underline text using css

h3 {
  text-decoration: underline;
}

text-decoration: underline;

/* Using 'text-decoration' property with 'underline' value. we can draw underline below the text using css */
<style>
p {
  text-decoration: underline;
}
</style>
<p>Hello all Welcome here !!!</p>

h3 {
  text-decoration: underline;
}