How Do I Add a CSS Class to an Image in WordPress?

Adding a CSS class to an image in WordPress is as simple as copying and pasting the following code into your theme’s style.css file:.img-responsive { max-width: 100%; }

Now that the class has been added, you can use it to style all images in your theme using the img-responsive class. For example, you could style all images to be displayed at their full size on screens larger than 100% width:.img-responsive { max-width: 100%; } .img-responsive img { width: 100%; height: auto; }

Alternatively, you could use the img-responsive class to Target just a specific group of images. For example, you could style all images used in a blog post to be displayed at 100% width, but leave all other images at their default width:

img-responsive { max-width: 100%; } .img-responsive img { width: 100%; height: auto; } .

img-responsive img[class*=”img-responsive”] { width: auto; height: auto; }.

Finally, you can use the img-responsive class to override the default width and height of an image in specific cases. For example, you could set the width and height of an image to be 200% when it is displayed inside a post, and 100% when it is displayed outside a post:.img-responsive img { width: 200%; height: 100%; } .img-responsive img[class*=”img-responsive”] { width: 100%; height: 200%; }.