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                <div class="carrousel">
  <a href="#">&larr; Vorige</a>
  <a href="#">Volgende &rarr;</a>


                /* fallback voor Safari
/* wordt niet genegeerd door Chrome/Firefox
/* en dus zichtbaar bij klikken/tikken. 
/* Safari geeft bij hyperlinks geen zichtbare focus.
/* Dat is een feature, geen bug */
.carrousel :any-link:focus {
  outline: 3px solid currentColor;
/* hiermee negeren Chrome/Firefox weer klikken/tikken 
/* Safari negeert de regel omdat :focus-visible onbekend is
/* er staat: 
/* 1. selecteer een hyperlink die niet :focus-visible heeft
/* 2. maar wel de status :focus heeft
/* 3. die afstamt van de klasse .carrousel
.carrousel :any-link:focus:not(:focus-visible) {
  outline: none;
/* effect bij tab-toets */
.carrousel :any-link:focus-visible {
  outline: 3px solid currentColor;

.carrousel {
  align-items: center;
  background: midnightblue;
  display: flex;
  justify-content: space-around;
  width: clamp(20rem, 100%, 64rem);
.carrousel :any-link {
  color: gold;
  font: bold 1.5rem sans-serif;
  margin: 1rem 0;
  padding: 1rem 0.5rem;
  text-decoration: none;