css - HTML Div border not showing

Question

I'm trying to add a border to a div element in HTML. Below is my code.

#container-border {
  border-width: 2px;
  border-color: red;
}

<div id="container-border">
  ...
</div>

Answer 1

The default value of border-style is none. You need to set a different value for a border to appear.

#container-border {
  border-width: 2px;
  border-color: red;
  border-style: dashed;
}

<div id="container-border">
  ...
</div>