Position
Dokumentasi Bootstrap PositionFixed top
Position an element at the top of the viewport, from edge to edge. Be sure you understand the ramifications of fixed position in your project; you may need to add additional CSS.
<div class="fixed-top">...</div>
Fixed bottom
Position an element at the bottom of the viewport, from edge to edge. Be sure you understand the ramifications of fixed position in your project; you may need to add additional CSS.
<div class="fixed-bottom">...</div>
Fixed bottom
Position an element at the top of the viewport, from edge to edge, but only after you scroll past it. The .sticky-top utility uses CSS’s position: sticky, which isn’t fully supported in all browsers.
<div class="sticky-top">...</div>
Position values
Quick positioning classes are available, and they are responsive.
<div class="position-static">...</div>
<div class="position-relative">...</div>
<div class="position-absolute">...</div>
<div class="position-fixed">...</div>
<div class="position-sticky">...</div>
<div class="position-sm-static">...</div>
<div class="position-sm-relative">...</div>
<div class="position-sm-absolute">...</div>
<div class="position-sm-fixed">...</div>
<div class="position-sm-sticky">...</div>
<div class="position-md-static">...</div>
<div class="position-md-relative">...</div>
<div class="position-md-absolute">...</div>
<div class="position-md-fixed">...</div>
<div class="position-md-sticky">...</div>
<div class="position-lg-static">...</div>
<div class="position-lg-relative">...</div>
<div class="position-lg-absolute">...</div>
<div class="position-lg-fixed">...</div>
<div class="position-lg-sticky">...</div>
<div class="position-xl-static">...</div>
<div class="position-xl-relative">...</div>
<div class="position-xl-absolute">...</div>
<div class="position-xl-fixed">...</div>
<div class="position-xl-sticky">...</div>
<div class="position-xxl-static">...</div>
<div class="position-xxl-relative">...</div>
<div class="position-xxl-absolute">...</div>
<div class="position-xxl-fixed">...</div>
<div class="position-xxl-sticky">...</div>
Arrange elements
Arrange elements easily with the edge positioning utilities. The format is {property}-{position}
.
Where property is one of:
top
- for the verticaltop
positionstart
- for the horizontalleft
position (in LTR)bottom
- for the verticalbottom
positionend
- for the horizontalright
position (in LTR)
Where position is one of:
0
- for0
edge position50
- for50%
edge position100
- for100%
edge position
(You can add more position values by adding entries to the $position-values
Sass map variable.)
<div class="top-0">...</div>
<div class="right-0">...</div>
<div class="bottom-0">...</div>
<div class="left-0">...</div>
<div class="top-sm-0">...</div>
<div class="right-sm-0">...</div>
<div class="bottom-sm-0">...</div>
<div class="left-sm-0">...</div>
<div class="top-md-0">...</div>
<div class="right-md-0">...</div>
<div class="bottom-md-0">...</div>
<div class="left-md-0">...</div>
<div class="top-lg-0">...</div>
<div class="right-lg-0">...</div>
<div class="bottom-lg-0">...</div>
<div class="left-lg-0">...</div>
<div class="top-xl-0">...</div>
<div class="right-xl-0">...</div>
<div class="bottom-xl-0">...</div>
<div class="left-xl-0">...</div>
<div class="top-xxl-0">...</div>
<div class="right-xxl-0">...</div>
<div class="bottom-xxl-0">...</div>
<div class="left-xxl-0">...</div>
Center elements
In addition, you can also center the elements with the transform utility class .translate-middle
.
This class applies the transformations translateX(-50%)
and translateY(-50%)
to the element which, in combination with the edge positioning utilities, allows you to absolute center an element.
<div class="position-relative">
<div class="position-absolute top-0 start-0 translate-middle"></div>
<div class="position-absolute top-0 start-50 translate-middle"></div>
<div class="position-absolute top-0 start-100 translate-middle"></div>
<div class="position-absolute top-50 start-0 translate-middle"></div>
<div class="position-absolute top-50 start-50 translate-middle"></div>
<div class="position-absolute top-50 start-100 translate-middle"></div>
<div class="position-absolute top-100 start-0 translate-middle"></div>
<div class="position-absolute top-100 start-50 translate-middle"></div>
<div class="position-absolute top-100 start-100 translate-middle"></div>
</div>
<div class="position-relative">
<div class="position-absolute top-sm-0 start-sm-0 translate-middle-sm"></div>
<div class="position-absolute top-sm-0 start-sm-50 translate-middle-sm"></div>
<div class="position-absolute top-sm-0 start-sm-100 translate-middle-sm"></div>
<div class="position-absolute top-sm-50 start-sm-0 translate-middle-sm"></div>
<div class="position-absolute top-sm-50 start-sm-50 translate-middle-sm"></div>
<div class="position-absolute top-sm-50 start-sm-100 translate-middle-sm"></div>
<div class="position-absolute top-sm-100 start-sm-0 translate-middle-sm"></div>
<div class="position-absolute top-sm-100 start-sm-50 translate-middle-sm"></div>
<div class="position-absolute top-sm-100 start-sm-100 translate-middle-sm"></div>
</div>
<div class="position-relative">
<div class="position-absolute top-lg-0 start-lg-0 translate-middle-lg"></div>
<div class="position-absolute top-lg-0 start-lg-50 translate-middle-lg"></div>
<div class="position-absolute top-lg-0 start-lg-100 translate-middle-lg"></div>
<div class="position-absolute top-lg-50 start-lg-0 translate-middle-lg"></div>
<div class="position-absolute top-lg-50 start-lg-50 translate-middle-lg"></div>
<div class="position-absolute top-lg-50 start-lg-100 translate-middle-lg"></div>
<div class="position-absolute top-lg-100 start-lg-0 translate-middle-lg"></div>
<div class="position-absolute top-lg-100 start-lg-50 translate-middle-lg"></div>
<div class="position-absolute top-lg-100 start-lg-100 translate-middle-lg"></div>
</div>
<div class="position-relative">
<div class="position-absolute top-xl-0 start-xl-0 translate-middle-xl"></div>
<div class="position-absolute top-xl-0 start-xl-50 translate-middle-xl"></div>
<div class="position-absolute top-xl-0 start-xl-100 translate-middle-xl"></div>
<div class="position-absolute top-xl-50 start-xl-0 translate-middle-xl"></div>
<div class="position-absolute top-xl-50 start-xl-50 translate-middle-xl"></div>
<div class="position-absolute top-xl-50 start-xl-100 translate-middle-xl"></div>
<div class="position-absolute top-xl-100 start-xl-0 translate-middle-xl"></div>
<div class="position-absolute top-xl-100 start-xl-50 translate-middle-xl"></div>
<div class="position-absolute top-xl-100 start-xl-100 translate-middle-xl"></div>
</div>
<div class="position-relative">
<div class="position-absolute top-xxl-0 start-xxl-0 translate-middle-xxl"></div>
<div class="position-absolute top-xxl-0 start-xxl-50 translate-middle-xxl"></div>
<div class="position-absolute top-xxl-0 start-xxl-100 translate-middle-xxl"></div>
<div class="position-absolute top-xxl-50 start-xxl-0 translate-middle-xxl"></div>
<div class="position-absolute top-xxl-50 start-xxl-50 translate-middle-xxl"></div>
<div class="position-absolute top-xxl-50 start-xxl-100 translate-middle-xxl"></div>
<div class="position-absolute top-xxl-100 start-xxl-0 translate-middle-xxl"></div>
<div class="position-absolute top-xxl-100 start-xxl-50 translate-middle-xxl"></div>
<div class="position-absolute top-xxl-100 start-xxl-100 translate-middle-xxl"></div>
</div>
By adding .translate-middle-x
or .translate-middle-y
classes, elements can be positioned only in horizontal or vertical direction.
<div class="position-relative">
<div class="position-absolute top-0 start-0"></div>
<div class="position-absolute top-0 start-50 translate-middle-x"></div>
<div class="position-absolute top-0 end-0"></div>
<div class="position-absolute top-50 start-0 translate-middle-y"></div>
<div class="position-absolute top-50 start-50 translate-middle"></div>
<div class="position-absolute top-50 end-0 translate-middle-y"></div>
<div class="position-absolute bottom-0 start-0"></div>
<div class="position-absolute bottom-0 start-50 translate-middle-x"></div>
<div class="position-absolute bottom-0 end-0"></div>
</div>
<div class="position-relative">
<div class="position-absolute top-sm-0 start-sm-0"></div>
<div class="position-absolute top-sm-0 start-sm-50 translate-middle-sm-x"></div>
<div class="position-absolute top-sm-0 end-sm-0"></div>
<div class="position-absolute top-sm-50 start-sm-0 translate-middle-sm-y"></div>
<div class="position-absolute top-sm-50 start-sm-50 translate-middle-sm"></div>
<div class="position-absolute top-sm-50 end-sm-0 translate-middle-sm-y"></div>
<div class="position-absolute bottom-sm-0 start-sm-0"></div>
<div class="position-absolute bottom-sm-0 start-sm-50 translate-middle-sm-x"></div>
<div class="position-absolute bottom-sm-0 end-sm-0"></div>
</div>
<div class="position-relative">
<div class="position-absolute top-lg-0 start-lg-0"></div>
<div class="position-absolute top-lg-0 start-lg-50 translate-middle-lg-x"></div>
<div class="position-absolute top-lg-0 end-lg-0"></div>
<div class="position-absolute top-lg-50 start-lg-0 translate-middle-lg-y"></div>
<div class="position-absolute top-lg-50 start-lg-50 translate-middle-lg"></div>
<div class="position-absolute top-lg-50 end-lg-0 translate-middle-lg-y"></div>
<div class="position-absolute bottom-lg-0 start-lg-0"></div>
<div class="position-absolute bottom-lg-0 start-lg-50 translate-middle-lg-x"></div>
<div class="position-absolute bottom-lg-0 end-lg-0"></div>
</div>
<div class="position-relative">
<div class="position-absolute top-xl-0 start-xl-0"></div>
<div class="position-absolute top-xl-0 start-xl-50 translate-middle-xl-x"></div>
<div class="position-absolute top-xl-0 end-xl-0"></div>
<div class="position-absolute top-xl-50 start-xl-0 translate-middle-xl-y"></div>
<div class="position-absolute top-xl-50 start-xl-50 translate-middle-xl"></div>
<div class="position-absolute top-xl-50 end-xl-0 translate-middle-xl-y"></div>
<div class="position-absolute bottom-xl-0 start-xl-0"></div>
<div class="position-absolute bottom-xl-0 start-xl-50 translate-middle-xl-x"></div>
<div class="position-absolute bottom-xl-0 end-xl-0"></div>
</div>
<div class="position-relative">
<div class="position-absolute top-xxl-0 start-xxl-0"></div>
<div class="position-absolute top-xxl-0 start-xxl-50 translate-middle-xxl-x"></div>
<div class="position-absolute top-xxl-0 end-xxl-0"></div>
<div class="position-absolute top-xxl-50 start-xxl-0 translate-middle-xxl-y"></div>
<div class="position-absolute top-xxl-50 start-xxl-50 translate-middle-xxl"></div>
<div class="position-absolute top-xxl-50 end-xxl-0 translate-middle-xxl-y"></div>
<div class="position-absolute bottom-xxl-0 start-xxl-0"></div>
<div class="position-absolute bottom-xxl-0 start-xxl-50 translate-middle-xxl-x"></div>
<div class="position-absolute bottom-xxl-0 end-xxl-0"></div>
</div>
Examples
Here are some real life examples of these classes:
<button type="button" class="btn btn-primary position-relative">
Mails
<span class="position-absolute top-0 start-100 translate-middle badge rounded-pill bg-secondary">+99 <span class="visually-hidden">unread messages</span></span>
</button>
<button type="button" class="btn btn-dark position-relative">
Marker
<svg width="1em" height="1em" viewBox="0 0 16 16" class="position-absolute top-100 start-50 translate-middle mt-1 bi bi-caret-down-fill" fill="#212529" xmlns="http://www.w3.org/2000/svg"><path d="M7.247 11.14L2.451 5.658C1.885 5.013 2.345 4 3.204 4h9.592a1 1 0 0 1 .753 1.659l-4.796 5.48a1 1 0 0 1-1.506 0z"/></svg>
</button>
<button type="button" class="btn btn-primary position-relative">
Alerts
<span class="position-absolute top-0 start-100 translate-middle badge border border-light rounded-circle bg-danger p-2"><span class="visually-hidden">unread messages</span></span>
</button>
You can use these classes with existing components to create new ones. Remember that you can extend its functionality by adding entries to the $position-values
variable.
<div class="position-relative m-4">
<div class="progress" style="height: 1px;">
<div class="progress-bar" role="progressbar" style="width: 50%;" aria-valuenow="25" aria-valuemin="0" aria-valuemax="100"></div>
</div>
<button type="button" class="position-absolute top-0 start-0 translate-middle btn btn-sm btn-primary btn-icon rounded-pill" style="width: 2rem; height:2rem;">1</button>
<button type="button" class="position-absolute top-0 start-50 translate-middle btn btn-sm btn-primary btn-icon rounded-pill" style="width: 2rem; height:2rem;">2</button>
<button type="button" class="position-absolute top-0 start-100 translate-middle btn btn-sm btn-secondary btn-icon rounded-pill" style="width: 2rem; height:2rem;">3</button>
</div>