@brandocms/europacss v0.13.1
EuropaCSS originally began as a collection of SASS mixins and functions that came in handy when working with design agencies that had very specific designs over different breakpoints. These design systems translate pretty well to configurations and allows weeding out a lot of the boilerplate involved.
USAGE WITH WEBPACK
Example postcss.config.js
:
module.exports = {
plugins: [
require('postcss-easy-import')({
prefix: '_',
extensions: ['pcss', 'scss', 'css'],
plugins: [
require('stylelint')
]
}),
require('@univers-agency/europacss'),
require('autoprefixer')({ grid: 'on' }),
require('css-mqgroup')({ sort: true }),
require('postcss-reporter')({ clearReportedMessages: true, throwError: false })
]
}
NOTES
- Remember to keep your
@import
statements at the top of your.pcss
file - Add
@europa arrows;
@europa base;
to your main stylesheet
CONFIG
setMaxForVw
If you have a set max size for your largest container, you should enable setMaxForVw
. This will
ensure that the largest breakpoint of your vw based sizes will be set to a fixed size.
For instance, if you have:
{
setMaxForVw: true,
theme: {
container: {
maxWidth: {
mobile: '100%',
tablet: '100%',
desktop: '1920px'
}
},
typography: {
sizes: {
h1: {
mobile: '18px',
tablet: '4vw',
desktop: '4vw'
}
}
}
}
}
we will replace the desktop key's 4vw
with 1920/100*4
so that the font will not scale
beyond the container's maxWidth.
Typography
Sizes
typography
sizes
size_name
breakpoint_name
: value
Examples
A regular setup:
typography: {
sizes: {
base: {
mobile: '16px'
}
}
}
If value
is an object, all properties will be added to the selector, i.e:
typography: {
sizes: {
base: {
mobile: {
'font-size': '16px',
'line-height': 1.25
}
}
}
}
AT-RULES
todo
@responsive {breakpointQuery} {block}
EXAMPLE:
@responsive desktop_md {
display: none;
}
@responsive <=ipad_portrait {
color: red;
}
@color {fg/bg/stroke/fill/border/border-[top|bottom|left|right]} {colorName/hex}
Tries to get colorName
from theme.colors
, otherwise passes the color through
EXAMPLE:
h2 {
@color fg headings.h2;
@color bg transparent;
}
@grid
Sets column gap to your gutter configuration across all breakpoints.
EXAMPLE:
.my-grid {
@grid;
grid-template-areas: "a b"
"a c";
grid-template-columns: 6fr 6fr;
.a {
grid-area: a;
}
.b {
grid-area: b;
}
.c {
grid-area: c;
}
}
This creates a 6 columns wide stacking grid.
@display [displayType[/flexDirection][/flexWrap]] [breakpointQuery]
Add shortcut for responsive display decls.
EXAMPLE:
article {
@display flex $mobile;
}
article {
@display flex/row/wrap $mobile;
}
@order {orderNumber} [breakpointQuery]
Add shortcut for responsive order decls.
EXAMPLE:
article {
@order 1 $mobile;
}
@row [childrenPerRow[/wrapModifier][/verticalGap]] [breakpointQuery]
Spaces children correctly per row. Does not set child widths/columns! If no params are given, only the first child gets a margin-left of 0.
wrapModifier
defaults to nowrap
.
verticalGap
defaults to nothing.
EXAMPLE:
.row {
@row 3/wrap;
.child {
@column 4/12;
}
}
/* to apply the `sm` spacing as margin-top for every child, except the 3 first: */
.row {
@row 3/wrap/sm;
.child {
@column 4/12;
}
}
`@embed-responsive {aspectRatio}
PARAMS:
{aspectRatio}
- 16/9
@space {decl} {sizeQuery} [breakpointQuery]
PARAMS:
{decl}
container
(does not acceptsizeQuery
, only[breakpointQuery]
)margin-x
,margin-y
,padding-x
,padding-y
translateX
,translateY
,translateZ
,scale
- Any prop that accepts the values you give it.
{sizeQuery}
xs
> Gets XS fromtheme.spacing
map.2
> Gets2
times the gutter padding.1/3
> Calcs a fraction.3:1/6
> Calcs a 3/6 fraction but with 1 added gutter unitxs/2
> Gets half of the XS fromtheme.spacing
map.between(20px-50px)
> Scales the value from 20px at the start of breakpoint to 50px at the end of breakpoint.container
> Gets value fromtheme.container.padding
for breakpoint.-container
> Gets negative value oftheme.container.padding
for breakpoint.vertical-rhythm(theme.typography.sizes.xl)
> Grabs object for breakpoint and multiplies with default line-height.vertical-rhythm(theme.typography.sizes.xl, 1.2)
> Grabs object for breakpoint and multiplies with 1.2 as line-height.calc(100vw - var[container] + var[1])
> Switches outvar[container]
andvar[1]
with correct values for container padding and 1 gutter unit per breakpoint.
EXAMPLES:
.block {
@space margin-y xl/2;
&:first-of-type {
@space margin-top xl;
}
&:last-of-type {
@space margin-bottom: xl;
}
}
.powerful-stuff {
/* move element 4 columns + a gutter size to the left */
@space translateX calc(var[4:1/12] * -1);
}
If you need the set properties to be marked as !important
you can use @space!
@space! margin-left xs;
@font {fontFamily} [fsQuery]
Selects a font family. Can also be passed a font size query.
PARAMS:
{fontFamily}
- picks
fontFamily
fromtypography.families
[fsQuery]
- can also be passed. Will then create a
@fontsize
rule withfsQuery
as params
@fontsize {fsQuery} [breakpointQuery]
PARAMS:
{fsQuery}
lg
> Picks thelg
key fromtheme.typography.sizes
across breakpointslg/2.0
> Also setsline-height
to2.0
lg(2.0)/2.0
> Adds a modifier(2.0)
that gets used as a multiplier in a calc() for the final font-size.between(18px-22px)
> Responsive font sizing, from 18px to 22px. Needs a breakpoint to function properly.product.size
> Traverses the keypathproduct.size
withintheme.typography.sizes
[breakpointQuery]
xs
> Only for thexs
breakpoint>=md
> Only for larger or equal tomd
@if {value} {block}
Renders {block}
if {value}
is true. Ignores it otherwise.
PARAMS:
{value}
theme.typography.optimizeLegibility
> Checks value in theme config.
EXAMPLES:
@if theme.typography.optimizeLegibility {
article {
text-rendering: optimizeLegibility;
-webkit-font-smoothing: antialiased;
-moz-osx-font-smoothing: grayscale;
}
}
@column {sizeQuery} [breakpointQuery]
Creates a flex column inside rule.
PARAMS:
{sizeQuery}
1/3
> Takes up one third of container, across all breakpoints3:1/6
> Takes up one third of container, across all breakpoints, with 1 unit of guttercalc(var[container] + var[6/12])
> 6/12 columns + width of container gutter
[breakpointQuery]
xs
> For xs breakpoint onlyxs/sm/xl
> For xs, sm and xl breakpoints<=md
> Less and equal to the md breakpoint
EXAMPLES:
article {
@column 1/3;
@column 3/3 xs;
}
/* Column is 1/3 wide on all devices, except xs, which is 3/3. */
@iterate {iterable} block
Iterates through a config object.
PARAMS:
{iterable}
- a path in the theme.object, I.E
theme.header.padding.small
EXAMPLES:
article {
@iterate theme.header.padding.small {
@responsive $key {
padding-top: $value;
padding-bottom: $value;
}
}
}
This creates a media query for each key in theme.header.padding.small
@unpack {object}
Unpacks a config object.
PARAMS:
{object}
- a path in the theme object, I.E
theme.typography.sections.navigation
EXAMPLES:
article {
@unpack theme.typography.sections.navigation;
}
results in
@media (min-size: 0) and (max-size: 749px) {
article {
font-size: 1.2rem;
line-height: 1.6;
}
}
@media (min-size: 750px) and (max-size: 1039px) {
article {
font-size: 1.4rem;
line-height: 1.5;
}
}
/* ... */
POSTCSS PLUGINS IN USE
This would not be possible without the following great plugins:
postcss-extend-rule
postcss-functions
postcss-nested