diff --git a/coverage/carto_busstop.html b/coverage/carto_busstop.html
index 5a15e01..0c5ee8c 100644
--- a/coverage/carto_busstop.html
+++ b/coverage/carto_busstop.html
@@ -80,6 +80,7 @@
         <div id="sideWrap">
             <div id="timestamp"></div>
             <table>
+                <caption>マッピングカバー率 都道府県別</caption>
                 <thead>
                     <tr>
                         <th>code</th>
diff --git a/coverage/carto_fuel.html b/coverage/carto_fuel.html
index b78730b..4bc8373 100644
--- a/coverage/carto_fuel.html
+++ b/coverage/carto_fuel.html
@@ -73,6 +73,7 @@
         <div id="sideWrap">
             <div id="timestamp"></div>
             <table>
+                <caption>マッピングカバー率 都道府県別</caption>
                 <thead>
                     <tr>
                         <th>code</th>
diff --git a/osm/ol3ex10.js b/osm/ol3ex10.js
index fdfec5d..9359bc0 100644
--- a/osm/ol3ex10.js
+++ b/osm/ol3ex10.js
@@ -15,7 +15,7 @@
 var initOpacity = 1.0; // 不透明度の初期値
 var gMaxOpacity = 1.0; // 不透明度の最大値
 var gMinOpacity = 0.0; // 不透明度の最小値
-*******************************************************************
+//*******************************************************************
 
 function init_map() {
     // 以下の DOM の定義は，init_map() の中に入れないとだめだった。
diff --git a/surveyor.css b/surveyor.css
index 6c45ea8..1d826b8 100644
--- a/surveyor.css
+++ b/surveyor.css
@@ -42,6 +42,11 @@
     empty-cells: show;
 }
 
+table caption {
+    caption-side: top;
+    text-decoration: underline;
+}
+
 table tr th, table tr td {
     font-size: 12px;
     border-right: 1px solid #CCC;