matrix-synapse-diskspace-janitor/frontend/login.gotemplate.html

<div class="horizontal space-around">
  <form action="/" method="POST" class="box vertical">
    <h3>login</h3>
    <input type="text" name="username" placeholder="username"></input>
    <input type="password" name="password" placeholder="password"></input>
    
    <input type="submit" value="Login"></input>
  </form>
</div>