How can I change the font of a third party app button?

Hi, we use a third party app called Globo, and it has a ‘notify me when back in stock’ button, I’m looking to change this button’s font to Montserrat, Regular (or it might be Montserrat, Medium) to match the button above. Below is a link and a screenshot.

https://hopsongrace.com/products/langdon-hall?_pos=1&_sid=3314c2fd7&_ss=r

Hi @reblev

You can follow the instruction below:

  1. Go to Online Store->Theme->Edit code
  2. Asset->/theme.css->paste below code at the bottom of the file:
.gBackInStock-Button button {
    font-family: Montserrat,sans-serif;
    font-style: normal;
    font-weight: 500;
    position: relative;
    display: inline-block;
    padding: 15px 24px !important;
    line-height: 1.5;
    letter-spacing: 0.08em;
    text-align: center;
    text-transform: uppercase;
    cursor: pointer;
}

If you feel like my answer is helpful, please mark it as a SOLUTION. Let me know if you have any further questions.