so when I put the code into the advanced features of the page in question it successfully removes the header and foot but it also eliminates the background color I have selected.
this is the code I used to remove;
<!-- Remove the Header and Footer (7.1) -->
<style>
#header, #footer-sections {
display: none;
}
in the attached photo you can see that the color is selected to be the background but it is not reflected in the preview or live view of the landing page.
this is the link to the landing page.
https://bmpmediaco.com/welcome-guide