How to place text on an image using CSS

Question

How to place text over an image in CSS?

<div class="image">
    <img src="sample.png"/>
    <div class="text">
       <h2>Some text</h2>
    </div>
</div>

I want to do something like below but I'm stuck, here is my current css

<style>
.image {
   position: relative;
}

h2 {
   position: absolute;
   top: 200px;
   left: 0;
   width: 100%;
   margin: 0 auto;
   width: 300px;
   height: 50px;
}
</style>

I don't get any output from html2pdf when I use a background image:

<style>
#image_container{
    width: 1000px;
    height: 700px;
    background-image:url('switch.png');
}
</style>
<a href="prints.php">Print</a>
<?php ob_start(); ?>
<div id="image_container"></div>
<?php
$_SESSION['sess'] = ob_get_contents();
ob_flush();
?>

This is prints.php:

<?php require_once('html2pdf/html2pdf.class.php'); ?>
<?php
$html2pdf = new HTML2PDF('L', 'A4', 'en');
$html2pdf->writeHTML($_SESSION['sess']);
$html2pdf->Output('random.pdf');
?>

Answer 1

This is another way to use responsive dimensions. It will keep your text centered and maintain its position in the parent. If you don't want it to be centered, it's even easier, just use the absolute parameter. Remember that the main container is using display: inline-block. There are many other ways to achieve this, depending on what you're working with.

Based onUnknown-centered

Here is a working codepen example

HTML

<div class="containerBox">
    <div class="text-box">
        <h4>Your Text is responsive and centered</h4>
    </div>
    <img class="img-responsive" src="http://placehold.it/900x100"/>
</div>

CSS

.containerBox {
   position: relative;
   display: inline-block;
}
.text-box {
   position: absolute;
   height: 100%;
   text-align: center;    
   width: 100%;
}
.text-box:before {
   content: '';
   display: inline-block;
   height: 100%;
   vertical-align: middle;
}
h4 {
   display: inline-block;
   font-size: 20px; /*or whatever you want*/
   color: #FFF;   
}
img {
  display: block;
  max-width: 100%;
  height: auto;
}

Answer 2

How about something like this: http://jsfiddle.net/EgLKV/3/< /p>

Done by positioning the text on the image using position:absolute and z-index.

#container {
  height: 400px;
  width: 400px;
  position: relative;
}
#image {
  position: absolute;
  left: 0;
  top: 0;
}
#text {
  z-index: 100;
  position: absolute;
  color: white;
  font-size: 24px;
  font-weight: bold;
  left: 150px;
  top: 350px;
}

<div id="container">
  <img id="image" src="http://www.noao.edu/image_gallery/images/d4/androa.jpg" />
  <p id="text">
    Hello World!
  </p>
</div>