snippet_pre_card-basic.xml

<document source="index">
    <section ids="heading" names="heading">
        <title>
            Heading
        <container classes="sd-card sd-sphinx-override sd-mb-3 sd-shadow-sm" design_component="card" is_div="True">
            <container classes="sd-card-body" design_component="card-body" is_div="True">
                <container classes="sd-card-title sd-font-weight-bold" design_component="card-title" is_div="True">
                    <PassthroughTextElement>
                        Card Title
                <paragraph classes="sd-card-text">
                    Card content