[Dmytro]

<Ui xmlns="http://www.blizzard.com/wow/ui/"
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.blizzard.com/wow/ui/
..\FrameXML\UI.xsd">
  <Frame name="SomeFrame">
    <Size x="200" y="300"/>
    <Anchors>
      <Anchor point="LEFT" relativeTo="UIParent" relativePoint="CENTER" />
    </Anchors>
    <Layers>
      <Layer level="BACKGROUND">
        <Texture name="$parentBgTexture" file="Interface\DialogFrame\UI-DialogBox-Background"/>
      </Layer>
      <Layer level="OVERLAY">
        <FontString text="String 11111" inherits="GameFontNormal">
          <Anchors>
            <Anchor point="TOP" relativeTo="Button1" relativePoint="BOTTOM"/>
          </Anchors>
        </FontString>
        <FontString text="String 2" inherits="GameFontNormal" name="String2">
          <Anchors>
            <Anchor point="TOP"  />
          </Anchors>
        </FontString>
      </Layer>
    </Layers>
    <Frames>
      <Button name="Button1" inherits="GameMenuButtonTemplate" text="Button1">
        <Anchors>
          <Anchor point="CENTER"/>
        </Anchors>
      </Button>
      <Button name="Button2" inherits="GameMenuButtonTemplate" text="Button2">
        <Anchors>
          <Anchor point="BOTTOM" relativeTo="Button1" relativePoint="TOP"/>
        </Anchors>

      </Button>
    </Frames>
  </Frame>
</Ui>

Hello, I'm new to wow xml and I have trouble anchoring FontString to Button1,Button2. Anchoring for parent frame works, but when I use <Anchor point="TOP" relativeTo="Button1" relativePoint="BOTTOM"/> on fontString, FontString just disappears, what's the correct way to do it?