samples/mail/src/com/google/gwt/sample/mail/client/Tasks.ui.xml

<ui:UiBinder
  xmlns:ui='urn:ui:com.google.gwt.uibinder'
  xmlns:g='urn:import:com.google.gwt.user.client.ui'
  xmlns:mail='urn:import:com.google.gwt.sample.mail.client'>

  <ui:style>
  .tasks {
    padding: 0.5em;
    line-height: 150%;
  }

  .item {
    display: block;
  }

  </ui:style>

  <g:FlowPanel styleName='{style.tasks}'>
    <g:CheckBox styleName='{style.item}'>Get groceries</g:CheckBox>
    <g:CheckBox styleName='{style.item}'>Walk the dog</g:CheckBox>
    <g:CheckBox styleName='{style.item}'>Start Web 2.0 company</g:CheckBox>
    <g:CheckBox styleName='{style.item}'>Write cool app in GWT</g:CheckBox>
    <g:CheckBox styleName='{style.item}'>Get funding</g:CheckBox>
    <g:CheckBox styleName='{style.item}'>Take a vacation</g:CheckBox>
  </g:FlowPanel>
</ui:UiBinder>