Hi Melanie,

Thank you for contacting us.

You can use custom css to adjust the size of the fancy box for mobiles. The following below in an example you may need to edit.

@media only screen and (max-width: 690px){
    .nectar-fancy-box[data-style="parallax_hover"] .parallaxImg-rendered-layer > div.bg-img{
        background-position: 0 12%  !important;
    }
    .nectar-fancy-box .meta-wrap{
        min-height: 300px !important;
    }
  
    .nectar-fancy-box[data-style="parallax_hover"] .meta-wrap .inner{
        padding: 10% 0px !important;
        top: 90px;
    }
}

Regards