Thank you so much for using our theme Corporate Plus and we are really feel happy to get you as our user.
1. We checked your site on iphone, but such issue above you mentioned is not found. Would you please provide us the screenshot so that we can know what the issue is exactly?
2. You added the slider title and content long and while viewing on the responsive devices, the read more button goes below. We kindly recommended you to use the title and content little small. We will fix this issue on the next updates.
Thank you so much for pointing the issues.