i want text inside the text field like "your name* "
the color of "your name" should be black and the color of * should be red.
how can i do this??
Please help me.
You cannot; the value of a text input field is plain text.
Put the explanation, including the requiredness indicator if desired, in a label, not into the field. The you can use markup for the indicator, and color it:
<label for=name>Your name<span class=reqd>*</span>:</label>
<input id=name name=name size=40 required>