https://example.com/action/login?__elgg_token=905adbf0c0111fef78a8344c38c8f2a8&__elgg_ts=1461577445&username=foo&password=bar

action="https://example.com/action/login" method="post" >

<input type="hidden"  name="__elgg_token"  value="905adbf0c0111fef78a8344c38c8f2a8" />

<input type="hidden"  name="__elgg_ts"  value="1461577445" />

<input type="text"   name="username"  value="" class="form-control login-textarea form-control" />

<input type="password"   name="password"  value="" class="form-control login-textarea" />