Ensure that the height of the div matches the height of the background image

Although I've seen similar questions before, none of the solutions seem to be effective in my case.

In this scenario, there's a div class that has a background image set up:


#index-box{
    border-radius: 20px;
    background: url('/static/images/bg.png') no-repeat;
    background-size: cover;
}

Is it possible to adjust the height of the #index-box div so that the entire background image perfectly fits within it?

Answer №1

If you have the aspect ratio of the image, you can place it in a container with percentage padding and relative position. Then, create another box with full width and height using absolute position for the content. For example, if the original size of the image is 1280X720, the height/width ratio would be 0.5625:

#background {
  position: relative;
  padding-bottom: 56.25%;
  background-image: url('https://i.ytimg.com/vi/MPV2METPeJU/maxresdefault.jpg');
  background-size: cover;
}
#content{
  position: absolute;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
}
<div id="background">
<div id="content">some content<div>
</div>

Another approach is to use the image as an img element within a container. This way, you don't even need to know the aspect-ratio:

#container {
  position: relative;
}
#bg {
  width: 100%;
  display: block;
}
#content{
  position: absolute;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
}
<div id="container">
<img id="bg" src="https://i.ytimg.com/vi/MPV2METPeJU/maxresdefault.jpg"/>
<div id="content">some content</div>
</div>

Answer №2

Consider implementing the following code snippet:

#content-wrapper{
        border-radius: 15px;
        background: url('/assets/images/background.jpg') no-repeat;
        background-size: contain;
    }

Alternatively, you can try this:

body{
    margin: 0;
    padding: 0;
}
#content-wrapper{
    height: 100%;
    border-radius: 15px;
    background: url('/assets/images/background.jpg') no-repeat;
    background-size: cover;
    background-position: center;
}

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