: The BASE Element
Last updated: 2026-09-12
<base>The BASE Element
Sets the default base URL or default target for all relative URLs; at most one per document, before any URL-bearing element.
| Category | Metadata |
|---|---|
| Content Model | Flow content |
| Allowed Parents | Any element that accepts flow content |
| Content Tag | Self-closing — no closing tag needed |
| Status | Standard |
📝 Syntax
<base href="https://example.com/">
⚙️ Attributes
This element supports the global attributes plus the following:
| Attribute | Value | Description |
|---|---|---|
href | Base address for resolving relative URLs. | |
target | Default target window for links (e.g. _blank). |
▶ Example
Edit the code below and see the live result in the playground:
🌐 Browser Support
| Browser | |||||
|---|---|---|---|---|---|
| <base> | ✓ v1 | ✓ v12 | ✓ v1 | ✓ v1 | ✓ v1 |
| Supported in all major browsers | |||||
Tip: base is a void element; once set, all relative links resolve against it—use with care.
🏷️ Related Tags
💡 Related Cases
More case studies coming soon — check back later.