<div class="wrap">
  <div class="p1">这个元素设置了margin-top：10px，writing-mode为vertical-rl。</div>
</div>

<div class="wrap">
  <div class="p2">这个元素设置了margin-block-start：10px，writing-mode为vertical-rl。</div>
</div>
.wrap {
  display: inline-block;
  background-color: orange;
  margin: 20px;
}
.p1,
.p2 {
  background: white;
  writing-mode: vertical-rl;
}
.wrap .p1 {
  margin-top: 10px;
}

.wrap .p2 {
  margin-block-start: 10px;
}

External CSS

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External JavaScript

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