<form class="input-parent flex-column">
    <label class="font-size-regular font-weight-600" for="Username">Name</label>
    <input class="input-outline" type="text" id="Username">
    <div class=" font-size-sm color-green-600">Error password should be longer</div>
</form>
<form class="input-parent flex-column">
    <label class="font-size-regular font-weight-600" for="Username">Email</label>
    <input class="input-outline" type="text" id="Username">
    <div class=" font-size-sm color-red-600">email should contain @</div>
</form>