public/javascripts/app/templates/splash-screen.html

<!-- HEADER -->
<gu-row skin="header" ng-include src="'/assets/javascripts/app/templates/partials/header.html'"></gu-row>

<gu-row class="splash-screen">
  <gu-column  class="splash-screen__container"
              span="12"
              gu-box="primary"
              ng-controller="SearchFormCtrl as formCtrl">
    <form novalidate name="search"
          class="splash-screen__container__form center"
          ng-submit="formCtrl.formSubmit(search)">
      <label  class="splash-screen__container__form__label">
        Enter a composer url:
      </label>
      <input  class="splash-screen__container__form__input"
              type="text"
              ng-required="true"
              ng-model="search.query"/>
      <gu-btn class="splash-screen__container__form__submit"
              type="submit"
              size="small"
              ng-disabled="!search.query">
        Search
      </gu-btn>
    </form>
  </gu-column>
</gu-row>