@@ -0,0 +1,23 @@
+---
+category: Layout
+---
+
+# Col
+
+One block on the grid. `span` is how many of the twelve columns it occupies; `start` is the
+column it begins at, counting from 1.
+
+Use `start` to leave a gap. An offset block is the house style: content that begins at
+column 7 or 9 rather than immediately after its neighbour reads as deliberate, and the empty
+columns are doing work.
+
+A full-width block is `span={12}`, which is also the default.
+
+```jsx
+<Col span={5} start={8}>
+  <Text measure>Every interface between components is an attack surface.</Text>
+</Col>
+```
+
+Astro equivalent: `<div style="grid-column: 8 / span 5;">`. Grid positions are the one place
+a raw number is allowed; every other value comes from a token.