Misago/misago/emberapp/app/templates/login-modal.hbs

<div class="modal fade" id="loginModal" tabindex="-1" role="dialog" aria-labelledby="loginModalLabel" aria-hidden="true">
  <div class="modal-dialog modal-sm modal-sign-in">
    <div class="modal-content">
      <div class="modal-header">
        <h4 class="modal-title" id="loginModalLabel">{{gettext "Sign in"}}</h4>
      </div>
      <div class="modal-body">

        <div class="form-group">
          <div class="control-input">
            {{input type="text" value=username class="form-control" placeholder=(gettext "Username or e-mail")}}
          </div>
        </div>

        <div class="form-group">
          <div class="control-input">
            {{input type="password" value=password class="form-control" placeholder=(gettext "Password")}}
          </div>
        </div>

      </div>
      <div class="modal-footer">
        {{#if showActivation}}
        <button class="btn btn-info btn-success">{{gettext "Activate account"}}</button>
        {{else}}
          {{#if isLoading}}
          <button type="button" class="btn btn-block btn-primary" disabled="disabled">
            <span class="fa fa-cog fa-spin"></span>
            {{gettext "Singing in..."}}
          </button>
          {{else}}
          <button type="button" class="btn btn-block btn-primary" {{action "signIn"}}>{{gettext "Sign in"}}</button>
          {{/if}}
        {{/if}}

        <button class="btn btn-block btn-default">{{gettext "Forgot password?"}}</button>

      </div>
    </div>
  </div>
</div>