diff --git a/css-flexbox-1/Overview.bs b/css-flexbox-1/Overview.bs
index 0cefeab4696..cf5c75760d1 100644
--- a/css-flexbox-1/Overview.bs
+++ b/css-flexbox-1/Overview.bs
@@ -2382,6 +2382,8 @@ Flex Layout Algorithm
Initial Setup
+ Determine the [=flex items=], including anonymous items:
+
-
Generate anonymous flex items
@@ -2391,6 +2393,9 @@ Initial Setup
Line Length Determination
+ Determine the length of the [=flex lines=] (and thus the space available to the items)
+ as follows:
+
-
Determine the available main and cross space for the flex items.
@@ -2503,6 +2508,9 @@ Line Length Determination
Main Size Determination
+ Lay out items into lines and flex them, resolving their [=main size=]
+ as follows:
+
-
Collect flex items into flex lines:
@@ -2545,6 +2553,10 @@ Main Size Determination
Cross Size Determination
+ Resolve the [=cross size=] of each [=flex line=] and each [=flex item=]
+ as follows,
+ possibly looping back to apply [=main-axis=] space freed from collapsed items.
+
-
Determine the hypothetical cross size of each item
@@ -2640,6 +2652,9 @@ Cross Size Determination
Main-Axis Alignment
+ Align the items within each line along the [=main axis=]
+ as follows:
+
-
Distribute any remaining free space.
@@ -2660,6 +2675,9 @@ Main-Axis Alignment
Cross-Axis Alignment
+ Align the items within each line along the [=cross axis=]
+ as follows:
+
-
Resolve cross-axis auto margins.