diff --git a/index.php b/index.php
index 9500e8a797a9879dce1942b95b8d4e09b0193975..3b481121e8dc7e5984e1b2857e87d5f9836cf8b3 100644
--- a/index.php
+++ b/index.php
@@ -171,15 +171,15 @@
               <option value="zenburn">Zenburn</option>
             </select>
           </label>
-          <label for="html-math-method">Math render HTML
+          <label for="html-math-method">Math render
             <select id="html-math-method" title="How math is rendered" onchange="pandoc()">
-            <option id="math-plain" value="plain">Plain</option>
-            <option id="math-gladtex" value="gladtex">GladTeX</option>
-            <option id="math-katex" value="katex">KaTeX</option>
-            <option id="math-mathjax" value="mathjax">MathJax</option>
-            <option id="math-mathml" value="mathml">MathML</option>
-            <option id="math-webtex" value="webtex">WebTeX</option>
-          </select>
+              <option id="math-plain" value="plain">Plain</option>
+              <option id="math-gladtex" value="gladtex">GladTeX</option>
+              <option id="math-katex" value="katex">KaTeX</option>
+              <option id="math-mathjax" value="mathjax">MathJax</option>
+              <option id="math-mathml" value="mathml">MathML</option>
+              <option id="math-webtex" value="webtex">WebTeX</option>
+            </select>
           </label>
         </div>
         <input type="button" id="example" name="example" value="Use markdown example" onclick="useExample()">
@@ -212,9 +212,7 @@ You can use this shortcut:
 OSX: [ Ctrl ] + [ Opt ] + [ p ]
 WIN: [ Alt ] + [ p ]" accesskey="p" onclick="pandoc(true)">Convert [p]</button>
           </div>
-          <div id="inputDub" class="grow-wrap">
-            <textarea id="input" name="input"></textarea>
-          </div>
+          <div id="input" role="textbox" aria-multiline="true" contenteditable="true"></div>
         </div>
         <div class="right">
           <div class="flex-space-between">
@@ -230,10 +228,6 @@ WIN: [ Alt ] + [ c ]" accesskey="c" onclick="copyOutput()">Copy output field [c]
     </div>
   </main>
   <script>
-    // enable auto height on input textarea
-    var inputField = document.getElementById("input");
-    inputField.addEventListener("input", adaptTextareaSize());
-    inputField.addEventListener("change", adaptTextareaSize());
     // Error messages dialog
     const dialog = document.getElementById("dialog");
     const closeButtonDialog = document.querySelector("dialog button");
diff --git a/script.js b/script.js
index 43cfeff445d8a087c657b36769c09c1941d07c45..82856befbebb13fb13b0685e7c2fce70860a0146 100644
--- a/script.js
+++ b/script.js
@@ -52,7 +52,7 @@ function pandoc(alert) {
     return;
   }
   var to  = document.getElementById('to').value;
-  var input  = document.getElementById('input').value;
+  var input  = document.getElementById('input').innerText;
   if (isEmpty(input) && !useInputFile) {
     if (alert === true) {
       pushDialog("Error: Nothing to convert.\n\nYou must either write something into the 'Input field' or select a file as input in the 'Options'.", "error");
@@ -153,7 +153,7 @@ function setMainButtonsAppearance() {
   if (useInputFile) {
     inputFile = document.getElementById('inputfile').files[0];
   }
-  var input  = document.getElementById('input').value;
+  var input  = document.getElementById('input').innerText;
   const output = document.getElementById('output');
 
   // convert button setting
@@ -183,12 +183,12 @@ function setMainButtonsAppearance() {
 function checkInputFile() {
   if (document.getElementById('cb-inputfile').checked === true) {
     document.getElementById('inputfile').removeAttribute("disabled");
-    document.getElementById('input').setAttribute("disabled", "disabled");
+    document.getElementById('input').classList.add("disabled");
     document.getElementById('label-inputfield').classList.add("disabled");
     document.getElementById('output').innerText = "";
   } else {
     document.getElementById('inputfile').setAttribute("disabled", "disabled");
-    document.getElementById('input').removeAttribute("disabled");
+    document.getElementById('input').classList.remove("disabled");
     document.getElementById('label-inputfield').classList.remove("disabled");
   }
 }
@@ -229,18 +229,6 @@ async function copyOutput() {
   return navigator.clipboard.write([clipboardItem]);
 }
 
-// adapt height of textarea responding to the contents
-// it's only working with the corresponding css
-function adaptTextareaSize() {
-  const growers = document.querySelectorAll(".grow-wrap");
-  growers.forEach((grower) => {
-    const textarea = grower.querySelector("textarea");
-    textarea.addEventListener("input", () => {
-      grower.dataset.replicatedValue = textarea.value;
-    });
-  });
-}
-
 function pushDialog(text, type, elementById) {
   var dialogText = document.getElementById('dialogText');
   dialogText.innerText = text;
@@ -265,13 +253,10 @@ function isEmpty(string) {
 
 function useExample() {
   var inputField = document.getElementById("input");
-  inputField.value = example;
+  inputField.innerText = example;
   document.getElementById('from').value = 'markdown';
   document.getElementById('cb-inputfile').checked = false;
   checkInputFile();
-  // fire onInput event to adapt height of textarea
-  var eventInput = new Event('input', { bubbles: true });
-  inputField.dispatchEvent(eventInput);
   // execute pandoc to show example on preview
   pandoc();
 }
diff --git a/style.css b/style.css
index 0d77360515fc6fdef407450d899630239217935b..fc6c2d3aaf6304b7c8099da7927073ca1588fc4e 100644
--- a/style.css
+++ b/style.css
@@ -220,45 +220,7 @@ p.label {
   flex-grow: 1;
 }
 
-.grow-wrap {
-  /* easy way to plop the elements on top of each other and have them both sized based on the tallest one's height */
-  display: grid;
-  flex-grow: 1;
-  /* ersetzt den margin-bottom vom body
-  da dieses Element bis zum Ende gehen soll */
-  margin-bottom: var(--default-body-bottom-margin);
-}
-.grow-wrap::after {
-  /* Note the weird space! Needed to preventy jumpy behavior */
-  content: attr(data-replicated-value) " ";
-  /* This is how textarea text behaves */
-  white-space: pre-wrap;
-  /* Hidden from view, clicks, and screen readers */
-  visibility: hidden;
-}
-.grow-wrap > textarea {
-  /* You could leave this, but after a user resizes, then it ruins the auto sizing */
-  resize: none;
-  /* Firefox shows scrollbar on growth, you can hide like this. */
-  overflow: hidden;
-}
-.grow-wrap > textarea,
-.grow-wrap::after {
-  /* Identical styling required!! */
-  color: white;
-  background-color: #555;
-  font: inherit;
-  font-size: inherit;
-  padding: 0.5rem;
-  margin-top: var(--default-top-padding);
-  border: 1px solid white;
-  outline: 1px solid white;
-  /* min-height: 44vh; */
-  /* Place on top of each other */
-  grid-area: 1 / 1 / 2 / 2;
-}
-
-textarea#input:focus {
+#input:focus {
   outline: 2px solid white;
 }
 
@@ -289,7 +251,7 @@ button:disabled, input:disabled, textarea:disabled {
   pointer-events: none;
 }
 
-div.disabled, p.disabled, label.disabled, #output.disabled {
+div.disabled, p.disabled, label.disabled, #input.disabled, #output.disabled {
   background-color: inherit;
   color: #AAAAAA;
   border-color: #AAAAAA;
@@ -330,7 +292,7 @@ div.download {
   align-items: baseline;
 }
 
-#output {
+#input, #output {
   margin-top: var(--default-top-padding);
   /* ersetzt den margin-bottom vom body
   da dieses Element bis zum Ende gehen soll */
@@ -381,9 +343,6 @@ th {
   .label-w-select {
     flex-direction: column;
   }
-  .grow-wrap {
-    /* grid-template-columns: 92vmin; */
-  }
 }
 
 /* iPhone portait only */
@@ -391,5 +350,4 @@ th {
   body {
     /* font-size: 4vmin; */
   }
-
 }