White lines appearing on player background when resizing in browser

I have a project with a solid color background. At certain screen sizes white lines appear on the edge of the player between the right sidebar and the slides or the bottom scroll bar and the slides. I have included an image.

For most screen sizes these white lines do not appear and the background is the solid color. I've tried modifying the advanced color settings but none seem to work. I have even tinkered with the css but nothing seems to address this problem.

Has anyone else with solid color backgrounds had this problem and if so how have you fixed it? 

 

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