diff --git a/css/swad18.122.4.css b/css/swad18.122.5.css
similarity index 98%
rename from css/swad18.122.4.css
rename to css/swad18.122.5.css
index 85244ed40..762e0741b 100644
--- a/css/swad18.122.4.css
+++ b/css/swad18.122.5.css
@@ -1459,6 +1459,38 @@ a:hover						/* Default ==> underlined */
 	background-image:linear-gradient(rgba(0,0,0,0),rgba(0,0,0,0.2));
 	}
 
+.BT_A	{background-color:#e21c3d; border-color:#a9152d;} /* red */
+.BT_B	{background-color:#1369ce; border-color:#0e519c;} /* blue */
+.BT_C	{background-color:#d89e00; border-color:#a27600;} /* yellow */
+.BT_D	{background-color:#2b9010; border-color:#206c0c;} /* green */
+.BT_E	{background-color:#e30087; border-color:#aa0064;} /* pink */
+.BT_F	{background-color:#00b5e9; border-color:#0089b0;} /* light blue */
+.BT_G	{background-color:#f58700; border-color:#b86400;} /* orange */
+.BT_H	{background-color:#b3d00a; border-color:#869d07;} /* light green */
+.BT_I	{background-color:#642075; border-color:#4b1858;} /* purple */
+.BT_J	{background-color:#f5e800; border-color:#b8ad00;} /* light yellow */
+.BT_GAME
+	{
+	box-sizing:border-box;
+	width:64px;
+	margin:8px;
+	padding:8px;
+	border-radius:4px;
+	border-width:1px;
+	border-style:solid;
+	box-shadow:0 1px 0 rgba(255,255,255,0.15) inset;
+	color:white;
+	font-size:36px;
+	font-weight:bold;
+	line-height:normal;
+	white-space:nowrap;
+	}
+.BT_GAME:hover
+	{
+	background-image:-webkit-linear-gradient(rgba(0,0,0,0),rgba(0,0,0,0.2));	/* Safari */
+	background-image:linear-gradient(rgba(0,0,0,0),rgba(0,0,0,0.2));
+	}
+
 /********************************** Notice ***********************************/
 .NOTICE_HIGHLIGHT
 	{
diff --git a/swad_changelog.h b/swad_changelog.h
index d8756261a..5515810e5 100644
--- a/swad_changelog.h
+++ b/swad_changelog.h
@@ -448,10 +448,11 @@ En OpenSWAD:
 ps2pdf source.ps destination.pdf
 */
 
-#define Log_PLATFORM_VERSION	"SWAD 18.122.4 (2019-05-20)"
-#define CSS_FILE		"swad18.122.4.css"
+#define Log_PLATFORM_VERSION	"SWAD 18.122.5 (2019-05-20)"
+#define CSS_FILE		"swad18.122.5.css"
 #define JS_FILE			"swad18.116.5.js"
 /*
+	Version 18.122.5: May 20, 2019	Buttons for options in games. (242596 lines)
 	Version 18.122.4: May 20, 2019	Changes in buttons. (242563 lines)
 	Version 18.122.3: May 20, 2019	Changes in games. (242558 lines)
 					Copy the following icon to icon public directory:
diff --git a/swad_test.c b/swad_test.c
index c1022fdc9..33f9021d3 100644
--- a/swad_test.c
+++ b/swad_test.c
@@ -4100,20 +4100,21 @@ static void Tst_WriteChoiceAnsViewGame (struct Game *Game,
 
       /***** Write letter of this option *****/
       fprintf (Gbl.F.Out,"<tr>"
-	                 "<td class=\"LEFT_TOP\">"
-                         "<label for=\"Ans%06u_%u\" class=\"%s\">"
-	                 "%c)&nbsp;"
-	                 "</label>"
+	                 "<td class=\"CENTER_MIDDLE\">"
+                         "<button class=\"BT_GAME BT_%c\">"
+	                 "%c"
+	                 "</button>"
 	                 "</td>",
-	       NumQst,NumOpt,Class,
+	       'A' + (char) NumOpt,
 	       'a' + (char) NumOpt);
 
       /***** Write the option text *****/
-      fprintf (Gbl.F.Out,"<td class=\"LEFT_TOP\">"
+      fprintf (Gbl.F.Out,"<td class=\"LEFT_MIDDLE\">"
                          "<label for=\"Ans%06u_%u\" class=\"%s\">"
 	                 "%s"
 	                 "</label>",
-               NumQst,NumOpt,Class,
+               NumQst,NumOpt,
+	       Class,
                Gbl.Test.Answer.Options[NumOpt].Text);
       Med_ShowMedia (&Gbl.Test.Answer.Options[NumOpt].Media,
                      "TEST_MED_SHOW_CONTAINER",