HTML- Center a div horizontally and vertically

In this tutorial, we are going to learn about how to center a div horizontally and vertically in HTML with the help of examples.

Consider, we have the following div element in our HMTL:

<div class="container">
  <h1>Hello, User</h1>
</div>

To center a div horizontally and vertically in HTML, add the display:flex, justify-content: center and align-items: center to the div CSS class.

“justify-content: center” centers the div horizontally.

“align-items: center” centers the div vertically.

Here is an example:

<div class="container">
  <h1>Hello, User</h1>
</div>

CSS:

.container{
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}

or we can add it inline using the style attribute in HTML.

<div style="display: flex;justify-content: center;
            align-items:center;height: 100vh;">
  <h1>Hello, User</h1>
</div>

Centering the div using absolute position

We can use the absolute positioning in html to center the div horizontally and vertically.

Here is an example:

<div class="container">
     <h1>Hello, User</h1>
</div>

.container{
   position:absolute;
   left:50%;
   top:50%;
   transform:translate(-50%, -50%);
}

1. Here we added position:absolute to the div element, so the element breaks out from the normal document flow and positioned to its relative parent (eg: body or parent element).

2. The left:50% moves the element 50% right from its position.

3. The top:50% moves the element 50% down from its position.

4. The translate(-50%, -50%) moves the element 50% up, 50% left of it’s position.