Help with CSS for Underline in Headline

Hi GeneratePress Team,

I need help with the underline headline on my homepage, the problem that in heading settings it's aligned centred however this code makes it left. Want the text with underline centred, thanks

I want to achieve this https://ibb.co/yWsGM6x

.headlineforindexstats {
	    box-shadow: 0px -15px 0px #A1EC83 inset;
            display: inline-block;
	    z-index: 2;
	    position: relative;
}