crystalw

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Advanced SCSS

Or, 16 cool things you may not have known your stylesheets could do. I'd rather have kept it to a nice round number like 10, but they just kept coming. Sorry.

I've been using SCSS/SASS for most of my styling work since 2009, and I'm a huge fan of Compass (by the great @chriseppstein). It really helped many of us through the darkest cross-browser crap. Even though browsers are increasingly playing nice with CSS, another problem has become very topical: managing the complexity in stylesheets as our in-browser apps get larger and larger. SCSS is an indispensable tool for dealing with this.

This isn't an introduction to the language by a long shot; many things probably won't make sense unless you have some SCSS under your belt already. That said, if you're not yet comfy with the basics, check out the aweso

crystalw

##Sass Functions Cheat Sheet

1. RGB Functions
2. HSL Functions
3. Opacity Functions
4. Other Color Functions
5. List Functions
6. Map Functions
7. Selector Functions
8. String Functions

crystalw

Styling native elements

Native HTML controls are a challenge to style. You can style any element in the web platform that uses Shadow DOM with a pseudo element ::pseudo-element or the /deep/ path selector.

video::webkit-media-controls-timeline {
  background-color: lime;
}

video /deep/ input[type=range] {

crystalw

// ----
// Sass (v3.4.12)
// Compass (v1.0.3)
// ----

$scotch-color-key: 'base' !default;

$scotch-colors: (
  'primary': (
    'base': #8e3329,

crystalw

#opens chrome with CORS disabled
alias chromex='/Applications/Google\ Chrome.app/Contents/MacOS/Google\ Chrome --disable-web-security'

#removes merged local branches (except for master)
alias gitprune='git branch --merged | grep -v "\*" | grep -v master | xargs -n 1 git branch -d'

#switches to ui project
alias backend="cd ${PWD/ui/backend}"

#switches to backend project

crystalw

// iframes
var  $iframes = $( document.querySelectorAll( '.widget iframe' ) );

function iframeSizing() {
	var	$this			= $( this ),
		width			= $this.width(),
		height			= $this.height(),
		containerWidth		= $this.parent().width(),
		heightRatio		= height / width,
		newHeight		= heightRatio * containerWidth;

crystalw

<?php

//regex for 7 or 10 digit number, delimiters are spaces, dashes, or periods:
^(?:(?:\+?1\s*(?:[.-]\s*)?)?(?:(\s*([2-9]1[02-9]|[2-9][02-8]1|[2-9][02-8][02-9]‌​)\s*)|([2-9]1[02-9]|[2-9][02-8]1|[2-9][02-8][02-9]))\s*(?:[.-]\s*)?)?([2-9]1[02-‌​9]|[2-9][02-9]1|[2-9][02-9]{2})\s*(?:[.-]\s*)?([0-9]{4})$

//same regex as above, but for 10 digit number only
^(?:(?:\+?1\s*(?:[.-]\s*)?)?(?:(\s*([2-9]1[02-9]|[2-9][02-8]1|[2-9][02-8][02-9]‌​)\s*)|([2-9]1[02-9]|[2-9][02-8]1|[2-9][02-8][02-9]))\s*(?:[.-]\s*)?)([2-9]1[02-9]‌​|[2-9][02-9]1|[2-9][02-9]{2})\s*(?:[.-]\s*)?([0-9]{4})$

//this regex will not allow the preceeding 1 at the beginning of the phone number
^(?:(?:(\s*\(?([2-9]1[02-9]|[2-9][02-8]1|[2-9][02-8][02-9])\s*)|([2-9]1[02-9]|[2‌​-9][02-8]1|[2-9][02-8][02-9]))\)?\s*(?:[.-]\s*)?)([2-9]1[02-9]|[2-9][02-9]1|[2-9]‌​[02-9]{2})\s*(?:[.-]\s*)?([0-9]{4})$

crystalw

DELETE pm
FROM wp_postmeta pm
LEFT JOIN wp_posts wp ON wp.ID = pm.post_id
WHERE wp.ID IS NULL

crystalw

<div class="outcome" class="successful">
    <p>Thanks, your message has been sent!</p>
</div>

<script>
$(document).ready(function() {
    if ($( '#outcome' ).hasClass( "successful" )) {
      _gaq.push(['_trackEvent', 'Category', 'Action', 'opt_label']);
    }
});

crystalw

!!! 5
%html
  %head
    %title= "My Website"
    %meta{ :charset => "utf-8" }
    %meta{ :content => "", :name => "description" }
    %meta{ :content => "", :name => "author" }
    %link{ :href => "/feed", :rel => "alternate", :title => "Atom", :type => "application/atom+xml" }
    %link{ :href => "/css/screen.css", :media => "screen", :rel => "stylesheet" }
  %body