diff --git a/book/usecases/uvvis_metadata.ipynb b/book/usecases/uvvis_metadata.ipynb
index 1d7210fa..167c3a1a 100644
--- a/book/usecases/uvvis_metadata.ipynb
+++ b/book/usecases/uvvis_metadata.ipynb
@@ -83,10 +83,10 @@
     "    <td><b>Format</b></td>\n",
     "  </tr>\n",
     "  <tr>\n",
-    "    <td style=\"word-wrap: break-word; max-width: 400px;valign: top;\">Data matrix (with or without column headings)</td>\n",
-    "    <td style=\"word-wrap: break-word; max-width: 400px;valign: top;\">Spectrophotometer output as tabular data (absorbance and wavelength)</td>\n",
-    "    <td style=\"word-wrap: break-word; max-width: 400px;\"valign: top;>Essential</td>\n",
-    "    <td style=\"word-wrap: break-word; max-width: 400px;\"valign: top;>CSV (.csv)<br/>JCAMP–DX (.jdx)</td>\n",
+    "    <td style=\"word-wrap: break-word; max-width: 400px;vertical-align: top;\">Data matrix (with or without column headings)</td>\n",
+    "    <td style=\"word-wrap: break-word; max-width: 400px;vertical-align: top;\">Spectrophotometer output as tabular data (absorbance and wavelength)</td>\n",
+    "    <td style=\"word-wrap: break-word; max-width: 400px;vertical-align: top;\">Essential</td>\n",
+    "    <td style=\"word-wrap: break-word; max-width: 400px;vertical-align: top;\">CSV (.csv)<br/>JCAMP–DX (.jdx)</td>\n",
     "  </tr>\n",
     "  <tr style=\"background-color:gray;\">\n",
     "    <td colspan='4'><strong> Sample level metadata </strong></td>\n",