Style is flicking on page refresh about lovelace-card-mod HOT 3 CLOSED

If I do this way, it dont flick and loads css instantlly. In docs it says to avoid this. If followed some examples here: https://github.com/thomasloven/lovelace-card-mod/blob/master/src/example.yaml and it flicks. The only way I find is this way. Any one can explain what i'm doing wrong?

title: Home
icon: 'mdi:home'
path: home

cards:
  - type: custom:mod-card
    card:
      type: vertical-stack
      cards:
        - type: entities
          style: |
            ha-card {
              border-radius: 15px;
              border: 1px solid green;
              background-color: yellow;
            }
          entities:
            - entity: binary_sensor.xxxxxxxxxxxxxxxxxxxxxxxxx
            - entity: binary_sensor.xxxxxxxxxxxxxxxxxxxxxxxxx

Thank's

from lovelace-card-mod.

Did you find another solution or is the custom:mod-card the way to go (for now hopefully)?

from lovelace-card-mod.

Did you find another solution or is the custom:mod-card the way to go (for now hopefully)?

I use some custom cards but ot continue flicking. I can't find any solution. I tried use custom cards locally but it happens, so I think it should be normal :(

from lovelace-card-mod.