Pure.CSS Overview
What is Pure?
Pure is a Cascading Style Sheet (CSS) developed by YAHOO. It helps in creating faster, beautiful, and responsive websites.Some of its salient features are as follows:
- In-built responsive designing
- Standard CSS with minimal footprint
- Set of small, responsive CSS modules
- Free to use
Responsive Design
- Pure has in-built responsive designing so that the website created using Pure will redesign itself as per the device size.
- Pure has a 12 column mobile-first fluid grid that supports responsive classes for small, large, and medium screen sizes.
- Pure classes are created in such a way that the website can fit any screen size.
- The websites created using Pure are fully compatible with PC, tablets, and mobile devices.
Standard CSS
- Pure uses standard CSS only and it is very easy to learn.
- There is no dependency on any external JavaScript library such as jQuery.
Extensible
- Pure is by design very minimal and flat.
- It is designed considering the fact that it is much easier to add new CSS rules than to overwrite existing CSS rules.
- By adding a few lines of CSS, Pure's appearance can be customized to work with an existing web project.
- It supports shadows and bold colors.
- The colors and shades remain uniform across various platforms and devices.
Pure.CSS Environment Setup
How to Use PURE.CSS?
There are two ways to use Pure:- Local Installation - You can download the pure.css file on your local machine and include it in your HTML code.
- CDN Based Version - You can include the pure.css file into your HTML code directly from the Content Delivery Network (CDN).
Local Installation
- Go to http://purecss.io/start/ to download the latest version available.
- Then, put the downloaded pure-min.css file in a directory of your website, e.g. /css.
Example
Now you can include the css file in your HTML file as follows −<html> <head> <title>The PURE.CSS Example</title> <meta name="viewport" content="width=device-width, initial-scale=1"> <link rel="stylesheet" href="css/pure-min.css"> <style> .grids-example { background: rgb(250, 250, 250); margin: 2em auto; border-top: 1px solid #ddd; border-bottom: 1px solid #ddd; font-family: Consolas, 'Liberation Mono', Courier, monospace; text-align: center; } </style> </head> <body> <div class="grids-example"> <div class="pure-g"> <div class="pure-u-1-3"><p>First Column</p></div> <div class="pure-u-1-3"><p>Second Column</p></div> <div class="pure-u-1-3"><p>Third Column</p></div> </div> </div> </body> </html>It will produce the following result −
CDN Based Version
You can include the pure.css file into your HTML code directly from the Content Delivery Network (CDN). yui.yahooapis.com provides content for the latest version.We are using yui.yahooapis.com CDN version of the library throughout this tutorial.
Example
Now let us rewrite the above example using pure.css from PureCSS.io CDN.<html> <head> <title>The PURE.CSS Example</title> <meta name="viewport" content="width=device-width, initial-scale=1"> <link rel="stylesheet" href="https://yui.yahooapis.com/pure/0.6.0/pure-min.css"> <style> .grids-example { background: rgb(250, 250, 250); margin: 2em auto; border-top: 1px solid #ddd; border-bottom: 1px solid #ddd; font-family: Consolas, 'Liberation Mono', Courier, monospace; text-align: center; } </style> </head> <body> <div class="grids-example"> <div class="pure-g"> <div class="pure-u-1-3"><p>First Column</p></div> <div class="pure-u-1-3"><p>Second Column</p></div> <div class="pure-u-1-3"><p>Third Column</p></div> </div> </div> </body> </html>It will produce the following result −
Pure.CSS Responsive Design
PURE.CSS has several special classes to create a responsive design.| S.N. | Class Name & Description |
|---|---|
| 1 | .pure-u-* Sets the container to occupy required space on any device. |
| 2 | .pure-u-sm-* Sets the container to occupy required space on a devices with width ≥ 568px. |
| 3 | .pure-u-md-* Sets the container to occupy required space on a devices with width ≥ 768px. |
| 4 | .pure-u-lg-* Sets the container to occupy required space on a devices with width ≥ 1024px. |
| 5 | .pure-u-xl-* Sets the container to occupy required space on a devices with width ≥ 1280px. |
This is done by adding the .pure-u-1 class for small screens, .pure-u-md-1-2 for medium-sized screens, and .pure-u-lg-1-4 for large screens. Resize the page to see the grid respond to the screen size.
Example
purecss_responsive_design.htm<html> <head> <title>The PURE.CSS Containers</title> <meta name="viewport" content="width=device-width, initial-scale=1"> <link rel="stylesheet" href="https://yui.yahooapis.com/pure/0.6.0/pure-min.css"> <link rel="stylesheet" href="https://yui.yahooapis.com/pure/0.6.0/grids-responsive-min.css"> <style> .grids-example { background: rgb(250, 250, 250); margin: 2em auto; font-family: Consolas, 'Liberation Mono', Courier, monospace; text-align: center; } .graybox { background: rgb(240, 240, 240); border: 1px solid #ddd; } </style> </head> <body> <div class="grids-example"> <div class="pure-g"> <div class="pure-u-1-1"><div class="graybox"><p>These four columns should stack on small screens, should take up width: 50% on medium-sized screens, and should take up width: 25% on large screens.</p></div></div> <div class="pure-u-1 pure-u-md-1-2 pure-u-lg-1-4"><div class="graybox"><p>First Column</p></div></div> <div class="pure-u-1 pure-u-md-1-2 pure-u-lg-1-4"><div class="graybox"><p>Second Column</p></div></div> <div class="pure-u-1 pure-u-md-1-2 pure-u-lg-1-4"><div class="graybox"><p>Third Column</p></div></div> <div class="pure-u-1 pure-u-md-1-2 pure-u-lg-1-4"><div class="graybox"><p>Fourth Column</p></div></div> </div> </div> <div class="grids-example"> <div class="pure-g"> <div class="pure-u-1"><div class="graybox"><p>This column is to occupy the complete space of a row.</p></div></div> </div> </div> <div class="grids-example"> <div class="pure-g"> <div class="pure-u-2-5"><div class="graybox"><p>This column is to occupy the two-fifth of the space of a row.</p></div></div> </div> </div> <div class="grids-example"> <div class="pure-g"> <div class="pure-u-3-5"><div class="graybox"><p>This column is to occupy the three-fifth of the space of a row.</p></div></div> </div> </div> <div class="grids-example"> <div class="pure-g"> <div class="pure-u-1-3"><div class="graybox"><p>Column 1: This column is to occupy the one-third of the space of a row on all devices.</p></div></div> <div class="pure-u-1-3"><div class="graybox"><p>Column 2: This column is to occupy the one-third of the space of a row on all devices.</p></div></div> <div class="pure-u-1-3"><div class="graybox"><p>Column 3: This column is to occupy the one-third of the space of a row on all devices.</p></div></div> </div> </div> </body> </html>
Result
Verify the result.Pure.CSS Grids
PURE.CSS provides concept of Pure Grid with two types of classes, pure-g, a grid class and unit classes, pure-u-*. Following are the rules to use Pure Grids.- Widths of Units are in fractions. For example, pure-u-1-2 represents 1/2 or 50% width, pure-u-2-5 represents 2/5 or 40% width and so on.
- Children of Pure Grid (element with pure-g class) must be using pure-u or pure-u-* classnames.
- All content should to be a part of a grid unit to be rendered properly.
Grid Unit Sizes
Pure Grid comes with 5th and 24th unit sizes. Following illustrations shows the examples of some of the available units which can be appended to pure-ui-. For example, to create a cell of 50% width, you can use a css style pure-ui-1-2.5ths-Based Units
purecss_5th_based.htm<html> <head> <title>The PURE.CSS Grid</title> <meta name="viewport" content="width=device-width, initial-scale=1"> <link rel="stylesheet" href="https://yui.yahooapis.com/pure/0.6.0/pure-min.css"> <link rel="stylesheet" href="https://yui.yahooapis.com/pure/0.6.0/grids-responsive-min.css"> <style> .grids-example { background: rgb(250, 250, 250); margin: 2em auto; font-family: Consolas, 'Liberation Mono', Courier, monospace; text-align: center; } .grid-unit { margin: 0.25em 0; padding-left: 4.5em; } .grid-unit .grid-unit-width { font-family: Consolas, 'Liberation Mono', Courier, monospace; } .grid-unit-bar { height: 2em; background: #eee; } </style> </head> <body> <div class="grids-example"> <div class="grid-unit pure-g"> <div class="grid-unit-width pure-u">1-5</div> <div class="grid-unit-details pure-u-1"> <div class="pure-g"> <div class="grid-unit-bar pure-u-1-5"></div> </div> </div> </div> <div class="grid-unit pure-g"> <div class="grid-unit-width pure-u">2-5</div> <div class="grid-unit-details pure-u-1"> <div class="pure-g"> <div class="grid-unit-bar pure-u-2-5"></div> </div> </div> </div> <div class="grid-unit pure-g"> <div class="grid-unit-width pure-u">3-5</div> <div class="grid-unit-details pure-u-1"> <div class="pure-g"> <div class="grid-unit-bar pure-u-3-5"></div> </div> </div> </div> <div class="grid-unit pure-g"> <div class="grid-unit-width pure-u">4-5</div> <div class="grid-unit-details pure-u-1"> <div class="pure-g"> <div class="grid-unit-bar pure-u-4-5"></div> </div> </div> </div> <div class="grid-unit pure-g"> <div class="grid-unit-width pure-u">1</div> <div class="grid-unit-details pure-u-1"> <div class="pure-g"> <div class="grid-unit-bar pure-u-1"></div> </div> </div> </div> <div class="grid-unit pure-g"> <div class="grid-unit-width pure-u">1-1</div> <div class="grid-unit-details pure-u-1"> <div class="pure-g"> <div class="grid-unit-bar pure-u-1-1"></div> </div> </div> </div> </div> </body> </html>
24ths-Based Units
purecss_24th_based.htm<html> <head> <title>The PURE.CSS Grid</title> <meta name="viewport" content="width=device-width, initial-scale=1"> <link rel="stylesheet" href="https://yui.yahooapis.com/pure/0.6.0/pure-min.css"> <link rel="stylesheet" href="https://yui.yahooapis.com/pure/0.6.0/grids-responsive-min.css"> <style> .grids-example { background: rgb(250, 250, 250); margin: 2em auto; font-family: Consolas, 'Liberation Mono', Courier, monospace; text-align: center; } .grid-unit { margin: 0.25em 0; padding-left: 4.5em; } .grid-unit .grid-unit-width { font-family: Consolas, 'Liberation Mono', Courier, monospace; } .grid-unit-bar { height: 2em; background: #eee; } </style> </head> <body> <div class="grids-example"> <div class="grid-unit pure-g"> <div class="grid-unit-width pure-u">1-24</div> <div class="grid-unit-details pure-u-1"> <div class="pure-g"> <div class="grid-unit-bar pure-u-1-24"></div> </div> </div> </div> <div class="grid-unit pure-g"> <div class="grid-unit-width pure-u">1-12</div> <div class="grid-unit-details pure-u-1"> <div class="pure-g"> <div class="grid-unit-bar pure-u-1-12"></div> </div> </div> </div> <div class="grid-unit pure-g"> <div class="grid-unit-width pure-u">2-24</div> <div class="grid-unit-details pure-u-1"> <div class="pure-g"> <div class="grid-unit-bar pure-u-2-24"></div> </div> </div> </div> <div class="grid-unit pure-g"> <div class="grid-unit-width pure-u">3-24</div> <div class="grid-unit-details pure-u-1"> <div class="pure-g"> <div class="grid-unit-bar pure-u-3-24"></div> </div> </div> </div> <div class="grid-unit pure-g"> <div class="grid-unit-width pure-u">1-8</div> <div class="grid-unit-details pure-u-1"> <div class="pure-g"> <div class="grid-unit-bar pure-u-1-8"></div> </div> </div> </div> <div class="grid-unit pure-g"> <div class="grid-unit-width pure-u">4-24</div> <div class="grid-unit-details pure-u-1"> <div class="pure-g"> <div class="grid-unit-bar pure-u-4-24"></div> </div> </div> </div> <div class="grid-unit pure-g"> <div class="grid-unit-width pure-u">1-6</div> <div class="grid-unit-details pure-u-1"> <div class="pure-g"> <div class="grid-unit-bar pure-u-1-6"></div> </div> </div> </div> <div class="grid-unit pure-g"> <div class="grid-unit-width pure-u">5-24</div> <div class="grid-unit-details pure-u-1"> <div class="pure-g"> <div class="grid-unit-bar pure-u-5-24"></div> </div> </div> </div> <div class="grid-unit pure-g"> <div class="grid-unit-width pure-u">1-4</div> <div class="grid-unit-details pure-u-1"> <div class="pure-g"> <div class="grid-unit-bar pure-u-1-4"></div> </div> </div> </div> <div class="grid-unit pure-g"> <div class="grid-unit-width pure-u">6-24</div> <div class="grid-unit-details pure-u-1"> <div class="pure-g"> <div class="grid-unit-bar pure-u-6-24"></div> </div> </div> </div> <div class="grid-unit pure-g"> <div class="grid-unit-width pure-u">7-24</div> <div class="grid-unit-details pure-u-1"> <div class="pure-g"> <div class="grid-unit-bar pure-u-7-24"></div> </div> </div> </div> <div class="grid-unit pure-g"> <div class="grid-unit-width pure-u">1-3</div> <div class="grid-unit-details pure-u-1"> <div class="pure-g"> <div class="grid-unit-bar pure-u-1-3"></div> </div> </div> </div> <div class="grid-unit pure-g"> <div class="grid-unit-width pure-u">22-24</div> <div class="grid-unit-details pure-u-1"> <div class="pure-g"> <div class="grid-unit-bar pure-u-22-24"></div> </div> </div> </div> <div class="grid-unit pure-g"> <div class="grid-unit-width pure-u">23-24</div> <div class="grid-unit-details pure-u-1"> <div class="pure-g"> <div class="grid-unit-bar pure-u-23-24"></div> </div> </div> </div> <div class="grid-unit pure-g"> <div class="grid-unit-width pure-u">1</div> <div class="grid-unit-details pure-u-1"> <div class="pure-g"> <div class="grid-unit-bar pure-u-1"></div> </div> </div> </div> <div class="grid-unit pure-g"> <div class="grid-unit-width pure-u">1-1</div> <div class="grid-unit-details pure-u-1"> <div class="pure-g"> <div class="grid-unit-bar pure-u-1-1"></div> </div> </div> </div> <div class="grid-unit pure-g"> <div class="grid-unit-width pure-u">24-24</div> <div class="grid-unit-details pure-u-1"> <div class="pure-g"> <div class="grid-unit-bar pure-u-24-24"></div> </div> </div> </div> </div> </body> </html>
Pure.CSS Forms
PURE.CSS has a very beautiful and responsive CSS for form designing. The following CSS are used:| S.N. | Class Name & Description |
|---|---|
| 1 | pure-form Represents a compact inline form. |
| 2 | pure-form-stacked Represents a stacked form with input elements below the labels. To be used with pure-form. |
| 3 | pure-form-aligned Represents an aligned form with input elements below the labels. To be used with pure-form. |
| 4 | pure-input-rounded Displays a form control with rounded corners |
| 5 | pure-button Beautifies a button. |
| 6 | pure-checkbox Beautifies a checkbox. |
| 7 | pure-radio Beautifies a radio. |
Example
purecss_forms.htm<html> <head> <title>The PURE.CSS Forms</title> <meta name="viewport" content="width=device-width, initial-scale=1"> <link rel="stylesheet" href="https://yui.yahooapis.com/pure/0.6.0/pure-min.css"> </head> <body> <form class="pure-form pure-form-aligned"> <fieldset> <div class="pure-control-group"> <label for="name">Username</label> <input id="name" type="text" placeholder="Username" required> </div> <div class="pure-control-group"> <label for="email">Email</label> <input id="email" type="text" placeholder="Email Address" required> </div> <div class="pure-control-group"> <label for="comments">Comments</label> <input id="comments" type="text" placeholder="Comments"> </div> <div class="pure-controls"> <label for="married" class="pure-checkbox"> <input id="married" type="checkbox" checked="checked"> Married </label> <br> <label for="single" class="pure-checkbox"> <input id="single" type="checkbox"> Single </label> <br> <label for="dontknow" class="pure-checkbox"> <input id="dontknow" type="checkbox" disabled> Don't know (Disabled) </label> <br> <br> </div> <div class="pure-controls"> <label for="male" class="pure-radio"> <input id="male" type="radio" name="gender" value="male" checked> Male </label> <br> <label for="female" class="pure-radio"> <input id="female" type="radio" name="gender" value="female"> Female </label> <br> <label for="dontknow1" class="pure-radio"> <input id="dontknow1" type="radio" name="gender" value="female" disabled> Don't know (Disabled) </label> <button type="submit" class="pure-button pure-button-primary">Submit</button> </div> </fieldset> </form> </body> </html>
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