body {
  font-family: Arial, Helvetica, sans-serif;
  background-image: url("fondoSesion.jpg");
}
form {
  background-color: #eee;
  margin: 2cm auto;
  width: 400px;
  padding: 20px;
  border: 1px solid black;
  border-radius: 10px;
}

input {
  /* border: solid 0; */
  border: 1px solid black;
  border-radius: 5px;
  margin-top: 0.2cm;
}

.usuario {
  font-weight: bold;
}

input[type="text"],
input[type="password"] {
  padding: 10px;
  font-size: 18px;
  outline: none;
  width: 370px;
}
input[type="submit"] {
  background-color: #1e69e3;
  color: white;
  padding: 8px;
  border: none;
  width: 200px;
}
.center {
  text-align: center;
}

.opcion {
  padding: 5px 0;
}

.barra {
  background-color: rgb(152, 196, 236);
  border-radius: 4px;
  padding: 10px;
}

.seleccionado {
  background-color: rgb(33, 90, 143);
  border-radius: 4px;
  color: white;
  padding: 10px;
}

#menu {
  background-color: #eee;
  padding: 10px;
}
#menu ul {
  margin: 0;
  padding: 0;
  list-style: none;
  display: inline-block;
  width: 100%;
}
#menu ul li {
  display: inline;
}
#menu ul li a {
  color: #1e69e3;
  text-decoration: none;
}
#menu ul li a:hover {
  color: rgb(227, 109, 30);
  text-decoration: none;
}
.cerrar-sesion {
  float: right;
}

@media (max-width:500px){
    
    form {
  background-color: #eee;
  margin: 2cm auto;
  width: 300px;
  padding: 20px;
  border: 1px solid black;
  border-radius: 10px;
}
input[type="text"],
input[type="password"] {
  padding: 10px;
  font-size: 18px;
  outline: none;
  width: 275px;
}
}