Remove white space between header banner and body on mobile (Bedford)

Site URL: https://www.katieparker.com.au/about-katie

I want to remove the white space between the header banner and body site-wide when viewing on mobile. I have resized the banners on mobile using the following:

  @media screen and (max-width:640px) {
  .banner-thumbnail-wrapper img {
    width: 100% !important;
    height: auto !important;
    left: 0 !important;
}
  }

Add to Home > Design > Custom CSS

.banner-thumbnail-wrapper.has-description .desc-wrapper {
    margin-bottom: 0;
}

On 8/19/2020 at 12:32 AM, tuanphan said:

Add to Home > Design > Custom CSS

.banner-thumbnail-wrapper.has-description .desc-wrapper {
    margin-bottom: 0;
}

 

I had to include @media only screen and (max-width:640px) to stop it impacting desktop banners, but the white space is still showing on all banners in mobile - any other clues?