Hello Alex,
i was faced the same problem, and after headache. finally i found solution, i hope that helps you:
1. Open Plugins’s directory into “wp-content“.
2. find “simple-share-buttons-adder” directory.
3. then “inc” directory, into “simple-share-buttons-adder“.
/wp-content/plugins/simple-share-buttons-adder/inc
4. search for “ssba_buttons.php” file
5. search into file by “ssba_facebook“, “ssba_twitter“, “ssba_google“, or “ssba_email“..etc
6. you will find in this section two lines need to add your width & height into. like(in my case):
1st line
Befor
// show selected ssba image
$htmlShareButtons .= ‘<img src=”‘ . plugins_url() . ‘/simple-share-buttons-adder/buttons/’ . $arrSettings[‘ssba_image_set’] . ‘/facebook.png” title=”Facebook” class=”ssba ssba-img” alt=”Share on Facebook” />’;
After
// show selected ssba image
$htmlShareButtons .= ‘<img width=”30px” height=”30px” src=”‘ . plugins_url() . ‘/simple-share-buttons-adder/buttons/’ . $arrSettings[‘ssba_image_set’] . ‘/facebook.png” title=”Facebook” class=”ssba ssba-img” alt=”Share on Facebook” />’;
2nd line
Before
// show custom image
$htmlShareButtons .= ‘<img src=”‘ . $arrSettings[‘ssba_custom_facebook’] . ‘” title=”Facebook” class=”ssba ssba-img” alt=”Share on Facebook” />’;
After
// show custom image
$htmlShareButtons .= ‘<img width=”30px” height=”30px” src=”‘ . $arrSettings[‘ssba_custom_facebook’] . ‘” title=”Facebook” class=”ssba ssba-img” alt=”Share on Facebook” />’;
and you must repet last step for “Twitter”, “Google”, and anything else if you already use
Now, you can run your test and everything will be OK