How to Center a Button Both Horizontally and Vertically within a Div

If you have faced the problem of centering a button within a <div>, you can find some solutions in our snippet.

We’ll show step by step how to overcome this problem.

Let’s start with creating HTML.

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Create HTML

Use a <div> with an id “wrapper”.
Add a <button> with a type “button”.

<div id="wrapper">
  <button type="button">W3Docs</button>
</div>

Add CSS

Set the width, height, and border properties for the wrapper.
Specify the height, width, top and left properties for the button.
Set the position to “relative” to place the button relative to its normal position.
Add the margin to the button.

#wrapper {
  width: 100%;
  height: 400px;
  border: 2px solid #000;
}

button {
  height: 20px;
  position: relative;
  margin: -20px -50px;
  width: 100px;
  top: 50%;
  left: 50%;
}

Let’s see the result of our code.

Example of centering a button inside a <div>:

<!DOCTYPE html>
<html>
  <head>
    <title>Title of the document</title>
    <style>
      #wrapper {
        width: 100%;
        height: 400px;
        border: 2px solid #000;
      }
      button {
        height: 20px;
        position: relative;
        margin: -20px -50px;
        width: 100px;
        top: 50%;
        left: 50%;
      }
    </style>
  </head>
  <body>
    <div id="wrapper">
      <button type="button">W3Docs</button>
    </div>
  </body>
</html>

Try it Yourself »

Result

Next, let’s see an example where we use Flexbox to achieve the effect we want.

Example of centering a button inside a <div> using Flexbox:

<!DOCTYPE html>
<html>
  <head>
    <title>Title of the document</title>
    <style>
      #wrapper {
        width: 100%;
        height: 300px;
        border: 2px solid #000;
        display: flex;
        align-items: center;
        justify-content: center;
      }
      button {
        height: 30px;
        width: 90px;
      }
    </style>
  </head>
  <body>
    <div id="wrapper">
      <button type="button">W3Docs</button>
    </div>
  </body>
</html>