diff --git a/controlcandidates.md b/controlcandidates.md
index f8433e8..16c1a65 100644
--- a/controlcandidates.md
+++ b/controlcandidates.md
@@ -58,7 +58,7 @@ COCOA
 
 # Slider Capabilities
 Capability | Windows | GTK+ | Cocoa
-- | - | - | -
+----- | ----- | ----- | -----
 Data Type | int | float | TODO
 Can Simulate ints? | yes | TODO | TODO
 Mouse Step Snap | 1, fixed | something; likely 0.1 but not sure | TODO
@@ -71,7 +71,7 @@ Preferred Size | given in UI guidelines | natural: 0x0; minimum: TODO | TODO
 # Spinner Capabilities
 
 Capability | Windows | GTK+ | Cocoa
--|-|-|-
+-----|-----|-----|-----
 Data Type | int | float | TODO
 Can Simulate ints? | yes | yes | TODO
 Mouse Step Snap | 1, fixed | configurable | TODO