*{box-sizing: border-box;}
body{
  background-color: #90C7E3;

}
#trackhero{

  height: 250px;
  background-image: url(10k.jpg);
  background-size: 40% 90%;
  background-repeat: no-repeat;
  float:right;
}
#kerrhero{
  height: 250px;
  background-image: url(1500mFinal.jpg);
  background-size: 40% 90%;
  background-repeat: no-repeat;

  }

#wrapper{margin-left:auto;
				margin-right: auto;
				width:80%;
				background-color: #ffffff;
				min-width:960px;
				max-width: 2048px;
			box-shadow: 3px 3px 3px #333333;}

nav{background-color: #ffffff;
      		font-weight: bold;
      		padding:1.5em;
          float:left;
          width:160px;
      	}
nav a{text-decoration: none;
      padding-left: 10px;
      padding-right: 10px;}

header{
  background-color: #4A5469;
  		color:#ffffff;
  		height:60px;
  		text-align: center;
  		padding-top: 1px;
}
main{padding:1px 20px 20px 20px;
    display: block;
    margin-left: 190px;
    padding-top:1px;
    padding-right: 20px;
    padding-bottom: 20px;
    padding-left: 30px;
    overflow: auto;}

nav ul{list-style-type: none;
      text-align: center;
      font-size: 1.5em;
      margin:5px;
      padding: 10px;
        }
nav a{text-decoration: none;
      padding:10px;}
nav li{display: inline;}

img{
  height:250px;
  background-size: 40% 90%;
  background-repeat: no-repeat;
  float:right;
}