Changing image sizes proportionally using CSS?

Question

I have been trying for a couple of days now to configure my thumbnail gallery so all the images appear the same height and width. However when I change the Css code to,

Answer 1

this is a known problem with CSS resizing, unless all images have the same proportion, you have no way to do this via CSS.

The best approach would be to have a container, and resize one of the dimensions (always the same) of the images. In my example I resized the width.

If the container has a specified dimension (in my example the width), when telling the image to have the width at 100%, it will make it the full width of the container. The auto at the height will make the image have the height proportional to the new width.

Ex:

HTML:

CSS:

.container {
    width: 200px;
    height: 120px;
}

/* resize images */
.container img {
    width: 100%;
    height: auto;
}