Hi,
I split your question from https://seatheme.net/forums/topic/background-and-white-line-in-home/#post-21634
1.
Please remove the custom CSS
.container-fluid {
background-color: #efefef;
}
2. Please paste the custom CSS code to “Appearance > Customize: Additional CSS”
.page-id-237 #wrap,
.page-id-237 #header,
.page-id-237 #menu-panel,
.page-id-237.page_from_top.header-scrolled #header,
.page-id-237.page_from_top.header-scrolling.header-sticky-always #header,
.page-id-237 #footer { background-color: #ccc; }
ps: you could adjust the color value #ccc; the 237 is the unique ID for this page(how to find page id), it means that the css only work for this page self.
3. I found there is a border color on your website. Please disable the Background color from the Appearance>Customize or other place. It will break the border color.
body.custom-background {
background-color: #f7f7f7;
}
ps: maybe the step 3 is not necessary
Regards!
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