Stackable Theme

By “footer” I presume you mean header.
Put this code in appearance – customize – additional css, obviously use any color you like.

.site-header {
background: white;
}

Btw your site is very slow. This is mainly due to the size of the images. using an external program you should really resize the images to match your site before you upload them otherwise your visitors browser is left to do that and it will slow the site down considerably. plus your seo will suffer badly. All these images are oversized for the site:

https://dev.robertpyne.net/wp-content/uploads/2019/06/DSC01933-1024×683.jpg is resized in HTML or CSS from 1024×683 to 442×295. Serving a scaled image could save 75.2KiB (81% reduction).
https://dev.robertpyne.net/wp-content/uploads/2019/06/DSC05784-1-1024×683.jpg is resized in HTML or CSS from 1024×683 to 442×295. Serving a scaled image could save 64.8KiB (81% reduction).
https://dev.robertpyne.net/wp-content/uploads/2019/06/DSC03167-1-1024×684.jpg is resized in HTML or CSS from 1024×684 to 442×295. Serving a scaled image could save 63.0KiB (81% reduction).
https://dev.robertpyne.net/wp-content/uploads/2019/06/DSC05981-1-1024×683.jpg is resized in HTML or CSS from 1024×683 to 442×295. Serving a scaled image could save 48.5KiB (81% reduction).
https://dev.robertpyne.net/wp-content/uploads/2019/06/DSC08291-1024×683.jpg is resized in HTML or CSS from 1024×683 to 442×295. Serving a scaled image could save 43.9KiB (81% reduction).
https://dev.robertpyne.net/wp-content/uploads/2019/06/DSC08257-1024×683.jpg is resized in HTML or CSS from 1024×683 to 442×295. Serving a scaled image could save 43.7KiB (81% reduction).
https://dev.robertpyne.net/wp-content/uploads/2019/06/DSC01537-1024×683.jpg is resized in HTML or CSS from 1024×683 to 442×295. Serving a scaled image could save 41.1KiB (81% reduction).
https://dev.robertpyne.net/wp-content/uploads/2019/06/DSC05347-1-1024×683.jpg is resized in HTML or CSS from 1024×683 to 442×295. Serving a scaled image could save 40.4KiB (81% reduction).
https://dev.robertpyne.net/wp-content/uploads/2019/06/DSC00093-1-1024×683.jpg is resized in HTML or CSS from 1024×683 to 442×295. Serving a scaled image could save 32.2KiB (81% reduction).
https://dev.robertpyne.net/wp-content/uploads/2019/06/DSC05603-1024×683.jpg is resized in HTML or CSS from 1024×683 to 442×295. Serving a scaled image could save 26.4KiB (81% reduction).

This site helps evaluate how good your website is performing:

https://gtmetrix.com/reports/dev.robertpyne.net/ST2NIlmd

Hope that helps.

• This reply was modified 5 years, 3 months ago by ??????????????.
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