How to embed custom font with css?

fontembad.css

@font-face {
  font-family: 'unicode';
  src: url(/font/unicode.ttf) format('truetype'); //link to font file
  font-weight: 400;
  font-style: normal;
}
body, html, p, code, *, table, td, tr, span, div, a, ul, li, input, textarea, h1, h2, h3, h4, h5, h6
{
  font-family: 'unicode'; //force to html components
}
.unicode {
  font-family: 'unicode'; // force to specific component
}