Sticky

<style>
    .ui-sticky {
        top: 70px !important;
    }

    @media (max-width: 960px) {
        .ui-sticky {
            top: 110px !important;
        }
    }
</style>

<div class="card">
    <p:toolbar id="tb">
        <f:facet name="left">
            <p:commandButton type="button" value="New" icon="pi pi-file" styleClass="mr-2" />
            <p:commandButton type="button" value="Open" icon="pi pi-folder-open" styleClass="ui-button-success" />
        </f:facet>
        <f:facet name="right">
            <p:commandButton type="button" title="Save" icon="pi pi-save" styleClass="warn-button mr-2" />
            <p:commandButton type="button" title="Delete" icon="pi pi-trash" styleClass="ui-button-danger mr-2" />
            <p:commandButton type="button" title="Print" icon="pi pi-print" styleClass="ui-button-help" />
        </f:facet>
    </p:toolbar>

    <div style="height:800px"></div>

    <p:sticky target="tb"/>
</div>