diff --git a/changelog.md b/changelog.md
index 0dfb80d..123c0f0 100644
--- a/changelog.md
+++ b/changelog.md
@@ -1,5 +1,13 @@
 # Changelog
 
+## 2025-12-21 - 3.1.1 - fix(wcc-properties)
+Improve wcc-properties CSS to prevent grid overflow, properly size and center icon glyphs, and adjust right-side offset
+
+- Use minmax(0, 1fr) for grid-template-columns (selectorButtons1/2/4/5) to avoid flexbox overflow and ensure consistent column sizing
+- Add min-width/min-height and inline-flex centering to .material-symbols-outlined to stabilize icon sizing and vertical/horizontal alignment
+- Increase right calc offset from 520px to 600px to accommodate wider content/controls
+- Changes applied in ts_web/elements/wcc-properties.ts
+
 ## 2025-12-19 - 3.1.0 - feat(wcc-properties)
 add Share selector with inline Record button and adjust properties panel grid layout
 
diff --git a/ts_web/00_commitinfo_data.ts b/ts_web/00_commitinfo_data.ts
index d79322f..f86a2a2 100644
--- a/ts_web/00_commitinfo_data.ts
+++ b/ts_web/00_commitinfo_data.ts
@@ -3,6 +3,6 @@
  */
 export const commitinfo = {
   name: '@design.estate/dees-wcctools',
-  version: '3.1.0',
+  version: '3.1.1',
   description: 'A set of web component tools for creating element catalogues, enabling the structured development and documentation of custom elements and pages.'
 }
diff --git a/ts_web/elements/wcc-properties.ts b/ts_web/elements/wcc-properties.ts
index 15d3210..8d45c70 100644
--- a/ts_web/elements/wcc-properties.ts
+++ b/ts_web/elements/wcc-properties.ts
@@ -207,22 +207,22 @@ export class WccProperties extends DeesElement {
         }
         .selectorButtons2 {
           display: grid;
-          grid-template-columns: 1fr 1fr;
+          grid-template-columns: repeat(2, minmax(0, 1fr));
           flex: 1;
         }
         .selectorButtons4 {
           display: grid;
-          grid-template-columns: repeat(4, 1fr);
+          grid-template-columns: repeat(4, minmax(0, 1fr));
           flex: 1;
         }
         .selectorButtons5 {
           display: grid;
-          grid-template-columns: repeat(5, 1fr);
+          grid-template-columns: repeat(5, minmax(0, 1fr));
           flex: 1;
         }
         .selectorButtons1 {
           display: grid;
-          grid-template-columns: 1fr;
+          grid-template-columns: minmax(0, 1fr);
           flex: 1;
         }
         .button {
@@ -259,6 +259,11 @@ export class WccProperties extends DeesElement {
         .button .material-symbols-outlined {
           font-size: 18px;
           font-variation-settings: 'FILL' 0, 'wght' 300;
+          min-width: 18px;
+          min-height: 18px;
+          display: inline-flex;
+          align-items: center;
+          justify-content: center;
         }
         
         .button.selected .material-symbols-outlined {
@@ -301,7 +306,7 @@ export class WccProperties extends DeesElement {
           top: 0.5rem;
           bottom: 0.5rem;
           left: 0.5rem;
-          right: calc(520px + 0.5rem);
+          right: calc(600px + 0.5rem);
           display: flex;
           align-items: center;
           justify-content: center;