What is the best way to align a div of variable size in a container of variable size using CSS?

My website features a 3-level structure that consists of a "workingArea" and an "imageContainer" within it, containing an image.

<div class="workingArea">
 <div class="imageContainer">
  <img class="theImage" />
 </div>
</div>

The size of the "workingArea" is determined by the browser's dimensions through the use of flex in the parent element. On the other hand, the size of the "imageContainer" is dependent on the loaded image, varying with each individual image.

My goal is to center the "imageContainer" within the "workingArea". However, there's a small obstacle: if the "imageContainer" happens to be larger than the "workingArea," I want the center of the image to align with the center of the working area, causing the image to overflow to the left and right.

Although I attempted to use flex properties for centering, I struggled to achieve horizontal alignment alongside vertical alignment.

If you'd like to see a simulation of this issue in JSFiddle, please click here.

Thank you for your help!

cssweb-applicationscentering

Answer №1

An effective method is to set your image as a background image and position it in the center. While I typically advocate for clean and semantic code, in this case, simplicity may be best. By using this approach, you can eliminate the need for additional image containers or markup. The code would appear as follows:

<div class="working_area" style="background: yellow url('http://eofdreams.com/data_images/dreams/bear/bear-05.jpg') center center no-repeat"></div>

If you require the ability to dynamically change the image, you can utilize native JavaScript or jQuery to modify the "working area".

One drawback of this solution is that users will not be able to save or copy the image directly from the browser.

Answer №2

RESOLVED

.working_area {
background-color: yellow;
background:yellow;
width:100%;
overflow:hidden;
display:table;
}

.image_container {
background:red;
display:table-cell;
position:relative;
text-align:center;

}

EXAMPLE :: OPERATING SMOOTHLY

Answer №3

A fool-proof method to tackle this issue would be as follows:

.contentArea {
    display: table;
}
.pictureContainer {
    display: table-cell;
    vertical-align: middle;
    text-align: center;
    width: 100%;
}
.pictureContainer img {
    max-width: 100%;
    height: auto;
}

Check out the demonstration here: http://jsfiddle.net/JFrCq/30/

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