Hey Again,

Add this into the Custom CSS box in your Salient Theme Options panel (We write all Custom CSS in the Live Browser to ensure accuracy. If you cannot see any changes, make sure there is no red cross in the Custom CSS Box as any syntax error would cause all CSS under that line of code to not show up on the Frontend):

.wpb_column[data-border-width="1px"].vc_col-sm-6 > .vc_column-inner > .border-wrap >.border-top {
    width: calc(100% - -1px) !important;
}

Thanks

Hey Again,

Use below for Single Line,

Add this into the Custom CSS box in your Salient Theme Options panel (We write all Custom CSS in the Live Browser to ensure accuracy. If you cannot see any changes, make sure there is no red cross in the Custom CSS Box as any syntax error would cause all CSS under that line of code to not show up on the Frontend):

.wpb_column[data-border-width="1px"].vc_col-sm-4\/5 > .vc_column-inner > .border-wrap >.border-top {
    width: calc(100% - -1px) !important;
}

Thanks

Hey Again,

I can't seem to view the CSS on the page. Please check for CSS syntax Errors such as Red Crosses in the Custom CSS field. 

Also its working when i add it to the Live Browser as can be seen in screenshot.

Click on Image to View Larger