Sushil Adhikari

Actually, instead, you can customize the content wrapper padding just for the home page instead of affecting other pages too (if you prefer this of course). So you may want to just simply do this:

body.home #content-wrapper {
      padding: 0;
#bottom-group {
 padding-top: 0;

That could be all that you need to do…plus use the customizer option settings to change the bottom widget colour to white.