ul {

  list-style-type: none;
  width: 500px;
  margin: 0 auto;
  padding: 0;
  overflow: hidden;
  border: 1px solid #e7e7e7;
  background-color: #f3f3f3;
}

li {
  float: left;
  width: 33.33%;
}

li a {
  display: block;
  font-weight: bold;
  color: #666;
  text-align: center;
  padding: 14px 16px;
  text-decoration: none;
}

li a:hover:not(.active) {
  background-color: #292b2c;
}

li a.active {
  color: white;
  background-color: #a6b1e1;
}

body {
  background-image: url(https://www.estidia.eu/wp-content/uploads/2018/04/Savin-NY-Website-Background-Web.jpg);
  background-repeat: no-repeat;
  background-size: 1920px 1200px;
}
h1 {
  color: #0275d8;
}
h2{
  color: #0275d8;
}
.link {
  text-decoration: none;
}
strong {
  font-size: 18px;
}
form {
  font-size: 17px;
}
.btn {
   background: #3D94F6;
   background-image: -webkit-linear-gradient(top, #3D94F6, #1E62D0);
   background-image: -moz-linear-gradient(top, #3D94F6, #1E62D0);
   background-image: -ms-linear-gradient(top, #3D94F6, #1E62D0);
   background-image: -o-linear-gradient(top, #3D94F6, #1E62D0);
   background-image: -webkit-gradient(to bottom, #3D94F6, #1E62D0);
   -webkit-border-radius: 20px;
   -moz-border-radius: 20px;
   border-radius: 20px;
   color: #FFFFFF;
   font-family: Verdana;
   font-size: 16px;
   font-weight: 100;
   padding: 3px;
   -webkit-box-shadow: 1px 1px 20px 0 #000000;
   -moz-box-shadow: 1px 1px 20px 0 #000000;
   box-shadow: 1px 1px 20px 0 #000000;
   text-shadow: 1px 1px 20px #000000;
   border: solid #337FED 1px;
   text-decoration: none;
   display: inline-block;
   cursor: pointer;
   text-align: center;
}

.btn:hover {
   border: solid #337FED 1px;
   background: #1E62D0;
   background-image: -webkit-linear-gradient(top, #1E62D0, #3D94F6);
   background-image: -moz-linear-gradient(top, #1E62D0, #3D94F6);
   background-image: -ms-linear-gradient(top, #1E62D0, #3D94F6);
   background-image: -o-linear-gradient(top, #1E62D0, #3D94F6);
   background-image: -webkit-gradient(to bottom, #1E62D0, #3D94F6);
   -webkit-border-radius: 20px;
   -moz-border-radius: 20px;
   border-radius: 20px;
   text-decoration: none;
}