diff --git a/src/assets/css/style.css b/src/assets/css/style.css
index a5c5970..46c351b 100644
--- a/src/assets/css/style.css
+++ b/src/assets/css/style.css
@@ -56,7 +56,7 @@ a {
 
 label {
     font-weight: bold;
-    word-break: break-word;;
+    word-break: break-word;
 }
 
 .slidecontainer {
@@ -204,3 +204,26 @@ input.measurement {
     font-weight: bold;
     width: 20%;
 }
+
+
+.tooltip {
+    position: relative;
+    display: inline-block;
+}
+
+.tooltip .tooltiptext {
+    visibility: hidden;
+    width: 200px;
+    background-color: var(--primary-dark-one);
+    color: #ffffff;
+    text-align: center;
+    padding: 10px;
+    border-radius: 5px;
+
+    position: absolute;
+    z-index: 1;
+}
+
+.tooltip:hover .tooltiptext {
+    visibility: visible;
+}
\ No newline at end of file
diff --git a/src/index.html b/src/index.html
index e87a6b1..6818a9f 100644
--- a/src/index.html
+++ b/src/index.html
@@ -83,6 +83,10 @@
     <div class="container-inputs">
         <div class="input-element">
             <label for="numFullFloors">Vollebenen</label>
+            <div class="tooltip">
+                <svg class="text-grey-dark" width="18" height="18" viewBox="0 0 18 18" fill="none" stroke="currentColor"><path d="M9.00026 12.6C9.00026 12.6 9.00026 12.1224 9.00026 11.5333V8.86666C9.00026 8.57211 8.76148 8.33333 8.46693 8.33333H7.93359" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round"></path><path d="M8.73346 5.26666C8.58619 5.26666 8.4668 5.38605 8.4668 5.53333C8.4668 5.68061 8.58619 5.8 8.73346 5.8C8.88074 5.8 9.00013 5.68061 9.00013 5.53333C9.00013 5.38605 8.88074 5.26666 8.73346 5.26666V5.26666" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round"></path><path fill-rule="evenodd" clip-rule="evenodd" d="M9 17C13.4183 17 17 13.4183 17 9C17 4.58172 13.4183 1 9 1C4.58172 1 1 4.58172 1 9C1 13.4183 4.58172 17 9 17Z" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round"></path></svg>
+                <span class="tooltiptext">Als Vollebenen zählen alle Ebenen die größer als 0.5m² sind, inklusive des Käfigbodens.</span>
+            </div>
             <div class="ncontainer">
                 <div class="input-group">
                     <button onclick="decreaseFloorNum()">-</button>