Extend horizontal line full width

Site URL: https://kdigitalstudio.com/blog

I've tried extending the horizontal line by targeting it in CSS and in a code block. I can only get the line to extend fully to the right. I would like the line to fully extend the span of the page.

On 4/1/2022 at 2:23 AM, kds_on_ss said:

Site URL: https://kdigitalstudio.com/blog

I've tried extending the horizontal line by targeting it in CSS and in a code block. I can only get the line to extend fully to the right. I would like the line to fully extend the span of the page.

You mean line under first section?

Add to Design > Custom CSS

/* horizontal line fullwidth */
div#block-yui_3_17_2_1_1648752294136_3035 hr {
    width: 3000px;
    margin-left: -500px;
}