body {
 background: #ECECEC url(../img/delta.jpg) no-repeat fixed 50% 50%;
 }
h1 {
 text-align: center;
 }
h2 {
 border-bottom: 1px solid gray;
 text-align: center;
 }
.intro {
  text-align: center;
  }
.text-bg-white {
 background-color: #fff;
 }
.index {
 font-weight: bold;
 font-size: x-large;
 background-color: #fff;
 }
ul.indexlist {
 text-align: center;
 list-style-type: none;
 }
a:hover {
 color:#FF6FCF;
 background-color:#800080;
 }
.netabare{
 font-weight: bold;
 font-size: xx-large;
 color: #FF0000;
 background-color: #fff;
 }