how to add a stroke in css code example

Example 1: css text stroke

.TEXT:hover{
  -webkit-text-stroke-width: 1px; /* 1px Stroke */
  -webkit-text-stroke-color: #ffffff; /* White Color */
  transition: 1s /* Displays in 1 Second */
}

Example 2: css stroke

.module {
  stroke: black;
}