html, body {
  background: #2980B9;
  background: -webkit-linear-gradient(to right, #FFFFFF, #6DD5FA, #2980B9);
  background: linear-gradient(to right, #FFFFFF, #6DD5FA, #2980B9);
  min-width: 400px;
}

#ville {
  text-transform: capitalize;
}

#temperature {
  font-size: 4em;
}

#changer {
  background: rgba(178, 223, 251, .3);
  cursor: pointer;
}