how to set border under text in html code example

Example 1: how to add a border around text in html

<p style="border:3px; border-style:solid; border-color:#FF0000; padding: 1em;">
  First example with text surrounded by a red border.<br>This example also has multiple lines.
</p>

Example 2: border for text in html

/*All types of border*/
p.dotted {border-style: dotted;}
p.dashed {border-style: dashed;}
p.solid {border-style: solid;}
p.double {border-style: double;}
p.groove {border-style: groove;}
p.ridge {border-style: ridge;}
p.inset {border-style: inset;}
p.outset {border-style: outset;}
p.none {border-style: none;}
p.hidden {border-style: hidden;}
p.mix {border-style: dotted dashed solid double;}