angular-docs-cn/tools/api-builder/angular.io-package/templates/layout/_how-to-use.html

{%- if doc.howToUse %}
div(layout="row" layout-xs="column" class="row-margin ng-cloak")
  div(flex="20" flex-xs="100")
    h2(class="h2-api-docs") How to use
  div(flex="80" flex-xs="100")
    :marked
{$ doc.howToUse | indentForMarkdown(6) $}
{% endif %}