diff --git a/on-fail-handler.ts b/on-fail-handler.ts
index 521d37c..44436df 100644
--- a/on-fail-handler.ts
+++ b/on-fail-handler.ts
@@ -1,71 +1,125 @@
-import * as diff from 'diff';
+import * as diff from 'diff'
 
-type CypressError = Cypress.CypressError & { actual: string; expected: string };
-type Runner = Mocha.Runnable & { commands: { message: string }[] };
+type CypressError = Cypress.CypressError & { actual: string; expected: string }
+type Runner = Mocha.Runnable & { commands: { message: string }[] }
 
 const color = {
   actual: '#cc3333',
   expected: '#008000',
-};
+}
 
-const formatValue = (value: unknown) => (typeof value === 'object' ? JSON.stringify(value, null, 2) : value);
+const formatValue = (value: unknown) =>
+  typeof value === 'object' ? JSON.stringify(value, null, 2) : value
 
 const insertCodeBlock = (value: string) =>
-  `<pre style="max-height: 500px; overflow-y: auto; white-space: pre-wrap;">${value}</pre>`;
+  `<pre style="max-height: 100px; overflow-y: auto; white-space: pre-wrap;">${value}</pre>`
 
 const formatDiff = (part: Diff.Change) =>
-  `<span style="background-color:${
-    part.added ? `${color.expected}; font-weight: bold;` : part.removed ? `${color.actual}; font-weight: bold;` : 'none'
-  };">${part.value}</span>`;
+  `<span ${
+    part.added || part.removed ? 'class="haschanges"' : ''
+  } style="background-color:${
+    part.added
+      ? `${color.expected}; font-weight: bold;`
+      : part.removed
+      ? `${color.actual}; font-weight: bold;`
+      : 'none'
+  };">${part.value}</span>`
 
 export function onFailHandler(error: CypressError, runnable: Runner) {
-  if (!error.actual) throw error;
-  if (!error.expected) throw error;
-  if (typeof error.actual === 'number') throw error;
+  if (!error.actual) throw error
+  if (!error.expected) throw error
+  if (typeof error.actual === 'number') throw error
   // @ts-expect-error - TODO: improve types
-  if (typeof error.actual === 'object' && error.actual.constructor.name === 'jQuery') throw error;
-  if (error.message.includes(' to contain text ')) throw error;
+  if (typeof error.actual === 'object' && error.actual.constructor.name === 'jQuery')
+    throw error
+  if (error.message.includes(' to contain text ')) throw error
 
   if (error.name === 'AssertionError') {
-    window.top!.document.querySelectorAll('.command-info').forEach((element) => {
-      const methodSpan = element.querySelector('.command-method > span');
-      const messageElement = element.querySelector('.command-message-text');
-      const errorMessage = runnable.commands[runnable.commands.length - 1]!.message;
-      const unboldedErrorMessage = errorMessage.replaceAll('**', '');
-      const unboldedExpectedValueErrorMessage = errorMessage.replace(/\*\*([^*]+)\*\*/, '$1');
-      const includesErrorMessage = (message: string) => messageElement?.textContent?.includes(message);
+    window
+      .top!.document.querySelectorAll('.command-info')
+      .forEach((element) => {
+        const methodSpan = element.querySelector('.command-method > span')
+        const messageElement = element.querySelector('.command-message-text')
+        if (messageElement) (messageElement as any).style.display = 'flex'
+        if (messageElement) (messageElement as any).style.flexWrap = 'wrap'
+        const errorMessage =
+          runnable.commands[runnable.commands.length - 1]!.message
+        const unboldedErrorMessage = errorMessage.replaceAll('**', '')
+        const unboldedExpectedValueErrorMessage = errorMessage.replace(
+          /\*\*([^*]+)\*\*/,
+          '$1'
+        )
+        const includesErrorMessage = (message: string) =>
+          messageElement?.textContent?.includes(message)
+
+        if (methodSpan && methodSpan.textContent === 'assert') {
+          if (
+            includesErrorMessage(errorMessage) ||
+            includesErrorMessage(unboldedErrorMessage) ||
+            includesErrorMessage(unboldedExpectedValueErrorMessage)
+          ) {
+            if (messageElement) {
+              methodSpan?.parentElement?.remove()
 
-      if (methodSpan && methodSpan.textContent === 'assert') {
-        if (
-          includesErrorMessage(errorMessage) ||
-          includesErrorMessage(unboldedErrorMessage) ||
-          includesErrorMessage(unboldedExpectedValueErrorMessage)
-        ) {
-          if (messageElement) {
-            methodSpan?.parentElement?.remove();
+              const actual = formatValue(error.actual) as string
+              const expected = formatValue(error.expected) as string
 
-            const actual = formatValue(error.actual) as string;
-            const expected = formatValue(error.expected) as string;
+              const diffResult = diff.diffChars(actual, expected)
 
-            const diffResult = diff.diffChars(actual, expected);
+              let actualFormatted = ''
+              let expectedFormatted = ''
 
-            let actualFormatted = '';
-            let expectedFormatted = '';
+              diffResult.forEach((part: Diff.Change) => {
+                const span = formatDiff(part)
+                actualFormatted += part.removed || !part.added ? span : ''
+                expectedFormatted += part.added || !part.removed ? span : ''
+              })
 
-            diffResult.forEach((part: Diff.Change) => {
-              const span = formatDiff(part);
-              actualFormatted += part.removed || !part.added ? span : '';
-              expectedFormatted += part.added || !part.removed ? span : '';
-            });
+              messageElement.innerHTML = `
+            <div id="controls" style="flex-basis: 100%; justify-content: flex-end; background: transparent;display:flex;">
+              <svg id="toggleView" width="30px" height="30px" style="transform: rotate(90deg);" class="MuiSvgIcon-root MuiSvgIcon-fontSizeLarge  css-c1sh5i" focusable="false" aria-hidden="true" viewBox="0 0 24 24" data-testid="ViewStreamIcon" aria-label="fontSize large"><path fill="#9095ad" d="M3 17v-2c0-1.1.9-2 2-2h14c1.1 0 2 .9 2 2v2c0 1.1-.9 2-2 2H5c-1.1 0-2-.9-2-2M3 7v2c0 1.1.9 2 2 2h14c1.1 0 2-.9 2-2V7c0-1.1-.9-2-2-2H5c-1.1 0-2 .9-2 2"></path></svg>
+            </div>
+            <div id="expected" style="flex-basis: 50%;"><span style="color: ${
+              color.expected
+            };">Expected:</span>${insertCodeBlock(expectedFormatted)}</div>
+            <div id="actual" style="flex-basis: 50%;"><span style="color: ${
+              color.actual
+            };">Actual:</span>${insertCodeBlock(actualFormatted)}</div>`
+              const block1 = window.top!.document.querySelector('#expected pre')
+              const block2 = window.top!.document.querySelector('#actual pre')
+              const toggleView = window.top!.document.querySelector(
+                '#controls #toggleView'
+              )
+              const hasChanges =
+                window.top!.document.querySelectorAll('.haschanges')
 
-            messageElement.innerHTML = `
-            <div><span style="color: ${color.expected};">Expected:</span>${insertCodeBlock(expectedFormatted)}</div>
-            <div><span style="color: ${color.actual};">Actual:</span>${insertCodeBlock(actualFormatted)}</div>`;
+              if (block1 && block2) {
+                block1.addEventListener('scroll', function () {
+                  block2.scrollTop = block1.scrollTop
+                })
+                block2.addEventListener('scroll', function () {
+                  block1.scrollTop = block2.scrollTop
+                })
+              }
+              toggleView?.addEventListener('click', function (e) {
+                e.preventDefault()
+                e.stopImmediatePropagation()
+                if ((messageElement as any).style.flexDirection === 'column') {
+                  ;(messageElement as any).style.flexDirection = 'row'
+                  toggleView?.setAttribute('style', 'transform: rotate(90deg);')
+                } else {
+                  ;(messageElement as any).style.flexDirection = 'column'
+                  toggleView?.setAttribute('style', 'transform: rotate(0deg);')
+                }
+              })
+              if (hasChanges && hasChanges.length > 0) {
+                hasChanges?.[0]?.scrollIntoView({ block: 'center' })
+              }
+            }
           }
         }
-      }
-    });
+      })
   }
 
-  throw error;
+  throw error
 }