diff --git a/src/scss/tab/tab.scss b/src/scss/tab/tab.scss
index 161659af..f3a6232c 100644
--- a/src/scss/tab/tab.scss
+++ b/src/scss/tab/tab.scss
@@ -74,6 +74,7 @@ joomla-tab > section {
 }
 
 joomla-tab > section[active] {
+  width: 100%;
   display: block;
 }
 
@@ -84,7 +85,7 @@ joomla-tab[orientation=vertical] {
 
 joomla-tab[orientation=vertical] > ul {
   flex-direction: column;
-  min-width: 30%;
+  flex: 1 0 auto;
   height: auto;
   overflow: hidden;
   border: 1px solid #ccc;