Create a custom overlay for an image that is centered horizontally and does not have a fixed width

I'm working with this HTML setup:

<div class="container">
    <img class="image" />
    <div class="overlay">
       <div class="insides">more content here</div>
    </div>
</div>

and trying to style it using this CSS code:

.container {
  position: relative;
  height: 88vh;
  margin: 0;
}

.image {
  height: 100%;
  position: absolute;
  margin-right: auto;
  margin-left: auto;
  left: 0;
  top: 0;  
  bottom: 0;
  right: 0; 
}

.overlay {
  position: absolute;
}

These are the specific requirements I need to meet:

  1. Ensure that the image fills the available vertical space and is centered horizontally. (So far, so good)
  2. Create an overlay of the same size as the image without specifying an exact width. (Currently running into issues with this)
  3. Position icons in precise locations on the image. (I'm considering using percentages for the top and left properties, but it may be more complicated than anticipated.)

Is there a way to achieve all of these specifications - having a horizontally centered image that expands to fill the vertical space, an accurate overlay, and fixed elements on specific parts of the image?

Although I would prefer a CSS workaround, I'm open to also exploring a Javascript solution if it's necessary to dynamically calculate the image width for the overlay.

javascripthtmlcssimageoverlay

Answer №1

Here is a method to achieve this: You can enclose the Image and the Overlay in a div and center it.

.container {
    position: relative;
    height: 88vh;
    margin: 0;
    text-align: center;
}
.imagecontainer
{
    position: relative;
    display: inline-block;
    height: 100%;
}
.image {
    height: 100%;
}
.overlay {
    position: absolute;
    top: 0px;
    left: 0px;
    right: 0px;
    bottom: 0px;
}
<div class="container">
    <div class='imagecontainer'>
        <img class="image" src='imageurlhere'/>
        <div class="overlay">
           <div class="insides">more elements here</div>
        </div>
    </div>
</div>

This way, the Image will determine the width of its parent element, which in turn sets the width of the Overlay as well.

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