Updates

shower/themes/material/README.md

@@ -15,11 +15,11 @@ Wait for the installation and choose the **material** option in the wizard and y
 
 ## Features
 
-All theme’s features are demonstrated in the [index.html](index.html) file, [see it live](https://shwr.me/shower/themes/material/). Use it as a reference while building your presentation. See more detailed [features overview](https://github.com/shower/shower/blob/master/docs/features.md).
+All theme’s features are demonstrated in the [index.html](index.html) file, [see it live](https://shwr.me/shower/themes/material/). Use it as a reference while building your presentation. See more detailed [features overview](https://github.com/shower/shower/blob/main/docs/features.md).
 
 ## Ratios
 
-Material theme supports any slide ratio you want. But it’s optimized for the most common ones: 16×9 and 4×3. It’s 16×9 by default, but you can change it by adjusting `--slide-ratio` property for `.shower`, [see example](https://github.com/shower/ribbon/blob/master/index.html#L10) in `index.html`.
+Material theme supports any slide ratio you want. But it’s optimized for the most common ones: 16×9 and 4×3. It’s 16×9 by default, but you can change it by adjusting `--slide-ratio` property for `.shower`, [see example](https://github.com/shower/ribbon/blob/main/index.html#L10) in `index.html`.
 
 ## Key color
 
@@ -27,7 +27,7 @@ By default Material theme is green, but you can easily change the key color by a
 
 ## PDF
 
-You can export slides to PDF by printing it via built-in dialog in Chromium-based browsers or via CLI tool. See [printing documentation](https://github.com/shower/shower/blob/master/docs/pdf.md) for more options.
+You can export slides to PDF by printing it via built-in dialog in Chromium-based browsers or via CLI tool. See [printing documentation](https://github.com/shower/shower/blob/main/docs/pdf.md) for more options.
 
 ## Development
 

shower/themes/material/styles/shower/shower-list.css

@@ -15,6 +15,7 @@
         var(--shower-list-block)
         var(--shower-list-inline);
 
+    overflow-x: hidden;
     box-sizing: border-box;
     width: 100%;
     display: grid;