The type of layout that is used is determined by the template properties. In the template properties, you have the option to select a desktop and mobile view of your site. If no mobile template is selected, the value will default to Use <Desktop Browsers>. If a different template is selected in the mobile device section, then that layout will render on mobile based devices and browsers. 

To temporarily prevent a mobile layout from displaying, switch the mobile device layout to the Use <Desktop Value> option. This will render the desktop browser version regardless of what device is used to reach that page.