diff --git a/src/js/src/tracker/app.html b/src/js/src/tracker/app.html
index 13bdcb9..9d9ba8f 100644
--- a/src/js/src/tracker/app.html
+++ b/src/js/src/tracker/app.html
@@ -26,6 +26,9 @@
                     <li class="pure-menu-item">
                         <a id="save-as-json" href="#" class="pure-menu-link">JSONダウンロード</a>
                     </li>
+                    <li class="pure-menu-item">
+                        <a id="license-purecss" href="#" class="pure-menu-link">PURE CSSライセンス</a>
+                    </li>
                 </ul>
             </div>
         </div>
@@ -39,7 +42,7 @@
                 <h2>参照</h2>
                 <div id="reference">
                     <ul>
-                        <li><a href="https://purecss.io/" target="_blank">PURE CSS </a> https://purecss.io/</li>
+                        <li><a href="https://purecss.io/" target="_blank">PURE CSS </a> <span>https://purecss.io/</span> <span>Copyright 2013 Yahoo! Inc.</span></li>
                     </ul>
                 </div>
             </div>
diff --git a/src/js/src/tracker/app.js b/src/js/src/tracker/app.js
index f77468e..5b184b5 100644
--- a/src/js/src/tracker/app.js
+++ b/src/js/src/tracker/app.js
@@ -199,8 +199,7 @@
         setupApp();
     
         // 初期行の変更
-        const start = domain.log.getLatest().start;
-        const time = start.toLocaleTimeString();
+        const time = domain.log.getLatest().start.toLocaleTimeString();
         q(tracker.ui.initRec, "td.col-position-start").textContent = time;
             
         // 現在時刻の初回呼び出し、後は自動で１秒ごとに更新。
@@ -220,13 +219,19 @@
         });
 
         q("#save-as-csv").addEventListener('click', (event) => {
-            const csvWindow = window.open("", "_blank");
+            const csvWindow = window.open("", "_blank", "popup,width=640,height=480");
+            
             csvWindow.document.open();
             csvWindow.document.write("<pre>" + domain.log.toCSV() + "</pre>");
             csvWindow.document.close();
-            console.log();
         })
 
+        q("#license-purecss").addEventListener('click', (event) => {
+            const csvWindow = window.open("license/PURE-CSS.txt", "_blank", "popup,width=640,height=480");            
+        })
+
+        tracker.ui.command.focus();
+
         function isDeleteButton(element) {
             return element.classList.contains("delete-event");
         }
diff --git a/src/js/src/tracker/license/PURE-CSS.txt b/src/js/src/tracker/license/PURE-CSS.txt
new file mode 100644
index 0000000..c32969a
--- /dev/null
+++ b/src/js/src/tracker/license/PURE-CSS.txt
@@ -0,0 +1,29 @@
+Software License Agreement (BSD License)
+========================================
+
+Copyright 2013 Yahoo! Inc.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+
+    * Redistributions in binary form must reproduce the above copyright
+      notice, this list of conditions and the following disclaimer in the
+      documentation and/or other materials provided with the distribution.
+
+    * Neither the name of the Yahoo! Inc. nor the
+      names of its contributors may be used to endorse or promote products
+      derived from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL YAHOO! INC. BE LIABLE FOR ANY
+DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
\ No newline at end of file