$accordion-heading-background-color: null !default;
$accordion-heading-border-bottom: 1px solid #fff !default;
$accordion-heading-padding: 12px 10px !default;
$accordion-heading-font-size: 1.2em !default;

$accordion-content-padding: 0px 10px !default;

%accordion-title {
    background-color: $accordion-heading-background-color;
    padding: $accordion-heading-padding;
    font-size: $accordion-heading-font-size;
    border: none;
    border-bottom: $accordion-heading-border-bottom;
}
%accordion-content {
    padding: $accordion-content-padding;
}

amp-accordion {
    section {
        > {
            :first-child {
                @extend %accordion-title;
            }
            :last-child {
                @extend %accordion-content;
            }
        }
    }
}