Small changes, starting css

Call_of_Cthulhu_Spanish/Call_of_Cthulhu.css

@@ -0,0 +1,17 @@
+.charsheet img.logo {
+	display: block;
+	width: 70%;
+	margin:auto;
+}
+
+.charsheet img.logo:lang-es {
+	display: block;
+	width: 70%;
+	margin:auto;
+	-moz-box-sizing: border-box;
+	box-sizing: border-box;
+	background: url(http://www.edgeent.com/sisimg/catalog/main/call_cthulhu_rpg.jpg) no-repeat;
+	width: 176px; /* Width of new image */
+	height: 79px; /* Height of new image */
+	padding-left: 176px; /* Equal to width of new image */
+}

Call_of_Cthulhu_Spanish/Call_of_Cthulhu.html

@@ -1,7 +1,7 @@
 <p>
     <div class='sheet-2colrow'>
         <div class='sheet-col'>
-            <img src="http://www.edgeent.com/sisimg/catalog/main/call_cthulhu_rpg.jpg" style="width: 70%;" />
+            <img class="logo" src="https://github.com/Roll20/roll20-character-sheets/blob/master/Call_of_Cthulhu/Call_of_Cthulhu_Logo.png" />
             <table style"width: 100%;">
                 <tr>
                     <td data-i18n="investigator-name-u">Nombre del Investigador</td>