I’d like to find out how do I center Call to Action button?

recently we’re working with the hustle plugin and doing pop ups. We have some struggle with the call-to-action-button. It’s always placed left, but we need it to be centered instead. Is there a css-code that can fix this?
Additionally there is a grey bar around the button at the bottom of the pop up. We need this to be white so there’s no separation beetween an image with white background and the space below.
And one last question question: Is it possible to change the size of the displayed image with css? What’s the code for this?

Thank you in advance for your support.

recently we’re working with the hustle plugin and doing pop ups. We have some struggle with the call-to-action-button. It’s always placed left, but we need it to be centered instead. Is there a css-code that can fix this?
Additionally there is a grey bar around the button at the bottom of the pop up. We need this to be white so there’s no separation beetween an image with white background and the space below.
And one last question question: Is it possible to change the size of the displayed image with css? What’s the code for this?

Thank you in advance for your support.

I would like to place a logo above the primary or secondary call to action button.
Is this possible with css or do I have to alter the theme?

I already tried to place an image link into “Primary call-to-action button text” but it didn’t work.

Here a sample image to see what i would like to accomplish:
https://www.dropbox.com/s/ko32so2uye1df14/bento_logo_header.jpg?dl=0

To add the image/logo to the header background image would not be great, as it would scale and probably be misplaced on different screen resolutions.

Ideally, we would like to have one in the top menu bar but do not know if that is even possible.

I have added another button using the “Maxbuttons” plugin, however, the button appears at the bottom left of the page. I need to have it appear next to the one call to action button that comes with the Sydney Theme, in the middle of the page. I am a beginner at best when it comes to HTML; so any help is really appreciated.

I have searched for threads on this topic such as “https://athemes.com/forums/topic/more-on-extra-buttons/” however, they were not helpful.