Aligning images of varying sizes

Question

Aligning images of varying sizes

I have implemented a PHP script that automatically resizes images proportionally to fit within a given height and width. For example, if the original picture is 200x100px and the target box is 180x180px, the resized image will be 180x90px.

Although this script works well, I am facing an issue with centering the image inside a div using CSS tricks which usually require knowing the dimensions in advance.

The only solution I have found so far is to create an outer div with display: table; and another div containing the image with

display: table-cell; vertical-align: middle; text-align: center;

.

Are there any other alternatives to achieve this alignment?

css html image centering

Answer 1

Answer №1

It is not recommended to use the text-align property to align images.

"The text-align property is limited in its ability to align elements, as it primarily works for text alignment rather than block-level elements like images. While some browsers may align images or tables using this property, it is not a reliable method." --Jennifer Kyrnin, About.com

An alternative approach is using the deprecated img attribute align="center", although this is not recommended due to mixing tags and style, resulting in unwanted vertical and horizontal spaces around the image.
```
<img src="http://www.lorempixel.com/100/150" align="center"> <-- Avoid using this
```
A better solution is to utilize CSS by setting the image as the background of a div element. This way, the space of the div will be equivalent to the space of the image, allowing you to apply margins for positioning. You can explore other techniques like CSS Tricks's Absolute center an image for more options.

CSS background-image Technique:

background:url('path_to_img') center center no-repeat; /* div center */
background:url('path_to_img') center 0      no-repeat; /* div horizontal center */
background:url('path_to_img') 0      center no-repeat; /* div vertical center */

Answer 2

It is not recommended to use the text-align property to align images.

"The text-align property is limited in its ability to align elements, as it primarily works for text alignment rather than block-level elements like images. While some browsers may align images or tables using this property, it is not a reliable method." --Jennifer Kyrnin, About.com

An alternative approach is using the deprecated img attribute align="center", although this is not recommended due to mixing tags and style, resulting in unwanted vertical and horizontal spaces around the image.
```
<img src="http://www.lorempixel.com/100/150" align="center"> <-- Avoid using this
```
A better solution is to utilize CSS by setting the image as the background of a div element. This way, the space of the div will be equivalent to the space of the image, allowing you to apply margins for positioning. You can explore other techniques like CSS Tricks's Absolute center an image for more options.

CSS background-image Technique:

background:url('path_to_img') center center no-repeat; /* div center */
background:url('path_to_img') center 0      no-repeat; /* div horizontal center */
background:url('path_to_img') 0      center no-repeat; /* div vertical center */

Answer 3

Answer №2

If you're looking to include an image using the img tag without dealing with background images, you can try out this simple method:

Check out this JSFiddle link for a demo

.container
{
    width: 180px;
    height: 180px;
    background-color: #FF0000;
    line-height: 180px;
    font-size: 0;
    text-align: center;
}
.container img {
    vertical-align: middle;
}

By setting font-size to 0 and matching the line-height with the container's height, you can achieve vertical alignment for your images in img tags.

This method allows you to maintain semantic integrity by using img tags instead of background images. It works well when you have a fixed container size but varying image sizes that need centering.

Edit: Explore another demonstration on JSFiddle here: Link to the updated example

In case you need to include text above the image, simply adjust the logic accordingly, as demonstrated with adding 20px space at the top while keeping the overall size at 180 x 180.

Answer 4

If you're looking to include an image using the img tag without dealing with background images, you can try out this simple method:

Check out this JSFiddle link for a demo

.container
{
    width: 180px;
    height: 180px;
    background-color: #FF0000;
    line-height: 180px;
    font-size: 0;
    text-align: center;
}
.container img {
    vertical-align: middle;
}

By setting font-size to 0 and matching the line-height with the container's height, you can achieve vertical alignment for your images in img tags.

This method allows you to maintain semantic integrity by using img tags instead of background images. It works well when you have a fixed container size but varying image sizes that need centering.

Edit: Explore another demonstration on JSFiddle here: Link to the updated example

In case you need to include text above the image, simply adjust the logic accordingly, as demonstrated with adding 20px space at the top while keeping the overall size at 180 x 180.

Aligning images of varying sizes

Answer №1

Answer №2

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