relative

css/layout.css

@@ -45,25 +45,26 @@ body{
 }
 #rechnung1, #rechnung2 {
     width: 20%;
-    margin: 0 100px;
     padding: 20px;
     text-align: center;
-    font-size: 1.5em;
     z-index: 10;
-    position: fixed;
+    position: relative;
     display: inline-block;
 }
 #rechnung1{
     background-color: rgb(0, 225, 255);
     border-radius: 15px;
     outline: 8px solid black;
-    left: 15%;
+    margin-left: auto;
+    margin-right: 100px;
 }
+
 #rechnung2{
     background-color: red;
     border-radius: 15px;
     outline: 8px solid black;
-    right: 15%;
+    margin-left: 100px;
+    margin-right: auto;
 }
 #rechnung1 img, #rechnung2 img {
     position: absolute;