Having trouble with responsiveness on my box containing a background image. I am aiming for the box to adjust its height based on the background image, as I have set the background-size attribute to auto.
html:
<div class="index_boxs" id="discover_wines_index"></div>
css:
#discover_wines_index {
background-image: url(/bulk/bg/wines_inactive.jpg);
background-repeat: no-repeat;
background-size: 100% auto;
}
If you leave a div empty without setting a height, it will always default to zero. To address this issue, there are several methods you can utilize. One successful approach I have used in the past is known as the Uncle Dave’s Ol’ Padded Box trick.
This technique is similar to what you see above, but involves using background-size: cover and incorporating a percentage-based padding relative to the parent element's width.
Here is an example code snippet from the referenced website:
#meowmeow {
background: url(http://placekitten.com/720/405/) no-repeat center center;
background-size: cover;
height: 0;
padding-bottom: 56.25%; /* 16:9 */
}
To start, create an IMG element to hold the image. This can be done dynamically or statically (and hidden if needed):
<img id="imageid" src="/bulk/bg/wines_inactive.jpg" style="display:none;" />
Next, determine the dimensions of your image:
var img = document.getElementById('imageid');
var width = img.clientWidth;
var height = img.clientHeight;
Now you can adjust the size of your DIV element accordingly. Here is an example using jQuery for resizing:
$('#discover_wines_index').width(width).height(height);
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