added default style sheet and some browser dependent changes

stylesheets/default_style.css

+body {
+	font-family: "Helvetica", "Times", serif;
+	color: black;
+	margin: 0 auto;
+	padding: 0;
+}
\ No newline at end of file

stylesheets/style.css

@@ -12,6 +12,7 @@ body {
 	background-color: #cccccc;
 	overflow:hidden;
 	font-family: "Helvetica", "Times", serif;
+	font-size: 14px;
 }
 
 .foot h5 {
@@ -242,6 +243,7 @@ h1 {
 	   	width: 100%;
 	  	background-size: cover;
 	  	color: white;
+	  	overflow: hidden;
 
 	}
 

templates/base.html

@@ -15,6 +15,7 @@
 	<!-- Latest compiled and minified JavaScript -->
 	<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/js/bootstrap.min.js" integrity="sha384-0mSbJDEHialfmuBBQP6A4Qrprq5OVfW37PRR3j5ELqxss1yVqOtnepnHVP9aJ7xS" crossorigin="anonymous"></script>
 
+	<link rel="stylesheet" type="text/css" href="stylesheets/default_style.css">
 	<link rel="stylesheet" type="text/css" href="stylesheets/style.css">