body 
     {font-family:sans-serif; 
}
 
h1 {
	color: black;
    text-align: center;
	font-size: x-large;
	font-weight: bold;
 }
 
h2 {
	text-align: center;
	font-size: medium;
	font-weight: bold;
 }
 
h3 {
	text-align: center;
	font-size: small;
	font-weight: normal;
 } 

 
h4 {
	text-align: center;
	font-size: x-small;
	font-weight: normal;
 } 

p {
	padding: 0px 20px;
    text-align: left;
	font-size: medium;
	font-weight: normal;
 }
 
footer
 {
	text-align: center;
	font-size: very-small;
    font-weight: normal;
 }

.rotateimg90 {
  -webkit-transform:rotate(90deg);
  -moz-transform: rotate(90deg);
  -ms-transform: rotate(90deg);
  -o-transform: rotate(90deg);
  transform: rotate(90deg);
}