修正

third/building_etc/Library.html

                             詳細地図(別ウィンドウ表示)</a><br />
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                         <span style="font-size: x-large;color: red;"><a
-                                href="../../fourth/library/Library_temporarily_closed_200410.pdf" target="_blank" style="color:
+                                href="../../fourth/library/Library_temporarily_closed_200518.pdf" target="_blank" style="color:
                                 red;">５月２０日（水）図書館再開</a></span>
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                         <br />