CodePen Embed - oNGzLLd

<p class="one">4px outline</p>
<p class="two">thin outline</p>
<p class="three">medium outline</p>
<p class="four">thick outline</p>

p.one {

  outline-style: solid;
  outline-width: 4px;

}

p.two {

  outline-style: solid;
  outline-width: thin;

}

p.three {

  outline-style: solid;
  outline-width: medium;

}

p.four {

  outline-style: solid;
  outline-width: thick;

}

This Pen is owned by sonson on CodePen.

See more by @sonsonct on CodePen

External CSS

This Pen doesn't use any external CSS resources.

External JavaScript

This Pen doesn't use any external JavaScript resources.