TL;DR — The CSS float property is for positioning elements to the left or the right side of their containers. Differently than position property, the floated element stays as a part of the flow of the page.
Contents
Making Elements Float
Elements with CSS float
property affect the layout of other elements. The text content and images surround floated elements.
In the example, you see CSS float
in action:
.float-box {
   float: left;
   width: 200px;
   height: 100px;
   margin: 20px;
   border: 5px solid black;
}
.other-box {
   clear: left;
}
If you have several HTML elements inside one container, you need to determine how they float.
The float
CSS property is commonly used for wrapping text around images. However, it can be utilized for other elements too.
There are four possible values for the CSSÂ float
 property:Â
left
: elements float on the left side.right
: elements float on the right side.none
: elements do not float.inline-start
: elements float on the start side of the containing block.inline-end
: elements float on the end side of the containing block.
The example below makes CSS float images to the left of the text.
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nullam eu eros eu arcu posuere rutrum vitae in magna. Sed et quam sit amet arcu tempor imperdiet at nec mauris. Mauris facilisis pretium velit, at sodales justo interdum vel.
The example below makes an image float to the right of the text.
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nullam eu eros eu arcu posuere rutrum vitae in magna. Sed et quam sit amet arcu tempor imperdiet at nec mauris. Mauris facilisis pretium velit, at sodales justo interdum vel.
The example below prevents the element from floating:
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nullam eu eros eu arcu posuere rutrum vitae in magna. Sed et quam sit amet arcu tempor imperdiet at nec mauris. Mauris facilisis pretium velit, at sodales justo interdum vel.
Imitating float: center
There is no property called CSS float: center
. However, you can use a combination of properties to reach a similar result.
One option is to use display: flex
and justify-content: center
:
.example1 {
width: 100%;
height: 100%;
border: 2px solid #cc3f85;
display: flex;
justify-content: center;
}
.example2 {
width: 50%;
border: 2px solid #66d9ef;
}
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Controlling Overflow
If the floating element is taller than the element containing it, then the floating element steps out of its container. You can fix this issue with the overflow
 property. Paired with an auto
value, it stretches the container to be big enough for the floating element.
In the example, we fix the overflow problem using the overflow:auto
 method:
Without overflow: auto
With overflow: auto
Note: the overflow property is not specifically designed for clearing floats. Use it carefully to avoid unwanted results.
The following method is preferred over the overflow:auto
 way of fixing this issue. It adds hidden content after the parent element (it clears the float).
Most modern websites use this strategy:
.clearfix:after {
content: ".";
display: block;
height: 0;
clear: both;
visibility: hidden;
}
CSS Float: Useful Tips
- The CSS
float
property does not work if elements havedisplay: none
. - If the
float
property hasinherit
value, the element receives the float value from its parent.