There is a problem with the viewing size of my website banner on the mobile side

36 minutes ago, CQURE said:

There is a problem with the viewing size of my website banner on the mobile side, but there is no problem on the computer side. How can I add css to solve this problem?

You'll have problems with these images at all resolutions because of the embedded text. It's better to add the text with titles and descriptions so that the size can be adjusted for different sized devices.

However, to answer your question, you can adjust the size of the slideshow images on mobile by adding the following to Design > Custom CSS and adjusting as necessary.

@media screen and (max-width:767px) {
  .gallery-fullscreen-slideshow[data-width="full-bleed"] {
    height: 24vh !important;
  }
}