint-up(md) { ... }
@include media-breakpoint-up(lg) { ... }
@include media-breakpoint-up(lxl) { ... }
### Sass mixins
The above media queries are also available via Sass mixins:
{% highlight scss %}
// List of mixins
@include media-xs { ... }
@include media-sm { ... }
@include media-sm-max { ... }
@include media-md { ... }
@include media-md-max { ... }
@include media-lg { ... }
// Usage
@include media-xs {
.element {
// Example usage:
@include media-breakpoint-up(sm) {
.some-class {
display: block;
}
}
{% endhighlight %}
We occasionally use media queries that go in the other direction (the given screen size *or smaller*):
{% highlight scss %}
/* Extra small devices (portrait phones, less than 34em) */
@media (max-width: 33.9em) { ... }
/* Small devices (landscape phones, less than 48em) */
@media (max-width: 47.9em) { ... }
/* Medium devices (tablets, less than 62em) */
@media (max-width: 61.9em) { ... }
/* Large devices (desktops, less than 75em) */
@media (max-width: 74.9em) { ... }
/* Extra large devices (large desktops) */
/* No media query since the extra-large breakpoint has no upper bound on its width */
{% endhighlight %}
These media queries are available via Sass mixins:
{% highlight scss %}
@include media-breakpoint-down(xs) { ... }
@include media-breakpoint-down(sm) { ... }
@include media-breakpoint-down(md) { ... }
@include media-breakpoint-down(lg) { ... }
@include media-breakpoint-down(lxl) { ... }
{% endhighlight %}