Build a Website

I have a responsive website project that is complete. I am just trying to modify the home page slider and I have things almost perfect as I want them. My only problem is that I need to make a simple adjustment so that the way it will render on a landscape view on an smart phone is better. I think this is a pretty simple fix but I have been having trouble with it. The current site is a Wordpress site. I have a live site version which works well and a testsite version that I am modifying with the new slider. You will be able to refer to the live site to see how the slider should look however the new slider has allows the client to upload a desktop version image and a different image for mobile. Basically, you should apply for this job if you can work fast and efficient, an expert with CSS and responsive layouts and familiar with Wordpress.