margin-inline-start

margin-inline-start: 20px;
writing-mode: horizontal-tb;

margin-inline-start: 20px;
writing-mode: vertical-rl;

margin-inline-start: 20%;
writing-mode: horizontal-tb;
direction: rtl;

<section id="default-example">
  <div id="container">
    <div class="col">One</div>
    <div class="col transition-all" id="example-element">Two</div>
    <div class="col">Three</div>
  </div>
</section>

#container {
  width: 300px;
  height: 200px;
  display: flex;
  align-content: flex-start;
  justify-content: flex-start;
}
.col {
  width: 33.33%;
  border: solid #ce7777 10px;
  background-color: #2b3a55;
  color: white;
  flex-shrink: 0;
}
#example-element {
  border: solid 10px #ffbf00;
  background-color: #2b3a55;
  unicode-bidi: bidi-override;
}

/* <length> 値 */
margin-inline-start: 10px; /* 絶対的な長さ */
margin-inline-start: 1em; /* テキストの大きさに対する相対値 */
margin-inline-start: 5%; /* 直近のブロックコンテナーの大きさに対する相対値 */
margin-inline-start: anchor-size(block);
margin-inline-start: calc(anchor-size(--myAnchor width, 30px) / 4);
/* キーワード値 */
margin-inline-start: auto;
/* グローバル値 */
margin-inline-start: inherit;
margin-inline-start: initial;
margin-inline-start: revert;
margin-inline-start: revert-layer;
margin-inline-start: unset;

<div>
  <p class="exampleText">テキストの例</p>
</div>

div {
  background-color: yellow;
  width: 120px;
  height: 120px;
}
.exampleText {
  writing-mode: vertical-lr;
  margin-inline-start: 20px;
  background-color: #c8c800;
}