Making custom button

Hi!

I'm new to coding and I'm attempting to make a custom imagefile work as a button. So when I add a button block, this will be inserted. I have managed to do this (yay!), but am struggling with the text on the button, I want this to be centered both vertically and horizontally, but when I insert this in the code it seems to only apply to the image.

Here is my code so far:

.sqs-block-button-element--large {
    width: 400px !important;
    height: 400px !important;
    background-image: url(imgurl);
    background-repeat: no-repeat;
}


.sqs-block-button-element--large:hover
{   
  width: 400px;
    height: 400px;
    background-image: url(imgurl);
    background-repeat: no-repeat;
}

Can you share link to button on your site?

Difficult to help with only code, without checking button code on live site.

Offcourse, I am working on a trial site though. For now it is here https://tuba-fife-gr7b.squarespace.com/new-page Password: hello