Customize line (hr?) after page/post titles for Colorlib theme

Hi! Dazzling theme is really amazing and easy to use, but I’m having a hard time trying to customize the thin line that appears below each page/post title (it can be seen in the demo as well, languages section, right under the title). I want to make it thicker and orange, but I can’t seem to find where to style it. I tried in the css (child theme and also in Others->CSS) changing the values of “hr.section-divider” but nothing happens. Please help!

@cawi

hr.section-divider is for Unite WordPress theme and it has nothing to do with Dazzling theme.

Border below post titles can be styled by adding this simple code to Appearance >> Theme Options >> Other >> Custom CSS

.page-header {
  border-bottom: 5px solid #f00;
}

This example will make image 5px thin and red but you can tweak this code to get the results you were looking for.

Let me know if you need any further assistance.