<box xmlns="
http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul">
<stack style="align-items: start; justify-items: left;">
<label style="margin-top: 33px; margin-left: 33px; color: grey;" value="Hello"/>
<label style="margin-top: 30px; margin-left: 30px; color: green;" value="Hello"/>
</stack>
</box>
