The theme for Wordpress in 2015, also known as

Is there a way to automatically resize and fit the cover picture in the twenty fifteen theme to make it a square cover instead of the default rectangular one? I've been trying to change the dimensions of the cover image container but can't seem to find where to do it. Check out my website at

Answer №1

To customize the dimensions of your post thumbnails, simply add the following code snippet at the end of your theme's CSS file:

.post-thumbnail {
   width:/*enter width value here*/ !important;
   height:/*enter height value here*/ !important;
 }

Remember to replace the placeholder comments "enter width value here" and "enter height value here" with your desired width and height, and remove the asterisks and slashes.

Answer №2

I encountered a similar issue in the past, but I was able to resolve it by utilizing the wordpress function known as "set_post_thumbnail_size"

Here is how you can use it:

 <?php set_post_thumbnail_size( $width, $height, $crop ); ?> 

For further information, you can refer to this link

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