Image Resize on Mobile

Site URL: https://www.glintcompany.com/technology

Hello,

I'd like to resize images I have in one my sections, but only in the mobile version. From desktop everything is fine, but as you can see from the attachement on mobile they are too big. Does anyone know how I can resize them and make them smaller?

Thanks,

Add to Home > Design > Custom CSS

@media screen and (max-width:640px) {
div#block-yui_3_17_2_1_1584529128047_9976+.row .image-block {
    width: 50%;
    margin-left: auto;
    margin-right: auto;
}
}

Thanks a lot! Amazing job!