Bootstrap Utilities
For faster mobile-friendly and responsive development, Bootstrap utilities include dozens of classes for showing, hiding, aligning, and spacing content.
Bootstrap Flexbox
Quickly manage the layout, alignment, and sizing of grid columns, navigation, components, and more with a full suite of responsive flexbox utilities. For more complex implementations, custom CSS may be necessary.
I'm a flexbox container!
<div class="d-flex p-2">I'm a flexbox container!</div>
I'm an inline flexbox container!
<div class="d-inline-flex p-2">I'm an inline flexbox container!</div>
Responsive variations also exist for .d-flex
and .d-inline-flex
.
.d-flex
.d-inline-flex
.d-sm-flex
.d-sm-inline-flex
.d-md-flex
.d-md-inline-flex
.d-lg-flex
.d-lg-inline-flex
.d-xl-flex
.d-xl-inline-flex
Bootstrap Align Left
Flex item
Flex item
Flex item
<div class="d-flex justify-content-start mb-3">
<div class="p-2">Flex item</div>
<div class="p-2">Flex item</div>
<div class="p-2">Flex item</div>
</div>
Bootstrap Align Center
Flex item
Flex item
Flex item
<div class="d-flex justify-content-center mb-3">
<div class="p-2">Flex item</div>
<div class="p-2">Flex item</div>
<div class="p-2">Flex item</div>
</div>
Bootstrap Align Right
Flex item
Flex item
Flex item
<div class="d-flex justify-content-end mb-3">
<div class="p-2">Flex item</div>
<div class="p-2">Flex item</div>
<div class="p-2">Flex item</div>
</div>
Bootstrap Text Alignment
Easily realign text to components with text alignment classes.
Bootstrap Text Left
Left aligned text.
<p class="text-start">Left aligned text.</p>
Bootstrap Text Center
Center aligned text.
<p class="text-center">Center aligned text.</p>
Bootstrap Text Right
Right aligned text.
<p class="text-end">Right aligned text.</p>
Bootstrap Responsive Image
Images in Bootstrap are made responsive with .img-fluid
. max-width: 100%;
and height: auto;
are applied to the image so that it scales with the parent element.

<img src="https://raw.githubusercontent.com/creativetimofficial/public-assets/master/soft-ui-design-system/assets/img/window-desk.jpg" class="img-fluid border-radius-lg" alt="Responsive image">