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Layout

Bootstrap layout

Components and options for laying out your Bootstrap project, including wrapping containers, a powerful grid system, a flexible media object, and responsive utility classes.


Containers

Containers are the most basic layout element in Bootstrap and are required when using our default grid system. Choose from a responsive, fixed-width container (meaning its max-width changes at each breakpoint) or fluid-width (meaning it’s 100% wide all the time).

While containers can be nested, most layouts do not require a nested container.

A display of a regular container.


            <div class="container">
              <!-- Content here -->
            </div>

          

Container fluid

Use .container-fluid for a full-width container, spanning the entire width of the viewport.

A display of a fluid container.


            <div class="container-fluid">
              <!-- Content here -->
            </div>

          

Responsive breakpoints


Since Bootstrap is developed to be mobile first, we use a handful of media queries to create sensible breakpoints for our layouts and interfaces. These breakpoints are mostly based on minimum viewport widths and allow us to scale up elements as the viewport changes.

Bootstrap primarily uses the following media query ranges—or breakpoints—in our source Sass files for our layout, grid system, and components.



            // Extra small devices (portrait phones, less than 576px)
            // No media query since this is the default in Bootstrap

            // Small devices (landscape phones, 576px and up)
            @media (min-width: 576px) { ... }

            // Medium devices (tablets, 768px and up)
            @media (min-width: 768px) { ... }

            // Large devices (desktops, 992px and up)
            @media (min-width: 992px) { ... }

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

          

Since we write our source CSS in Sass, all our media queries are available via Sass mixins:



            @include media-breakpoint-up(xs) { ... }
            @include media-breakpoint-up(sm) { ... }
            @include media-breakpoint-up(md) { ... }
            @include media-breakpoint-up(lg) { ... }
            @include media-breakpoint-up(xl) { ... }

            // Example usage:
            @include media-breakpoint-up(sm) {
              .some-class {
                display: block;
              }
            }

          

We occasionally use media queries that go in the other direction (the given screen size or smaller):



              // Extra small devices (portrait phones, less than 576px)
              @media (max-width: 575.98px) { ... }

              // Small devices (landscape phones, less than 768px)
              @media (max-width: 767.98px) { ... }

              // Medium devices (tablets, less than 992px)
              @media (max-width: 991px.98) { ... }

              // Large devices (desktops, less than 1200px)
              @media (max-width: 1199.98px) { ... }

              // Extra large devices (large desktops)
              // No media query since the extra-large breakpoint has no upper bound on its width

          

We occasionally use media queries that go in the other direction (the given screen size or smaller):

Note that since browsers do not currently support range context queries, we work around the limitations of min- and max- prefixes and viewports with fractional widths (which can occur under certain conditions on high-dpi devices, for instance) by using values with higher precision for these comparisons.

Once again, these media queries are also available via Sass mixins:



              @include media-breakpoint-down(xs) { ... }
              @include media-breakpoint-down(sm) { ... }
              @include media-breakpoint-down(md) { ... }
              @include media-breakpoint-down(lg) { ... }

          

There are also media queries and mixins for targeting a single segment of screen sizes using the minimum and maximum breakpoint widths.



              // Extra small devices (portrait phones, less than 576px)
              @media (max-width: 575.98px) { ... }

              // Small devices (landscape phones, 576px and up)
              @media (min-width: 576px) and (max-width: 767.98px) { ... }

              // Medium devices (tablets, 768px and up)
              @media (min-width: 768px) and (max-width: 991.98px) { ... }

              // Large devices (desktops, 992px and up)
              @media (min-width: 992px) and (max-width: 1199.98px) { ... }

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

          

These media queries are also available via Sass mixins:



              @include media-breakpoint-only(xs) { ... }
              @include media-breakpoint-only(sm) { ... }
              @include media-breakpoint-only(md) { ... }
              @include media-breakpoint-only(lg) { ... }
              @include media-breakpoint-only(xl) { ... }

          

Similarly, media queries may span multiple breakpoint widths:



              // Example
              // Apply styles starting from medium devices and up to extra large devices
              @media (min-width: 768px) and (max-width: 1199.98px) { ... }

          

The Sass mixin for targeting the same screen size range would be:



            @include media-breakpoint-between(md, xl) { ... }

          

Z-index

Several Bootstrap components utilize z-index, the CSS property that helps control layout by providing a third axis to arrange content. We utilize a default z-index scale in Bootstrap that’s been designed to properly layer navigation, tooltips and popovers, modals, and more.

These higher values start at an arbitrary number, high and specific enough to ideally avoid conflicts. We need a standard set of these across our layered components—tooltips, popovers, navbars, dropdowns, modals—so we can be reasonably consistent in the behaviors. There’s no reason we couldn’t have used 100+ or 500+.

We don’t encourage customization of these values; should you change one, you likely need to change them all.



              $zindex-sticky:            1020 !default;
              $zindex-fixed:             1030 !default;
              $zindex-modal-backdrop:    1040 !default;
              $zindex-modal:             1050 !default;
              $zindex-popover:           1060 !default;
              $zindex-tooltip:           1070 !default;

          

To handle overlapping borders within components (e.g., buttons and inputs in input groups), we use low single digit z-index values of 1, 2, and 3 for default, hover, and active states. On hover/focus/active, we bring a particular element to the forefront with a higher z-index value to show their border over the sibling elements.

Getting started : download & setup


Download

All the components and features are part of MDBootstrap package.

MDBootstrap (Material Design for Bootstrap) is a free (MIT Licensed) framework combining Material Design and the newest Bootstrap 4.

Click the button below to go to Download Page, where you can download MDBootstrap package.

MDBootstrap Download MDBootstrap About

MDB Pro

Using components and features labeled as MDB Pro component requires MDB Pro package.

Click the button below to learn more about MDBbootstrap Pro package

MDBootstrap Pro

Tutorials

If you need additional help to start, use our "5 min Quick Start" or "Full tutorial" resources.

5 min Quick Start Full Tutorial

Compilation

To reduce a weight of MDBootstrap package, you can compile your own, custom package containing only components and features you need.

Map of dependencies of SCSS files in MDBootstrap:


    Legend:

    '-->' means 'required'

    All free and pro files require files from 'core' catalog

    'none' means 'this component doesn't require anything except core files'

    A file wrapped by `< >` means that this file make the base component prettier but it isn't necessary for the proper working

    All PRO components require 'pro/_variables.scss' file

    scss/
    |
    |-- core/
    |   |
    |   |-- bootstrap/
    |   |	|-- _functions.scss
    |   |	|-- _variables.scss
    |   |
    |   |-- _colors.scss
    |   |-- _global.scss
    |   |-- _helpers.scss
    |   |-- _masks.scss
    |   |-- _mixins.scss
    |   |-- _typography.scss
    |   |-- _variables.scss
    |   |-- _waves.scss
    |
    |-- free/
    |   |-- _animations-basic.scss --> none
    |   |-- _animations-extended.scss --> _animations-basic.scss
    |   |-- _buttons.scss --> none
    |   |-- _cards.scss --> none <_buttons.scss>
    |   |-- _dropdowns.scss --> none <_buttons.scss>
    |   |-- _input-group.scss --> _forms.scss, _buttons.scss, _dropdowns.scss
    |   |-- _navbars.scss --> none <_buttons.scss, _forms.scss, _input-group.scss>
    |   |-- _pagination.scss --> none
    |   |-- _badges.scss --> none
    |   |-- _modals.scss --> _buttons.scss, _forms.scss (PRO --> _tabs.scss)
    |   |-- _carousels.scss --> <_buttons.scss>
    |   |-- _forms.scss --> none
    |   |-- _msc.scss --> none <_buttons.scss, _forms.scss, _cards.scss>
    |   |-- _footers.scss none <_buttons.scss> (PRO: )
    |   |-- _list-group.scss --> none
    |   |-- _tables.scss --> none (PRO: _material-select.scss, pro/_forms.scss, _checkbox.scss, pro/_buttons.scss, pro/_cards.scss, _pagination.scss, pro/_msc.scss)
    |   |-- _depreciated.scss
    |
    |-- pro/
    |   |
    |   |-- picker/
    |   |   |-- _default.scss --> none
    |   |   |-- _default-time.scss --> _default.scss, free/_forms.scss, free/_buttons.scss, pro/_buttons.scss, free/_cards.scss
    |   |   |-- _default-date.scss --> _default.scss, free/_forms.scss
    |   |
    |   |-- sections/
    |   |   |-- _templates.scss --> _sidenav.scss
    |   |   |-- _social.scss --> free/_cards.scss, free/ _forms.scss, free/_buttons.scss, pro/_buttons.scss,
    |   |   |-- _team.scss --> free/_buttons.scss, pro/_buttons.scss, free/_cards.scss, pro/_cards.scss
    |   |   |-- _testimonials.scss --> free/_carousels.scss, pro/_carousels.scss, free/_buttons.scss, pro/_buttons.scss
    |   |   |-- _magazine.scss --> _badges.scss
    |   |   |-- _pricing.scss --> free/_buttons.scss, pro/_buttons.scss
    |   |   |-- _contacts.scss --> free/_forms.scss, pro/_forms.scss, free/_buttons.scss, pro/_buttons.scss
    |   |
    |   |-- _variables.scss
    |   |-- _buttons.scss --> free/_buttons.scss, pro/_msc.scss, _checkbox.scss, _radio.scss
    |   |-- _social-buttons.scss --> free/_buttons.scss, pro/_buttons.scss
    |   |-- _tabs.scss --> _cards.scss
    |   |-- _cards.scss --> free/_cards.scss <_buttons.scss, _social-buttons.scss>
    |   |-- _dropdowns.scss --> free/_dropdowns.scss, free/_buttons.scss
    |   |-- _navbars.scss --> free/_navbars.scss  (PRO: )
    |   |-- _scrollspy.scss --> none
    |   |-- _lightbox.scss --> none
    |   |-- _chips.scss --> none
    |   |-- _msc.scss --> none
    |   |-- _forms.scss --> none
    |   |-- _radio.scss --> none
    |   |-- _checkbox.scss --> none
    |   |-- _material-select.scss --> none
    |   |-- _switch.scss --> none
    |   |-- _file-input.scss --> free/_forms.scss, free/_buttons.scss
    |   |-- _range.scss --> none
    |   |-- _input-group.scss --> free/_input-group.scss and the same what free input group, _checkbox.scss, _radio.scss
    |   |-- _autocomplete.scss --> free/_forms.scss
    |   |-- _accordion.scss --> pro/_animations.scss, free/_cards.scss
    |   |-- _parallax.scss --> none
    |   |-- _sidenav.scss --> free/_forms.scss, pro/_animations.scss, sections/_templates.scss
    |   |-- _ecommerce.scss --> free/_cards.scss, pro/_cards.scss, free/_buttons.scss, pro/_buttons.scss, pro/_msc.scss
    |   |-- _carousels.scss --> free/_carousels.scss, free/_cards.scss, free/_buttons.scss 
    |   |-- _steppers.scss --> free/_buttons.scss
    |   |-- _blog.scss --> none
    |   |-- _toasts.scss --> free/_buttons.scss
    |   |-- _animations.scss --> none
    |   |-- _charts.scss --> none
    |   |-- _progress.scss --> none
    |   |-- _scrollbar.scss --> none
    |   |-- _skins.scss --> none
    |   |-- _depreciated.scss
    |
    `-- _custom-skin.scss
    `-- _custom-styles.scss
    `-- _custom-variables.scss
    `-- mdb.scss

  

Map of dependencies of JavaScript modules in MDBootstrap:


    Legend:

    '-->' means 'required'

    All files require jQuery and bootstrap.js

    js/
    ├── dist/
    │   ├── buttons.js
    │   ├── cards.js
    │   ├── character-counter.js
    │   ├── chips.js
    │   ├── collapsible.js --> vendor/velocity.js
    │   ├── dropdown.js --> Popper.js, jquery.easing.js
    │   ├── file-input.js
    │   ├── forms-free.js
    │   ├── material-select.js --> dropdown.js
    │   ├── mdb-autocomplete.js
    │   ├── preloading.js
    │   ├── range-input.js --> vendor/velocity.js
    │   ├── scrolling-navbar.js
    │   ├── sidenav.js --> vendor/velocity.js, vendor/hammer.js, vendor/jquery.hammer.js
    │   └── smooth-scroll.js
    ├── _intro-mdb-pro.js
    ├── modules.js
    ├── src/
    │   ├── buttons.js
    │   ├── cards.js
    │   ├── character-counter.js
    │   ├── chips.js
    │   ├── collapsible.js --> vendor/velocity.js
    │   ├── dropdown.js --> Popper.js, jquery.easing.js
    │   ├── file-input.js
    │   ├── forms-free.js
    │   ├── material-select.js --> dropdown.js
    │   ├── mdb-autocomplete.js
    │   ├── preloading.js
    │   ├── range-input.js --> vendor/velocity.js
    │   ├── scrolling-navbar.js
    │   ├── sidenav.js --> vendor/velocity.js, vendor/hammer.js, vendor/jquery.hammer.js
    │   └── smooth-scroll.js
    └── vendor/
        ├── addons/
        │   ├── datatables.js
        │   └── datatables.min.js
        ├── chart.js
        ├── enhanced-modals.js
        ├── hammer.js
        ├── jarallax.js
        ├── jarallax-video.js --> vendor/jarallax.js
        ├── jquery.easing.js
        ├── jquery.easypiechart.js
        ├── jquery.hammer.js --> vendor/hammer.js
        ├── jquery.sticky.js
        ├── lightbox.js
        ├── picker-date.js --> vendor/picker.js
        ├── picker.js
        ├── picker-time.js --> vendor/picker.js
        ├── scrollbar.js
        ├── scrolling-navbar.js
        ├── toastr.js
        ├── velocity.js
        ├── waves.js
        └── wow.js
  

Compilation & Customization tutorial

If you need additional help to compile your custom package, use our Compilation & Customization tutorial

Compilation & Customization tutorial

Integrations with Angular, React or Vue

Apart from standard Bootstrap integration with jQuery, MDBootstrap provides integrations with Angular, React and Vue.

About MDB Angular About MDB React About MDB Vue