body {
  margin: 0;
  background: #ececec;
  }
  .hd {
  background: #236be2;
  padding: 25px;
  width: 100%;
  text-align: center;
  }
  .logo {
  text-align: center;
  }
  .logo img {
  width: 45%;
  }
  .nv {
  padding: 5px;
  background: #4b4b4b;
  text-align: center;
  }
  
  .nv a {
  text-decoration: none;
  color: white;
  margin: 2px;
  padding: 5px;
  font-size: 18px;
  background: #6d6b6b;
  }
  
  .nv a:hover {
  background: #236be2;
  
  }
  .ft {
background: #6d6b6b;
width: 100%;
text-align: center;
color: white;
bottom: 0px;
position: absolute;
}
.etar {
    margin: 25px;
    border: solid #0b72d2 4px;
    border-radius: 35px;
    padding: 40px;
    text-align: center;
}