diff --git a/src/components/sites/doExerciseSite/customTestsPanel/customTestsPanelView.tsx b/src/components/sites/doExerciseSite/customTestsPanel/customTestsPanelView.tsx
index a478fd142cc38f510062718305fcfa1d90e9b76c..39e9d49dd29a5e9eb12e7bcbb21ee78bf621b080 100644
--- a/src/components/sites/doExerciseSite/customTestsPanel/customTestsPanelView.tsx
+++ b/src/components/sites/doExerciseSite/customTestsPanel/customTestsPanelView.tsx
@@ -84,7 +84,8 @@ class TestsPanel extends React.Component<Props, any> {
             )
               .map((customTest, index) => {
                 return (
-                  <List.Item key={customTest.id}
+                  //style hidden is needed because the test running animation (.test-running) rotates and box heights gets bigger... after 45 deg
+                  <List.Item key={customTest.id} style={{overflow: 'hidden'}}
                              className={`test-line pad-left-right default-cursor fg-colored ` +
                              (this.props.selectedConsoleViewTest
                               && this.props.selectedConsoleViewTest.id === customTest.id
diff --git a/src/components/sites/doExerciseSite/testsPanel/styles.styl b/src/components/sites/doExerciseSite/testsPanel/styles.styl
index 1909c7e184965b5c4cd7514478e830ada8c69fc2..96d98d2e58812ec016699ac5c75aeddbfc1d03d5 100644
--- a/src/components/sites/doExerciseSite/testsPanel/styles.styl
+++ b/src/components/sites/doExerciseSite/testsPanel/styles.styl
@@ -80,7 +80,7 @@ $testNumberSize = 32px
   /*  display: inline-block;*/
   min-width $testNumberSize
   min-height $testNumberSize
-  padding 0.1em
+  padding 1px
   border-radius 50%
   border-top-color transparent
   border-bottom-color transparent
@@ -96,4 +96,4 @@ $testNumberSize = 32px
   to {
     transform rotate(360deg)
   }
-}
\ No newline at end of file
+}
diff --git a/src/components/sites/doExerciseSite/testsPanel/testNumber.tsx b/src/components/sites/doExerciseSite/testsPanel/testNumber.tsx
index e53dbdb460878368ef318f3c405a08818b61f1a0..25cf3d5f972c33ebbe11a41c856acccf00a15f17 100644
--- a/src/components/sites/doExerciseSite/testsPanel/testNumber.tsx
+++ b/src/components/sites/doExerciseSite/testsPanel/testNumber.tsx
@@ -76,4 +76,4 @@ class testNumber extends React.Component<Props, any> {
   }
 }
 
-export default connect(mapStateToProps, mapDispatchToProps)(testNumber)
\ No newline at end of file
+export default connect(mapStateToProps, mapDispatchToProps)(testNumber)
diff --git a/src/components/sites/doExerciseSite/testsPanel/testsPanelView.tsx b/src/components/sites/doExerciseSite/testsPanel/testsPanelView.tsx
index 35274a2342e2976fc5005c59d311278a3a38c1dd..5f978b9586fe326664544b245ec6834c90e32f7e 100644
--- a/src/components/sites/doExerciseSite/testsPanel/testsPanelView.tsx
+++ b/src/components/sites/doExerciseSite/testsPanel/testsPanelView.tsx
@@ -139,7 +139,8 @@ class TestsPanel extends React.Component<Props, any> {
               (test) => test.displayIndex)
               .map((test, index) => {
                 return (
-                  <List.Item key={test.id}
+                  //style hidden is needed because the test running animation (.test-running) rotates and box heights gets bigger... after 45 deg
+                  <List.Item key={test.id} style={{overflow: 'hidden'}}
                              className={`test-line pad-left-right default-cursor fg-colored indicator-parent ` +
                              (this.props.selectedConsoleViewTest
                                && this.props.selectedConsoleViewTest.id === test.id
diff --git a/src/constants.ts b/src/constants.ts
index d12b4604042c016c62a9c561d71cdc87011c1d2d..ff3d5ef9e9e43b73d1978a606cd6c5c984a54366 100644
--- a/src/constants.ts
+++ b/src/constants.ts
@@ -13,7 +13,7 @@ import Logger from './helpers/logger'
  * y - breaking changes / new features
  * z - fixes, small changes
  */
-export const versionString = '2.5.12'
+export const versionString = '2.5.13'
 
 
 export const supportMail = 'yapex@informatik.uni-halle.de'