[Lovelace] Create a header by using `panel: true` with nested stack cards

ui-lovelace.yaml

title: Home
views:
  - title: Header
    icon: mdi:car
    panel: true
    cards:
      - type: vertical-stack
        cards:
          - type: glance
            entities:
              - sun.sun
              - sensor.season
              - sensor.dark_sky_cloud_coverage
              - sensor.dark_sky_humidity
              - sensor.dark_sky_precip_probability
              - sensor.dark_sky_temperature
              - sensor.yr_cloudiness
              - sensor.yr_humidity
              - sensor.yr_precipitation
              - sensor.yr_temperature
          - type: horizontal-stack
            cards:
              - type: vertical-stack
                cards:
                  - type: entities
                    title: Column 1
                    entities:
                      - sensor.date
                      - sensor.time
                      - sensor.startup_time
                      - sensor.uptime
              - type: vertical-stack
                cards:
                  - type: entities
                    title: Column 2
                    entities:
                      - sensor.current_version
                      - sensor.github_version
                      - sensor.pypi_version
              - type: vertical-stack
                cards:
                  - type: entities
                    title: Column 3
                    show_header_toggle: false
                    entities:
                      - script.manual_config_backup
                      - script.reload_config
                      - script.update_hass
                      - script.restart_hass

Thanks for sharing. I'm trying to squeeze more icons into your first panel but the column_width: calc(100% / 7) is not working. Have you tried that? https://www.home-assistant.io/lovelace/glance/#column_width

Thanks. I'm just learning lovelace. I'm having difficulty understanding how to integrate this in with an existing page.

Thanks for sharing. I'm trying to squeeze more icons into your first panel but the column_width: calc(100% / 7) is not working. Have you tried that? https://www.home-assistant.io/lovelace/glance/#column_width

Try columns: 7

Seems like this is not working in the raw config editor.