Line too short

[theSphynx]

Hi as you see in this image https://ibb.co/nnZ8zzt I want to make the first purple line like the second.
in which settings do I need to go?
Please help me.
Thanks for support.

[[ExiTuS]]

No way to help without having a look to the live page.
You are using a third party theme, so nobody knows what your templates and CSS styles actually look like.

[ExiTuS]