SharePoint 2013 - Custom MasterPages and Custom Css

Hello guys,

I have implemented a custom MasterPage in SharePoint 2013 for Publishing site however I m getting some issue with the ribbon.

The MasterPage look and feel should like the Image 1 however when I click on the Ribbon it hides the Title part and some part of the navigation seeImage 2.

Any clue to this.

IMAGE 1

IMAGE 2