how to add astrik in html required field code example

Example 1: html5 astrix for absolutely required field inside a td tag

<label class="required">Name:</label>
<input type="text">

<style>
  .required:after {
    content:" *";
    color: red;
  }
</style>

Example 2: red asterix css

<span style="color:#ff0000">*</span>