v0.2.0

• New Features
  • Add a custom prefix to all utilities
  • Optionally make all utilities !important
  • Round element corners independently
  • Cascading border colors and styles
• Upgrade Guide / Breaking Changes
  • auto is no longer a hard-coded margin value
  • The defaultConfig function is now a separate module
  • Rounded utilities now combine position and radius size
  • Border width utilities no longer affect border color/style
  • @apply is now very strict about what classes can be applied
  • Add options key to your config
  • Spacing, radius, and border width utility declaration order changes

New Features

Add a custom prefix to all utilities

One of the most common questions we've received since releasing v0.1.0 is "can I use Tailwind with {my existing CSS|another CSS framework}?"

While there was nothing stopping you from layering Tailwind on top of existing CSS, Tailwind has a lot of class names in common with other frameworks (.container, .mb-2, etc.) so you could run into problematic naming collisions if you weren't careful.

To fix this, you can now specify a custom prefix for all of the classes Tailwind generates under the new options key in your Tailwind config file:

{
  // ...
  options: {
    prefix: 'tw-',
    // ...
  },
}

Now all of Tailwind's utilities will include that prefix:

<!-- This... -->
<div class="bg-white hover:bg-blue md:bg-red"></div>

<!-- ... becomes this: -->
<div class="tw-bg-white hover:tw-bg-blue md:tw-bg-red"></div>

To learn more, read the full documentation.

Optionally make all utilities !important

Another common obstacle when trying to use Tailwind with existing CSS is dealing with specificity.

By default, Tailwind utilities are not marked as !important, which means that if your existing CSS has high specificity selectors, trying to override what those selectors are doing with a Tailwind utility just won't work.

To fix this, we've added another option to the options section of the Tailwind config file:

{
  // ...
  options: {
    // ...
    important: true,
    // ...
  },
}

If you set important to true, all of Tailwind's declarations will get marked as !important, so they can easily be used to override existing CSS.

To learn more, read the full documentation.

Round element corners independently

Up until now, you could only apply a border radius to pairs of corners, like the top two corners, left two corners, etc.

Now you can round corners independently too:

<!-- Round the top left corner: -->
<div class="rounded-tl"></div>

<!-- Round the top right corner: -->
<div class="rounded-tr"></div>

<!-- Round the bottom right corner: -->
<div class="rounded-br"></div>

<!-- Round the bottom left corner: -->
<div class="rounded-bl"></div>

See more examples in the border radius documentation.

Cascading border colors and styles

In v0.1.x, our border width utilities used the border shorthand property, which meant that setting a border width also set a style and color:

.border-2 {
  border: 2px solid config('colors.grey-lighter');
}

This meant that if you wanted to change the border style or color of an element and then change the border width at a larger breakpoint, you'd have to re-specify the style/color:

<div class="border-2 border-red border-dashed md:border-4 md:border-red md:border-dashed"></div>

Now our border width utilities only specify the width, so any color or style modifications will properly cascade to larger breakpoints without having to be re-specified:

<div class="border-2 border-red border-dashed md:border-4"></div>

This is technically a breaking change, so check out the relevant section in the upgrade guide to understand how this might affect your site.

Upgrade Guide / Breaking Changes

auto is no longer a hard-coded margin value

Impact: Low

Instead of hard-coding mx-auto, ml-auto, etc. into Tailwind itself, we've moved those values into the customizable margin scale in the config file.

So if you're using a custom config file, add auto to your margin scale:

  {
    // ...
    margin: {
+     'auto': 'auto',
      'px': '1px',
      '0': '0',
      '1': '0.25rem',
      '2': '0.5rem',
      '3': '0.75rem',
      '4': '1rem',
      '6': '1.5rem',
      '8': '2rem',
    },
  }

The defaultConfig function is now a separate module

Impact: Low

In the generated Tailwind config file, we include a line of code showing you how to reference Tailwind's default config values in case you'd like to reference them in your own config file.

For technical reasons, the way this works has changed:

// The old way:
var defaultConfig = require('tailwindcss').defaultConfig()

// The new way:
var defaultConfig = require('tailwindcss/defaultConfig')()

The good news is that this change makes it possible for you to import your custom config file into your front-end JavaScript if you'd like; making it easy to re-use the same color palette with libraries like D3.js or Chart.js for example.

Rounded utilities now combine position and radius size

Impact: High

Previously, border radius position and radius size were specified with two utilities. Now, size and position are combined into the same utility:

<!-- The old way: -->
<div class="rounded-lg rounded-t"></div>

<!-- The new way: -->
<div class="rounded-t-lg"></div>

We made this change because it makes working with border radius generally more predictable and much more flexible.

For example, previously, if you wanted to round 3 corners of an element, you could try this, but it wouldn't work:

<!-- Doesn't work: -->
<div class="rounded-lg rounded-t rounded-l"></div>

Instead, you'd see that only the left side was rounded. This is because the previous implementation of rounded-l worked by unrounding the right-side corners.

Now you can round 3 corners of an element two ways:

<!-- Option 1: Round two sides -->
<div class="rounded-t-lg rounded-l-lg"></div>

<!-- Option 3: Round the corners separately -->
<div class="rounded-tl-lg rounded-tr-lg rounded-bl-lg"></div>

Upgrade steps

1. If you have a custom config file, make sure your 0 value border radius utility appears first in your border radius scale:

     {
       // ...
       borderRadius: {
   +     'none': '0',
         'sm': '.125rem',
         default: '.25rem',
         'lg': '.5rem',
         'full': '9999px',
   -     'none': '0',
       },
     }

   This is important if you ever need to reset the border radius of a side at a breakpoint and add a border radius to another side that shares a corner.

2. Look for any time you round one side of an element in your codebase and collapse the separate position and size utilities into the new corresponding compound utility:

   <!-- Change this: -->
   <div class="rounded-lg rounded-t"></div>
   
   <!-- To this: -->
   <div class="rounded-t-lg"></div>
   
   
   <!-- Change this: -->
   <div class="rounded rounded-l"></div>
   
   <!-- To this: -->
   <div class="rounded-l"></div>

3. If you were changing which side of an element was rounded responsively, now you'll need to explicitly unround one side when you round the other:

   <!-- Change this: -->
   <div class="rounded-lg rounded-t lg:rounded-lg lg:rounded-l"></div>
   
   <!-- To this: -->
   <div class="rounded-t-lg lg:rounded-t-none lg:rounded-l-lg"></div>

Border width utilities no longer affect border color/style

Impact: Medium

Previously, applying a border width utility like .border-2 would not only set the border width; it would also override the border color and border style.

This is no longer the case, so if you were ever depending on that behavior (for example when overriding things responsively), you'll need to update your code to explicitly change the color and style:

<!-- Change this: -->
<div class="border border-dashed border-red md:border-2"></div>

<!-- To this: -->
<div class="border border-dashed border-red md:border-2 md:border-solid md:border-grey-lighter"></div>

It's very unlikely that you were depending on this behavior so chances are you won't need to make th...

v0.1.6

• Fix CDN files not being published to npm

v0.1.5

• Fix CLI tool not loading config files properly (#149)
• Apply the same default placeholder styling that's applied to inputs to textareas (#119)

v0.1.4

• If using Webpack, it will now watch your config file changes
• Autoprefix dist assets for quick hacking and prototyping
• Move list utilities earlier in stylesheet to allow overriding with spacing utilities (bug fix)
• Add my-auto, mt-auto, and mb-auto margin utilities
• Add sans-serif to end of default sans font stack
• When running tailwind init [filename], automatically append .js to filename if not present
• Support default fallback value in config(...) function, ie. config('colors.blue', #0000ff)
• Don't output empty media queries if Tailwind processes a file that doesn't use Tailwind

v0.1.3

• Add new .scrolling-touch and .scrolling-auto utilities for controlling inertial scroll behavior on WebKit touch devices
• Generate separate dist files for preflight, utilities, and tailwind for CDN usage

v0.1.2

• Fix issue with config option not being respected in tailwind build
• Target Node 6.9.0 explicitly (instead of 8.6 implicitly) to support more users

v0.1.1

• Fix tailwind build CLI command not writing output files

v0.1.0

Update package.json