Adjust the text placement on an adaptable image according to a particular section of the image

For accessibility reasons, I have an image that requires text to be overlaid on it. The image is responsive thanks to Bootstrap's img-responsive class. I need the text to stay positioned correctly on the image even as its size changes. Is there a way to achieve this using CSS?

Here's a simple example:

<style>
span#mad {
    position: relative;
    top: 440px;
    left: 440px;
}
</style>
<span id="mad">
    Madagascar
</span>
<div id="map">
    <img src="http://www.freeworldmaps.net/printable/africa/countries.png" 
    class="img-responsive"/>
</div>

https://jsfiddle.net/DTcHh/95125/

The text label for Madagascar should always remain above the island.

htmlcssbootstrap-4

Answer №1

Are you in need of static text or dynamic text? It seems like PopperJS could be the solution you're searching for. If your image is not filling up the entire div and causing an unwanted gap, consider giving your image an id so that it can be referenced directly instead of using the wrapping div.

var popper = new Popper(document.getElementById("mad"), document.getElementById("map"), {
    placement: 'bottom'
});

Answer №2

To achieve the desired positioning, you can utilize the child-parent relationship by setting the parent element to have a position of relative and the child element to have a position of absolute.

Since an <img> element cannot have children, you can simulate this behavior by wrapping both the text and the img inside a div element. This allows for the establishment of a child-parent relationship in the layout.

EXAMPLE

div {
  display: inline-block;
  position: relative;
}

div>span {
  position: absolute;
  top: 0;
  right: 0;
}
<div>
  <img src="https://via.placeholder.com/300x200">
  <span>some text</span>
</div>

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