Using Bootstrap

About Bootstrap

Bootstrap is "a sleek, intuitive, and powerful mobile first front-end framework for faster and easier web development." This tools makes it a lot simpler to build responsive web sites – meaning websites which adapt their design to the size of the screen, from mobile phone to giant TV.

A Bootstrap design is made of:

Bootstrap uses a whole new way of working on web project that will really benefit all your forthcoming project – even non-PrestaShop ones! We strongly advise to dive into it:

General technical information

Bootstrap uses some specific HTML elements which make it a requirement to use HTML5. Be careful to use the proper HTML5 doctype for all your template files!
Likewise, CSS3 is used for many CSS properties.

<!DOCTYPE html>
<html lang="fr">
...
</html>

Bootstrap 3 is made to be mobile friendly from the start of your project: instead of adding optional mobile styles to your project, these styles are built into the core of the project, ensure that it displays well on all devices.
In order to ensure that your project renders well and that the touch zoom works as expected, you must add the viewport meta tag to your template's head element:

<meta name="viewport" content="width=device-width, initial-scale=1.0">

Bootstrap makes it easy to build a responsive design, and you can use a little trick to make your images responsive too: use Bootstrap's img-responsive class on the image. That class will make your image use max-width: 100%; and height: auto; in order to adapt to the parent element.

<img src="http://example.com/img/image.jpg" class="img-responsive" alt="Description of the image">

Fluid grid system

Bootstrap uses a 12-column grid system, which helps you build a fluid layout. You can use media queries to indicate breakpoints to the grid system, so that it can scale up or down its number of columns depending on the screen size. The default size is tailored for very small screen sizes (up to 480px width, for small phones), so no media query is required there. Bigger screen size are managed using the following queries:

/* Small devices (tablets, 768px and up) */
@media (min-width: @screen-sm) { ... }

/* Medium devices (desktops, 992px and up) */
@media (min-width: @screen-md) { ... }

/* Large devices (large desktops, 1200px and up) */
@media (min-width: @screen-lg) { ... }

Bootstrap uses class prefixes to differentiate devices by their screen sizes:

For instance:

For each device, Bootstrap also provides CSS classes, allowing you to change the column's position:

For instance:

Bootstrap & Sass: Using variables and mixins

Variables

You can configure Bootstrap by editiing the variables in the _variables.scss file. For instance:

@grid-columns: 12;
@grid-gutter-width: 30px;
@grid-float-breakpoint: 768px;

Mixins

A mixin lets you make groups of CSS declarations that you want to reuse throughout your site. For instance:

@mixin border-radius($radius) {
  -webkit-border-radius: $radius;
     -moz-border-radius: $radius;
      -ms-border-radius: $radius;
          border-radius: $radius;
}

.box { @include border-radius(10px); }

You can use use mixins to define new styles. For instance:

.wrapper {
  .make-row();
}
.content-main {
  .make-lg-column(8);
}
.content-secondary {
  .make-lg-column(3);
  .make-lg-column-offset(1);
}

...for the following HTML code:

<div class="wrapper">
  <div class="content-main">...</div>
  <div class="content-secondary">...</div>
</div>

Bootstrap classes

Bootstrap has many default CSS classes, and PrestaShop defines several more, to help you build a consistent design.

Helper classes

These classes are to be used when design an element that uses one of PrestaShop's Helper classes.

Responsive classes

These classes are useful to show/hide an element depending on the device.

Navigation, tabs and menus

The main classes for these contexts are:

Here is an example of a navigation bar with a menu on the right:

<div class="navbar navbar-fixed-top">
  <div class="navbar-inner">
    <div class="container">
      <a class="btn btn-navbar" data-toggle="collapse" data-target=".nav-collapse">
        <span class="icon-th-list"></span></a>
      <a href="#" class="brand">SiteTitle</a>
      <div class="nav-collapse collapse">
        <ul class="nav pull-right">
          <li class="active"><a href="#">Home</a></li>
          <li><a href="#">About Us</a></li>
          <li><a href="#">Contact Us</a></li>
        </ul>
      </div>
    </div>
  </div>
</div>

Here is an example of menu tab:

<ul class="nav nav-tabs">
  <li class="active"><a href="#">Home</a></li>
  <li><a href="#">Profile</a></li>
  <li class="dropdown">
    <a href="#" data-toggle="dropdown" class="dropdown-toggle">Messages <b class="caret"></b></a>
    <ul class="dropdown-menu">
      <li><a href="#">Inbox</a></li>
      <li><a href="#">Drafts</a></li>
      <li class="divider"></li>
      <li><a class="disabled" href="#">Trash</a></li>
    </ul>
  </li>
</ul>

Tables

Main classes for tables:

Sample usage::

<table class="table table-condensed table-hover">
<thead>
  <tr>
    <th>First Name</th>
    <th>Last Name</th>
    <th>Email</th>
  </tr>
</thead>
<tbody>
  <tr class="warning">
    <td>John</td>
    <td>Carter</td>
    <td>[email protected]</td>
  </tr>
  <tr>
    <td>Peter</td>
    <td>Parker</td>
    <td>[email protected]</td>
  </tr>
  <tr>
    <td>John</td>
    <td>Rambo</td>
    <td>[email protected]</td>
    </tr>
  </tbody>
</table>

Panels

Main classes for this context:

Sample usage:

<div class="panel panel-default">
  <div class="panel-heading">
    <h1 class="panel-title">Panel Title</h1>
  </div>
  <div class="panel-body">
      This is the content of the panel.
  </div>
  <div class="panel-footer clearfix">
    <div class="pull-right">
      <a href="#" class="btn btn-default">Go Back</a>
    </div>
  </div>
</div>

Images

Sample usage:

<div class="container">
  <div class="row">
    <div class="col-xs-6">
      <div class="thumbnail">
        <img src="avatar.jpg" alt="Sample Image">
        <div class="caption">
          <h3>label</h3><p>description...</p>
        </div>
      </div>
    </div>
    <div class="col-xs-6">
      <div class="thumbnail">
        <img src="avatar.jpg" alt="Sample Image">
          <div class="caption">
            <h3>label</h3><p>description...</p>
          </div>
      </div>
    </div>
  </div>
</div>

Lists

Main classes:

Breadcrumb example:

<ul class="breadcrumb">
  <li><a href="#">Home</a></li>
  <li><a href="#">Products</a></li>
  <li class="active">Accessories</li>
</ul>

Header and paragraph example:

<div class="list-group">
  <a href="#" class="list-group-item">
    <h4 class="list-group-item-heading">What is HTML?</h4>
    <p class="list-group-item-text">HTML stands for HyperText Markup Language. 
      HTML is the main markup     language for describing the structure of Web pages.</p>
  </a>
  <a href="#" class="list-group-item active">
    <h4 class="list-group-item-heading">What is Twitter Bootstrap?</h4>
    <p class="list-group-item-text">Twitter Bootstrap is a powerful front-end framework for faster 
    and easier web development. It is a collection of HTML and CSS based design template.</p>
  </a>
  <a href="#" class="list-group-item">
    <h4 class="list-group-item-heading">What is CSS?</h4>
    <p class="list-group-item-text">CSS stands for Cascading Style Sheet. CSS allows you to specify 
    various style properties for a given HTML element such as colors, backgrounds, fonts etc.</p>
  </a>
</div>

Forms

Main classes:

A container that has the form-group class always needs a label. To add a label and display it, you must use the sr-only class. For instance:

<div class="form-group">
  <label class="sr-only" for="exampleInput">Email address, label not visible</label>
  <input type="email" class="form-control" id="exampleInput" placeholder="Enter email">
</div>

Classes that change the appearance of zones depending on content validation:

Classes that enable the display of an icon in the textarea:

For instance:

<div class="form-group has-warning">
  <label class="control-label" for="input1">Label with warning</label>
  <input type="text" class="form-control" id="input1">
  <span class="glyphicon glyphicon-warning-sign form-control-feedback"></span>
</div>

Buttons and links

Main classes:

<span class="button ajax_add_to_cart_button btn btn-default disabled">
  <span>{l s='Add to cart'}</span>
</span>
<a itemprop="url" class="button lnk_view btn btn-default" 
    href="{$product.link|escape:'html':'UTF-8'}" title="{l s='View'}">
  <span>{l s='More'}</span>
</a>
<button type="submit" name="submitMessage" id="submitMessage" 
    class="button btn btn-default button-medium">
  <span>{l s='Send'}<i class="icon-chevron-right right"></i></span>
</button>