@vcl/vcl/input/demo/example-validation-state.html

The whole VCL in one package

<div class="input-field error">
  <input class="input" type="text" autocomplete="off" value="Error">
</div>

<div class="input-field warning">
  <input class="input" type="text" autocomplete="off" value="Warning">
</div>

<div class="input-field success">
  <input class="input" type="text" autocomplete="off" value="Success">
</div>