/* css/site3.css */
body {
  background-color: #C4E3CE;
}
h1 {
  text-align: center;
  font-family: Georgia;
  font-size: 45px;
  font-weight: bold;

}
h2 {
  text-align: center;
  font-family: Georgia;
  font-weight: bold;
}
.nav_bar{
  margin: auto;
  width: 860px;
  padding: 0px 20px 0px 20px;
  margin-top: 30px;
  border-bottom: 1px solid #000000;
  height: 64px;
}
.nav_bar ul{
  padding: 0;
  list-style: none;
}
.nav_bar ul li{
  float: left;
  font-size: 16px;
  font-weight: bold;
  margin-right: 5px;

}
.nav_bar ul li a {
  text-decoration: none;
  color: #ffffff;
  background: #6B6868;
  border: 1px solid #C4E3CE;
  border-bottom: none;
  padding: 20px 20px 20px 20px;
  -webkit-border-top-right-radius: 10px;
  -webkit-border-top-left-radius: 10px;
  -moz-border-radius-topleft: 10px;
  -moz-border-radius-topright: 10px;
  width: 75px;
  display: block;
  text-align: center;
}
.nav_bar ul li a:hover {
  text-decoration: none;
  color: #ffffff;
  background: #000000;
  -moz-transition: background-color 200ms ease-in;
  -webkit-transition: background-color 200ms ease-in;
  -ms-transition: background-color 200ms ease-in;
  -o- transition: background-color 200ms ease-in;
  transition: background-color 200ms ease-in;
}
.main_container { 
  margin: auto;
  width: 860px;
  padding: 20px;
  border: 1px solid #000000;
  min-height: 400px;
  border-top: none;
  background: #ffffff;
}