from80s

<div class="form-group">
    <label for="phone">Telefone <span class="required">*</span></label>
    <input type="text" class="form-control" id="phone" name="phone" placeholder="(99) 9999-9999" pattern="(\([0-9]{2}\))\s([9]{1})?([0-9]{4})-([0-9]{4})" title="Número de telefone precisa ser no formato (99) 9999-9999" required="required" />
</div>

from80s

Ember.Js: Installing Tailwind CSS

TL;DR

$ ember install ember-cli-postcss                   # Install ember-cli-postcss
$ npm install --save-dev tailwindcss                # Install tailwindcss

$ npx tailwind init app/styles/tailwind.config.js   # Optional: Generate a Tailwind config file for your project  
$ npm install -save-dev postcss-import # Optional: If you want to use the @import statement