Hello,

I checked the “About us” page and there was not specified a height for the slider in Page’s General Settings > Sliders Options > Slider Height. I added the value and the slider is showing ok in mobile too. Please see this screenshot.

-As for the slider in “Specialties” page, i added this code into the page’s custom css box:

 @media (max-width: 480px){
 .swiper-slide.swiper-slide-visible.swiper-slide-active {
       background-size: contain !important;
    background-position: top center !important;
    height: 185px !important;
}
.slider {
    height: 185px !important;
}
}

This is the result: https://pho.to/AeEe0
Let us know.

Best regards!