Please fill out this field on search if input query is empty

Sparkling
1

Can I add “Please fill out this field” if I someone empty input on search box ?

Like this : https://db.tt/4FnSI1F8

Thanks

2

Unfortunately, this isn’t part of theme but of some sort of plugin, I am guessing Jetpack and you should look for solution from them or Google around for solution how to get done this for forms.