Styling the placeholder attribute

<input type="text" placeholder="Add Your Full Name">

::-webkit-input-placeholder {
  opacity: 1;
  color: red;
}

:-moz-placeholder {
  opacity: 1;
  color: red;
}

::-moz-placeholder {
  opacity: 1;
  color: red;
}

:-ms-input-placeholder {
  opacity: 1;
  color: red;
}