CSS

css outline color

/* Valeurs avec un mot-clé */
outline-color: invert;

/* Valeurs de couleur */
/* Type <color>       */
outline-color: red;
outline-color: #f92525;
outline-color: rgb(30,222,121);

/* Valeurs globales */
outline-color: inherit;
outline-color: initial;
outline-color: unset;

CSS Outline Color

p.ex1 {
  border: 2px solid black;
  outline-style: solid;
  outline-color: red;
}

p.ex2 {
  border: 2px solid black;
  outline-style: dotted;
  outline-color: blue;
}

p.ex3 {
  border: 2px solid black;
  outline-style: outset;
  outline-color: grey;
}