<legno-text-areavalue="John"label="Name"error-message="Feltet må ha en verdi!"/>
WARNING
When using plain HTML you need to toggle these css classes manually on the root element:
legno-text-area--has-value adds floating label support
legno-text-area--invalid shows invalid state
<divclass="legno-text-area legno-text-area--has-value legno-text-area--invalid"><inputtype="text"value="John"/><label>Name</label><divclass="legno-text-area__error-message">
Feltet må ha en verdi!
</div></div>