FF bug for ::placeholder with transition property

StackOverflow featured section question

by Atif Hassan

HTML

<input placeholder="Sup">
</br>

<p style="display:inline-block">This is the first line.</br> Check it out</p>

CSS

input::-webkit-input-placeholder {
  color:red;
  transition:2s;
}
input:hover::-webkit-input-placeholder {
  color:green
}

p::first-line{
  color: red;
  transition:2s;
}
p:hover::first-line {
  color:green
}