<div>
<kbd><kbd class="key">cmd</kbd>+<kbd class="key">Shift</kbd>+<kbd class="key">alt</kbd></kbd>
  </div>

<div>
<kbd><kbd class="key">ctrl</kbd>+<kbd class="key">j</kbd></kbd>
 </div>

<div>
<kbd><kbd class="key">ctrl</kbd>+<kbd class="key">shift</kbd>
  +<kbd class="key">s</kbd>
  </kbd>
 </div>

div{
  margin:1rem;
}

kbd.key{
  border:1px solid black;
  padding:3px;
  border-radius:4px
}