Hover

Specifies what to display once the enclosed content has been hovered over.

Show Text

Displays a single line of text when hovering.

Attribute	Type	Mandatory	Description
value	Markup	yes	Content to display

<hover-text
  value={
    <red>Displayed when hovering</red>
  }
>My text</hover-text>

Show Item

Displays the tooltip of an item when hovering.

Attribute	Type	Mandatory	Description
material	Scalar	no	Material-constant
amount	Scalar	no	Stack-size
name	Markdown	no	Displayname
lore	Markdown	no	Lore-lines

<hover-item
  material="dirt"
  amount=3
  name={
    <red>My dirt</red>
  }
  lore={
    <green>First line</green>
    <br/>
    <aqua>Second line</aqua>
    <br/>
    <gold>Third line</gold>
  }
>My text</hover-item>

Show Entity

Displays a tooltip containing information about an entity within the player's world; note that this only works when advanced tooltips are shown (F3+H); also note that the entity-ID has to exist for the tooltip to render at all; the name may be specified as any arbitrary content.

Attribute	Type	Mandatory	Description
type	Scalar	yes	Entity-Type-constant
id	Scalar	yes	UUID of the entity
name	Markdown	no	Displayname

<hover-entity
  type="pig"
  id="4c3e2990-90d0-4c40-b42d-56ed89ee3a4e"
  name={
    <red>Peppa the pig
  }
>My text</hover-entity>

Show Achievement

Displays a tooltip containing information about the specified achievement; this action has been discontinued on modern versions of Minecraft.

Attribute	Type	Mandatory	Description
value	Scalar	yes	Key of the achievement

<hover-achievement
  value="achievement.mineWood"
>My text</hover-achievement>