body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  background-image: url('img/00.jpeg');
  background-repeat: no-repeat;
  background-attachment: fixed;
  background-size: cover;
  background-size: 100%;
}
.topnav {
  overflow: hidden;
  background-color: lightgray;
}

.topnav a {
  float: left;
  color: #007dbc;
  text-align: center;
  padding: 0.5vw 0.5vw;
  text-decoration: none;
  font-size: 1.2vw;
}

.topnav a:hover {
  background-color: #ddd;
  color: black;
}

.topnav a.active {
  background-color: #007dbc;
  color: white;
}

.TableGym{
  margin-left: 15vw;
  width: 70%;
  height: 100%;
  font-size: 30px;
}