some styling

web/label.js

@@ -79,6 +79,7 @@ const addTextElement = () => {
 
     let textCol = document.createElement('td');
     textCol.classList.add('text');
+    textCol.colSpan = 2;
     let textInput = document.createElement('input');
     textInput.type = "text";
     textInput.addEventListener('input', render);
@@ -114,11 +115,20 @@ const addImageElement = () => {
     imageCol.classList.add('image');
     let imageInput = document.createElement('input');
     imageInput.type = 'file';
+    let imageId = `image-input-${id}`;
+    imageInput.id = imageId;
     imageInput.addEventListener('change', loadImage);
+    let imageLabel = document.createElement('label');
+    imageLabel.appendChild(document.createTextNode("Browse..."));
+    imageLabel.setAttribute('for', imageId);
+    let thumbCol = document.createElement('td');
+    thumbCol.classList.add('preview');
     let imageThumb = document.createElement('img');
+    imageCol.appendChild(imageLabel);
     imageCol.appendChild(imageInput);
-    imageCol.appendChild(imageThumb);
+    thumbCol.appendChild(imageThumb);
     row.appendChild(imageCol);
+    row.appendChild(thumbCol);
 
     addElementControls(row);
     elementsTableBody.appendChild(row);

web/style.css

@@ -1,5 +1,5 @@
 :root {
-    --background-color: #959595;
+    --background-color: #ffffff;
     --font-color: #000000;
 }
 
@@ -11,18 +11,53 @@
     }
 }
 
+body {
+    margin: 1em auto;
+    max-width: 800px;
+}
+
 body, input {
     background: var(--background-color);
     color: var(--font-color);
 }
 
+input {
+    line-height: 24px;
+}
+
 #elements {
+    tr {
+        line-height: 42px;
+    }
+
+
+    td {
+        padding: 0 5px;
+    }
+
     .pos input {
         width: 60px;
     }
 
-    .image img {
-        height: 32px;
-        width: auto;
+    .image {
+        input[type="file"] {
+            opacity: 0;
+            width: 0;
+        }
+        label {
+            line-height: 32px;
+            padding: 0 12px;
+            margin: 5px 0;
+            border: 1px solid var(--font-color);
+            border-radius: 7px;
+            display: inline-block;
+            cursor: pointer;
+        }
+    }
+    .preview {
+        img {
+            height: 42px;
+            width: auto;
+        }
     }
 }