CSS tab-size Property - Playground Example

<!DOCTYPE html><html><head><style type="text/css">/* Basic layout */
body {
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial;
  background: #f6f8fa;
  color: #0f172a;
  padding: 24px;
}

/* Container */
.container {
  max-width: 760px;
  margin: 0 auto;
}

/* Sample block */
.sample {
  display: block;
  white-space: pre;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, "Roboto Mono", "Courier New", monospace;
  background: #ffffff;
  border: 1px solid #e6e8eb;
  padding: 12px 14px;
  border-radius: 6px;
  margin-top: 8px;
  overflow: auto;
}

/* Different tab sizes */
.sample.two {
  tab-size: 2;
  -moz-tab-size: 2;
}

.sample.four {
  tab-size: 4;
  -moz-tab-size: 4;
}

.sample.eight {
  tab-size: 8;
  -moz-tab-size: 8;
}

/* Headings */
h1 {
  font-size: 18px;
  margin: 0 0 12px;
}

h2 {
  font-size: 14px;
  margin: 16px 0 6px;
  font-weight: 600;
}
</style></head><body><div class="container">
  <h1>tab-size examples</h1>

  <div class="example">
    <h2>default (browser)</h2>
    <pre class="sample default">Item1	Item2	Item3
LineA	LineB	LineC</pre>
  </div>

  <div class="example">
    <h2>tab-size: 2</h2>
    <pre class="sample two">Item1	Item2	Item3
LineA	LineB	LineC</pre>
  </div>

  <div class="example">
    <h2>tab-size: 4</h2>
    <pre class="sample four">Item1	Item2	Item3
LineA	LineB	LineC</pre>
  </div>

  <div class="example">
    <h2>tab-size: 8</h2>
    <pre class="sample eight">Item1	Item2	Item3
LineA	LineB	LineC</pre>
  </div>
</div></body></html>