tab-size property CSS Reference

---

Definition and Usage

The tab-size CSS property is used to customize the width of a tab (U+0009) character.

• Initial 8
• Applies to block containers
• Inherited yes
• Media visual
• Computed Value the specified integer or an absolute length
• Animatable no
• Canonical order the unique non-ambiguous order defined by the formal grammar

---

Syntax

Formal syntax: <integer>

tab-size: 4
tab-size: 0
tab-size: 8
tab-size: inherit

---

Values

<integer>

The number of spaces in a tab. Must be positive.

inherit

Inherits from the parent element.

---

Examples

pre {
  tab-size: 4; /* Set tab size to 4 spaces */
}

pre {
  tab-size: 0; /* Remove indentation */
}

pre {
  tab-size: 99; /* Don't use tabs! */
}

---

Compatibility

Desktop browsers

Mobile browsers