Additional CSS
How to add additional CSS to ensure your share buttons fit in perfectly with your website's styles.
On the styling page for Simple Share Buttons Plus, click the CSS tab then click Additional.

Enter in any Additional CSS you may need/want to into the textarea. This option is perfect for any custom tweaks you wish to apply, or theme overrides that may be required.

Note that CSS added into this field will be appended to the share button styles applied by the plugin itself. If you wish to completely override the CSS see the Custom CSS option.