docs/theme/_sass/generic/_kbd.scss
kbd {
background-color: #f7f7f7;
border: 1px solid #ccc;
border-radius: 3px;
box-shadow: 0 1px 0 rgba(0, 0, 0, 0.2), 0 0 0 2px #fff inset;
color: #333;
display: inline-block;
font-family: Arial, Helvetica, sans-serif;
font-size: 11px;
line-height: 1.4;
margin: 0 0.1em;
padding: 0.1em 0.6em;
text-shadow: 0 1px 0 #fff;
}