Yo devs ! π₯
A quick guide on "How to center things in CSS" π
Most of the time, you write great CSS code from colors to complex animations.
But I know most of us (beginners) still struggle to center elements on a viewport perfectly.
Don't worry devs, you are no longer be an noob at the end of this short guide.
Let's get started
There are two ways to center any HTML element on a web page :
1. Using Flexbox
2. Using Transform
- Using Flexbox
HTML code as shown below π
<body>
<div class="container">
<div id="object"></div>
</div>
</body>
Now the CSS code
html,
body,
.container {
height: 100%;
overflow: hidden;
}
.container {
display: flex;
justify-content: center;
}
#object {
height: 100px;
width: 100px;
background: red;
align-self: center;
}
- Using Transform
HTML code shown below π
<body>
<div class="element"></div>
</body>
Now the CSS code
.element
{
width: 100px;
height: 100px;
background: coral;
}
.element
{
position: absolute;
top: 50%;
left: 50%;
transform: translate(-50% , -50%);
}
Check out my other posts too π₯
Author: Jayesh π§‘
Top comments (11)
You could also use the old style:
#content {margin: 0 auto;
}
but this works only on block elements, so just add
display: block;for inline elements.Thanks for sharing!
That would only center horizontally though.
Yes, that's right.
Although, to align both horizontally and vertically you can also use
marginin combination withposition.here is an example
I generally use this website: howtocenterincss.com
Nice.
Just to add, I usually give the flex container the responsibility of aligning its children. E.g.
Then any time you add another child, they will automagically align in the centre. In the example above, the children will align in one column because I specified
flex-direction: column;.Demo on CodePen.
Question @mindset ,
Why define the
.elementclass twice on top of each other? Is there an advantage to that?Here's how I would have done it.
Not an advantage, just to separate main transform properties for easy understanding π
Ok. Cool. I typically don't see that style unless it's a mistake. That's why I asked.
If you want to be more OO-like, I would delegate alignment to another class. Then add that class to the class list in the HTML. Like what I've shared with you above. Similar to multiple inheritance.
Then
.demo-boxand.centre-meare reusable.Thanks!
With CSS Grid:
I wrote about it in the following post:
My WebDev Notes: Center page elements with CSS Grid
Habdul Hazeez γ» Apr 3 γ» 3 min read
display: flexfor parentmargin: autofor centered blockFlex for life π§‘
just add to the parent div {
display: flex;
justify-content: center;
align-items: center;
}