[fail.go] Error page refactoring

Closes #91

Error page content centered

Author: pavelsne

internal/resources/templates/fail.go

@@ -4,10 +4,13 @@ var Fail = `
 {{ define "content" }}
 
 <br><br>
-<h1>{{ .StatusCode }}: {{ .StatusText }}</h1>
-<div style="color: red; font-weight: bold">
-{{ .Message }}
+<div class="center">
+	<h1>{{ .StatusCode }}: {{ .StatusText }}</h1>
+	<div style="color: red; font-weight: bold">
+		{{ .Message }}
+	</div>
 </div>
 
+
 {{ end }}
 `