Remove the black line in the header slider

I want to delete the black horizontal line in the slider under LIKE. MATCH. JOB. on this site

Thanks in advance for a quick response.

Hello Samuel,

Please try to use the following CSS code in order to remove that line.

You can add CSS code in DashboardAppearanceCustomizeAdditional CSS (WordPress 4.7 and up). Also you can add CSS code directly to style.css file of your child theme.

.maintitle::after {
    display: none;

Please feel free to ask any other questions that you might have.

Kind Regards, Roman.