Add the pageid of the pages you use the transparent header on, for e.g.
.page-id-7517 #header-section:before, .page-id-7517 #header .is-sticky .sticky-header, .page-id-7517 #header-section .is-sticky #main-nav.sticky-header {
background: transparent;
}
.page-id-7517 .header-shadow #header-section:before {
box-shadow:
}
.page-id-7517 .header-shadow #header-section {
box-shadow: none;
}
.page-id-7517 .sticky-header-resized {
background: #FFFFFF!important;
}
.page-id-7517 #header .is-sticky .sticky-header {
box-shadow: none;
}
– Kyle