Twenty Fourteen Wide Screen Image and Wide Screen Texting

I am adding my 3rd Twenty Fourteen WP V4.0 Blog and the 3rd screen has asmall additional image on right next to main image andand the text is center justified and only extends some 7 inches wide total. I want to have a full single screen image and for the text to extend the maximum width available. What is so strange to me is that I have been able to accomplish this with my two previous existing V4.0 WP Twenty Fourteen blogs at https://www.dannorrisblog.com/wp-admin and https://www.lawattorneylegal.com/wp-admin and now I cannot find how I accomplished this. I believe it was with a plug-in however I have gone through most all and have not discovered the solution. Please help me at [Email redacted]. TY.