I’ve just dropped the following into the custom CSS, which turns off the layerslider when viewing the web version and adjusting the browser to below 640, however this does still not seem to work on the iphone itself. What would I need to tweak here?

@media only screen and (max-width: 640px){

.ls-wp-fullwidth-container, .ls-wp-fullwidth-helper, .ls-container, .ls-container{

display: none !important;

}

}