/* <length> values */
padding-block: 10px 20px; /* An absolute length */
padding-block: 1em 2em; /* relative to the text size */
padding-block: 10px; /* sets both start and end values */

/* <percentage> values */
padding-block: 5% 2%; /* relative to the nearest block container's width */

/* Global values */
padding-block: inherit;
padding-block: initial;
padding-block: revert;
padding-block: revert-layer;
padding-block: unset;

<div>
  <p class="exampleText">Example text</p>
</div>

div {
  background-color: yellow;
  width: 120px;
  height: 120px;
}

.exampleText {
  writing-mode: vertical-rl;
  padding-block: 20px 40px;
  background-color: #c8c800;
}