🔹 Card-mod - Add css styles to any lovelace card

[DaveInPA (david rosner)]

I’m super noob but simply want to reduce the size of the fonts in my card. Have it working in some cards but can’t see to get it working in this horizontal card. In my codef i’m just applying it for now in 2 of the cards in the stack. I’d also like to control the font size of the horizontal stack card itself (the title).

Appreciate any help to get me started…

type: horizontal-stack
title: Living Room
cards:
  - type: button
    tap_action:
      action: toggle
    entity: scene.living_room_hang
    name: Hang Scene
    icon_height: '-4px'
  - type: light
    entity: light.living_room_fireplace
    double_tap_action:
      action: toggle
    name: Fireplace
    card_mod:
      style: |
        ha-card {
        font-size: 10px;
        }
  - type: gauge
    entity: sensor.living_room_trisensor_temperature_measurement
    min: 0
    max: 100
    name: Temp
    card_mod:
      style: |
        ha-card {
        font-size: 8px;
        }
  - type: light
    entity: light.living_room_walls
    double_tap_action:
      action: toggle
    name: Walls

[Ildar_Gabdullin]

@DaveInPA

I’d also like to control the font size of the horizontal stack card itself (the title).

type: 'custom:mod-card'
style:
  hui-vertical-stack-card$: |
    .card-header {
      font-size: 10px !important;
    }
card:
  type: vertical-stack
  title: Changed font
  cards:
  ###################

[DaveInPA (david rosner)]

Thanks! I tried all kinds of combinations but can’t seem to get it formatted or added to my code properly.

So does this “custom:mod-card” type snippet go at the top of the card before my horizontal stack code?

In meantime i’ll spend more time understanding how the custom:mod-card fits into all of this…

[maxym]

card mod is extention to existing cards. it allows to style html entities inside the card. you use it by adding style attribute to every card definition.

However sometimes card-mod cannot reach some outer html objects (styling allows to apply styles to children items while some cards has outer objects unavailable to card-mod). mod-card creates a container with your card inside. This way your whole card turns into mod-card’s child element, allowing to style it from mod-card level

[Ildar_Gabdullin]

Some examples of using "::before", "::after" & "content":
Note: may be used with many Lovelace cards (I hope).

NOTE:
Do not forget to add a "card_mod:" keyword before "style:" (new in card-mod 3).

Prefix & suffix:

type: entities
entities:
  - entity: sun.sun
  - entity: sun.sun
    style:
      hui-generic-entity-row $: |
        .text-content.pointer:not(.info) {
          color: red;
        }
        .text-content.pointer:not(.info)::before {
          content: "XXX - ";
          color: magenta;
        }
        .text-content.pointer:not(.info)::after {
          content: " (elevation {{state_attr(config.entity,'elevation')}})";
          color: orange;
        }
  - entity: sensor.iphone_5s_battery_level
    style:
      hui-generic-entity-row: |
        .text-content {
          color: red;
        }
        .text-content::before {
          content: "Level: ";
          color: red;
        }
        .text-content::after {
          content: " ({{states('sensor.iphone_5s_battery_state')}})";
          color: magenta;
        }

+ undocumented feature for "secondary_info":

type: entities
entities:
  - entity: sun.sun
    secondary_info: true
    style:
      hui-generic-entity-row:
        $: |
          .info .secondary {
            color: red;
          }
          .info .secondary::before {
            content: "Elevation: ";
            color: red;
          }
          .info .secondary::after {
            content: "{{state_attr(config.entity,'elevation')}}";
            color: magenta;
          }

“Undocumented” means that you can use also "secondary_info: bla_bla_bla" instead of "secondary_info: true", it will create a "div" element anyway.

Math operations:

type: entities
entities:
  - entity: sensor.cleargrass_1_co2
    style:
      hui-generic-entity-row: |
        .text-content {
          color: red;
        }
        .text-content::before {
          content: "{{states(config.entity)|int/10}} (divided), ";
          color: magenta;
        }

Replacing a value:

For the Entities card it is enough to set a transparent color for the element keeping the state:

type: entities
entities:
  - entity: sensor.network_throughput_in_eth0_mbits
    name: Network throughput
  - entity: sensor.network_throughput_in_eth0_mbits
    name: Network throughput
    style:
      hui-generic-entity-row: |
        .text-content::after {
          content: "{{states(config.entity)|float*1024}} KBit/s";
          color: var(--primary-text-color);
        }
        .text-content {
          color: transparent;
        }

But for the Glance card I have to set a zero font-size:

type: glance
entities:
  - entity: sensor.network_throughput_in_eth0_mbits
    name: Network throughput
  - entity: sensor.network_throughput_in_eth0_mbits
    name: Network throughput
    style: |
      :host div:not(.name)::after {
        content: "{{states(config.entity)|float*1024}} KBit/s";
        font-size: var(--mdc-typography-body1-font-size, 1rem);
      }
      :host div:not(.name) {
        font-size: 0px;
      }

One more example for “input_boolean” entity:

type: glance
entities:
  - entity: input_boolean.test_boolean
    name: default
  - entity: input_boolean.test_boolean
    name: modded
    style: |
      :host div:not(.name)::after {
        content: "{% if is_state(config.entity,'on') -%}
                  switched ON
                  {%- else -%}
                  switched OFF
                  {%- endif %}";
        font-size: var(--mdc-typography-body1-font-size, 1rem);
      }
      :host div:not(.name) {
        font-size: 0px;
      }

For "multiple-entity-row" it is much tricky:

The original value must be transparent & placed on the next line whose height must be set to 0px:

type: entities
entities:
  - type: 'custom:multiple-entity-row'
    style: |
      .entities-row div.entity:nth-child(1) div::before {
        color: orange;
        content: {%if is_state('sun.sun','above_horizon') -%} "Rise and shine\A" {%- else -%} "Sleep well\A" {%- endif %};
        line-height: var(--mdc-typography-body1-line-height, 1.5rem);
      }
      .entities-row div.entity:nth-child(1) div {
        color: transparent;
        line-height: 0px;
      }
    entity: sun.sun
    entities:
      - entity: sun.sun
        name: xxx
        styles:
          width: 60px
      - entity: sun.sun
        name: xxx
        styles:
          width: 60px
    unit: ''
    icon: ''
    toggle: false
    show_state: false
    state_header: ''
    state_color: false

For badges inside "picture-elements" card:
This trick may be useful since there is no possibility to display any text for the entity’s name (BTW, for badges displayed on the top of views this possibility is present - a “name” property).

type: picture-elements
image: /local/images/blue.jpg
style: |
  ha-card { height: 130px !important; }
elements:
  - type: state-badge
    entity: sensor.cleargrass_1_co2
    style:
      top: 18%
      left: 10%
  - type: state-badge
    entity: sensor.cleargrass_1_co2
    style:
      top: 18%
      left: 30%
    card_mod:
      style:
        ha-state-label-badge:
          $:
            ha-label-badge:
              $:
                .badge-container: |
                  .title {
                    color: transparent;
                    line-height: 0px !important;
                  }
                  .title::before {
                    color: var(--primary-text-color);
                    content: "New name\A";
                    line-height: normal;
                  }

For icons inside “picture-elements” card:

Described here.

custom:multiple-entity-row:
How to display "last-changed" for items:

described here

custom:mini-graph-card:
How to display an additional info on the card:

described here

Any card with a title:
How to add a small header:

described here

---

More examples are described here.

[Klex1404]

I’m trying to use style my markdown-card with the help of card-mod.
But whatever I am trying, nothing wil change the format of the markdown-card.
What am I doing wrong?

      - type: markdown
        style: |
          ha-card {
            font-size: 20px;
            font-family: Quicksand;
            height: 30px;
            background: none;
          }
          ha-markdown {
            padding: 0px 0px 0px 8px !important;
            border-left: 3px solid var(--accent-color);
          }
        content: 'Modi'

[Ildar_Gabdullin]

Styling vertical-stack (horizontal-) card.

Styling a title:

Method #1:

type: 'custom:mod-card'
style: |
  ha-card {
    --ha-card-header-color: red;
    --ha-card-header-font-size: 10px;
  }
card:
  type: vertical-stack
  title: Changed font for title
  cards:
    - type: entities
      entities:
        - entity: sun.sun
        - entity: sun.sun
    - type: entity
      entity: sun.sun

Method #2:

type: 'custom:mod-card'
style:
  hui-vertical-stack-card$: |
    .card-header {
      font-size: 10px !important;
      color: red !important;
    }
card:
  type: vertical-stack
  title: Changed font for title
  cards:
    - type: entities
      entities:
        - entity: sun.sun
        - entity: sun.sun
    - type: entity
      entity: sun.sun

Colored header:

type: 'custom:mod-card'
style:
  hui-vertical-stack-card$: |
    .card-header {
      background-color: green;
    }
card:
  type: vertical-stack
  title: Some title
  cards:
    - type: entities
      entities:
        - entity: sun.sun
        - entity: sun.sun
    - type: entity
      entity: sun.sun

Colored background:

type: 'custom:mod-card'
style: |
  ha-card {
    background-color: red;
  }
card:
  type: vertical-stack
  title: Colored background
  cards:
    - type: entities
      entities:
        - entity: sun.sun
        - entity: sun.sun
    - type: entity
      entity: sun.sun

Using an image for the background:

Notes:

1. The "--ha-card-background" variable is used to style the child cards.
2. The background image is stretched to fit the card’s size.

type: 'custom:mod-card'
style: |
  ha-card {
    background-image: url('/local/images/blue_low_2.jpg');
    background-size: 100% 100%;
    --ha-card-background: rgba(50,50,50,0.3);
  }
card:
  type: vertical-stack
  title: Image for background
  cards:
    - type: entities
      entities:
        - entity: sun.sun
        - entity: sun.sun
    - type: entity
      entity: sun.sun

Using an image for the header:

type: 'custom:mod-card'
style:
  hui-vertical-stack-card$: |
    .card-header {
      background-image: url('/local/images/blue_low_2.jpg');
      background-size: 100% 100%;
    }
card:
  type: vertical-stack
  title: Image for background
  cards:
    - type: entities
      entities:
        - entity: sun.sun
        - entity: sun.sun
    - type: entity
      entity: sun.sun

More styles for vertical-stack:

type: custom:mod-card
card_mod:
  style:
    hui-vertical-stack-card $: |
      hui-card:nth-of-type(1) {
        --ha-card-background: rgba(50,50,50,0.7);
        margin: 0px 150px 150px 20px;
      }
      hui-card:nth-of-type(2) {
        --ha-card-background: rgba(50,50,50,0.1);
        margin: 0px 20px 20px 150px;
      } 
    .: |
      ha-card {
        background-image: linear-gradient(to right, red,orange,yellow,green,blue,indigo,violet);
        --ha-card-header-color: white;
        --ha-card-header-font-size: 40px;
        height: 500px !important;
        border: 4px solid black;
      }
card:
  type: vertical-stack
  title: Some title
  cards:
    - type: entities
      entities:
        - entity: sun.sun
        - entity: sun.sun
    - type: entity
      entity: sun.sun

---

More styles for horizontal-stack:
Example #1:

type: 'custom:mod-card'
style:
  hui-horizontal-stack-card$: |
    hui-entities-card {
      margin-left: 10px !important;
      margin-bottom: 10px !important;
      --ha-card-background: rgba(50,50,50,0.1);
    }
    hui-entity-card {
      margin-right: 10px !important;
      margin-bottom: 10px !important;
      --ha-card-background: rgba(50,50,50,0.7);
    }
  .: |
    ha-card {
      background-color: lightblue;
    }
card:
  type: horizontal-stack
  title: Some title
  cards:
    - type: entities
      entities:
        - entity: sun.sun
        - entity: sun.sun
        - entity: sun.sun
    - type: entity
      entity: sun.sun

Example #2:

type: 'custom:mod-card'
style:
  hui-horizontal-stack-card$: |
    hui-entities-card {
      margin-left: 10px !important;
      margin-right: 10px !important;
      margin-bottom: 10px !important;
      width: 150%;
      flex: auto !important; 
    }
    mini-graph-card {
      margin-right: 10px !important;
      margin-bottom: 10px !important;
      flex: auto !important; 
    }
  .: |
    ha-card {
      background-color: lightblue;
      --ha-card-background: rgba(50,50,50,0.1);
    }
card:
  type: horizontal-stack
  title: Some title
  cards:
    - type: entities
      entities:
        - entity: sun.sun
        - entity: sun.sun
        - entity: sun.sun
    - type: 'custom:mini-graph-card'
      entities:
        - sensor.cleargrass_1_co2
      hours_to_show: 12
      points_per_hour: 60
      show:
        name: false
        icon: false

Example #3:

type: custom:mod-card
card_mod:
  style:
    hui-horizontal-stack-card $: |
      div#root > :first-child > * {
        width: 30%;
        flex: auto; 
      }
      div#root > :last-child > * {
        width: 70%;
        flex: auto; 
      }
card:
  type: horizontal-stack
  cards:
    - type: entity
      entity: sun.sun
    - type: custom:tabbed-card
      tabs:
        ...

Align a title: (added in 2024.6)

type: custom:mod-card
card_mod:
  style: |
    ha-card {--ha-stack-title-text-align: end;}
card:
  type: vertical-stack
  title: xxxxxxxxxx
  cards:
    - type: entity
      entity: sun.sun
    - type: button
      entity: sun.sun

---

More examples are described here.

[KTibow (Kendell R)]

You need to shadow-root for that, I think.

[Klex1404]

How would I do that?
Nothing is working. Is the markdown card even stylable?

[Ildar_Gabdullin]

@Klex1404

Nothing is working. Is the markdown card even stylable?

This is what I got with your code:

Is it what you expect?
If yes - may be you do not have card-mod installed.
If no - what is wrong?

[Klex1404]

It is working now, thanks.
The verification of the code helped me to look elsewhere.
It seemed there was issue with my hacs key for github.
Thanks for your help.

[Ildar_Gabdullin]

An example of using "card-mod" for "multiple-entity-row" to display a "last-changed" for items:

Described here

---

Same method may be used to display ANY text below items.
Even for icons:

code

      - type: custom:multiple-entity-row
        entity: sun.sun
        show_state: false
        entities:
          - entity: sun.sun
            icon: true
            name: false
          - entity: sun.sun
            icon: true
            name: false
          - entity: sun.sun
            icon: true
            name: false
        card_mod:
          style: |
            .entities-row div.entity:nth-child(1) div::after  {
              color: var(--secondary-text-color);
              font-size: 0.7rem;
              content: "\A label";
              white-space: pre;
            }
            .entities-row div.entity:nth-child(2) div::after  {
              color: var(--secondary-text-color);
              font-size: 0.7rem;
              content: "\A {{states('sun.sun')}}";
              white-space: pre;
            }
            .entities-row div.entity:nth-child(3) div::after  {
              color: var(--secondary-text-color);
              font-size: 0.7rem;
              content: "\A {{state_attr('sun.sun','elevation')}}";
              white-space: pre;
            }

[Ildar_Gabdullin]

People, I really need a help with this:

Card-mod - Add css styles to any lovelace card

I gonna ask some probably silly questions (sorry for broken English). I have HA on RPi 3 (docker). My HA setup includes 3 dashboards (for HA itself, for testing things, for testing card-mod), each dashboard includes lots (~10…20) of views. This is all edited in UI, not in yaml files (I know nothing about yaml-mode, it is in my plans). And I use an old card-mod syntax in most cases (99%). Every time when I work with Inspector (Chrome, Win10x64) with views with card-mod, I observe a high CPU …

Can anyone help me?

[DavidFW1960 (David)]

I think it’s all browser related on the PC you are viewing it on and doesn’t impact HA apart from querying HA for the data for that view…

[Ildar_Gabdullin]

Meanwhile trying to create sticky cards (credits to @ASNNetworks).

Tested in 2024.7.1:

title: sticky
path: sticky
cards:

  - type: custom:mod-card
    card_mod:
      style:
        hui-vertical-stack-card $: |
          div#root > :first-child,
          div#root > :last-child {
            z-index: 999;
            position: sticky;
            position: -webkit-sticky;
          }
          div#root > :first-child {
            top: var(--header-height);
          }
          div#root > :last-child {
            bottom: 0;
          }
    card:
      type: vertical-stack
      cards:
        - &ref_glance_4
          type: glance
          entities:
            - entity: sun.sun
            - entity: sun.sun
            - entity: sun.sun
            - entity: sun.sun

        - &ref_glance
          type: glance
          entities:
            - entity: sun.sun
        - *ref_glance
        - *ref_glance

        - type: entities
          entities:
            - entity: sun.sun
            - entity: sun.sun
            - entity: sun.sun
            - entity: sun.sun
            - entity: sun.sun
            - entity: sun.sun
            - entity: sun.sun
            - entity: sun.sun
            - entity: sun.sun
            - entity: sun.sun
            - entity: sun.sun
            - entity: sun.sun

        - *ref_glance_4

before 2024.7

Here two sticky cards - top & bottom:

type: vertical-stack
cards:
  - type: glance
    card_mod:
      style: |
        :host {
          z-index: 999;
          position: sticky;
          position: -webkit-sticky;
          top: var(--header-height);
        }
        ha-card {
          border-style: solid;
          border-radius: 15px;        
        }
    entities:
      - entity: sun.sun
      - entity: sun.sun
      - entity: sun.sun
      - entity: sun.sun
  - type: glance
    entities:
      - entity: sun.sun
  - type: glance
    entities:
      - entity: sun.sun
  - type: glance
    entities:
      - entity: sun.sun
  - type: entities
    entities:
      - entity: sun.sun
      - entity: sun.sun
      - entity: sun.sun
      - entity: sun.sun
      - entity: sun.sun
      - entity: sun.sun
      - entity: sun.sun
      - entity: sun.sun
      - entity: sun.sun
      - entity: sun.sun
      - entity: sun.sun
      - entity: sun.sun
  - type: glance
    card_mod:
      style: |
        :host {
          z-index: 999;
          position: sticky;
          position: -webkit-sticky;
          bottom: 0;
        }
        ha-card {
          border-style: solid;
          border-radius: 15px;        
        }
    entities:
      - entity: sun.sun
      - entity: sun.sun
      - entity: sun.sun
      - entity: sun.sun

Note that "ha-card" styles used for the sticky card itself (borders, background etc), ":host" styles used for the subcontainer inside the main container to make it sticky (sorry if this is not true-CSS-language).
To repeat the same test - copy this code and paste it into the only card into some view.

For the top card I have to set:

        top: var(--header-height);

Works on desktop (Chrome, Win10x64, 1920x1200) and on iPhone 5S as well.

[SebastianMtl (Sébastian)]

Hi
I use card mod for change color of my icons depending it state , but I have an issue.

When I toggle state with Chrome on my PC no problem, When I do it on Safari on my mac or Safari on my iphone the color don’t change until I refresh.
this is the result ( Mac, iPhone safari and HA companion for macOS):

[Ildar_Gabdullin]

Check here

[SebastianMtl (Sébastian)]

Nice job, but I don’t see any problem with my code ?
Have you code to share me with my lights ?

[Ildar_Gabdullin]

@SebastianMtl

my lights ?

This is not about lights, this is about entities.

[SebastianMtl (Sébastian)]

Ok but how can you suggest me with that :

 - type: entities
            entities:
              - entity: light.plafonnier
                card_mod:
                      style: |
                        :host {
                          --card-mod-icon-color: {% if is_state('light.plafonnier', 'on') %} yellow {% else %} white {% endif %}
                        }  
                name: Plafonnier
              - entity: light.lampe_buffet
                card_mod:
                      style: |
                        :host {
                          --card-mod-icon-color: {% if is_state('light.lampe_buffet', 'on') %} yellow {% else %} white {% endif %}
                        }  
                name: Buffet