David Mohundro drmohundro

Hello, visitors! If you want an updated version of this styleguide in repo form with tons of real-life examples… check out Trellisheets! https://github.com/trello/trellisheets

Trello CSS Guide

“I perfectly understand our CSS. I never have any issues with cascading rules. I never have to use !important or inline styles. Even though somebody else wrote this bit of CSS, I know exactly how it works and how to extend it. Fixes are easy! I have a hard time breaking our CSS. I know exactly where to put new CSS. We use all of our CSS and it’s pretty small overall. When I delete a template, I know the exact corresponding CSS file and I can delete it all at once. Nothing gets left behind.”

You often hear updog saying stuff like this. Who’s updog? Not much, who is up with you?

	<Query Kind="Program">
	<NuGetReference Prerelease="true">Microsoft.Diagnostics.Runtime</NuGetReference>
	<Namespace>Microsoft.Diagnostics.Runtime</Namespace>
	<Namespace>System</Namespace>
	<Namespace>System.IO</Namespace>
	<Namespace>System.Linq</Namespace>
	<Namespace>System.Text</Namespace>
	<Namespace>Microsoft.Diagnostics.Runtime.Utilities</Namespace>
	</Query>

	import UIKit

	// How to make singleton classes in Swift: http://stackoverflow.com/questions/24024549/dispatch-once-singleton-model-in-swift
	// Basically using global constants is the most easy and safe way to go

	class APIClient: NSObject {

	let functionSessionManager:AFHTTPSessionManager

	class var sharedInstance:APIClient {

	Latency Comparison Numbers (~2012)
	----------------------------------
	L1 cache reference 0.5 ns
	Branch mispredict 5 ns
	L2 cache reference 7 ns 14x L1 cache
	Mutex lock/unlock 25 ns
	Main memory reference 100 ns 20x L2 cache, 200x L1 cache
	Compress 1K bytes with Zippy 3,000 ns 3 us
	Send 1K bytes over 1 Gbps network 10,000 ns 10 us
	Read 4K randomly from SSD* 150,000 ns 150 us ~1GB/sec SSD