Textarea placeholder fontsize html css

Question

How do i increase textarea's placeholder font size ? i tried this and it didnt work. thanks.

textarea::placeholder {
  font-size: 20;
}

Answer 1

You forgot the px at the end. That is very important. For example, how does it know if you want px or em?

View this for more information.

textarea::placeholder {
  font-size: 20px;
}

<textarea placeholder="yes"></textarea>