body {
  margin: auto;
  max-width: 800px;
  font-family: monospace;
}

h1 {
  margin-left: auto;
  margin-right: auto;
  margin-top: 1em;
  margin-bottom: 1.5em;
  text-align: center;
}

button{
  border-radius: 0.5em;
}

.on_air {
  color:white;
  background-color: silver;
  font-weight: bold;
  animation-name: clignotant;
  animation-duration: 0.25s;
  animation-iteration-count: infinite;
  animation-direction: alternate;
}

@keyframes clignotant {
  from {background-color: yellow;}
  to {background-color: orange;}
}

#tab_valeurs {
  font-family: monospace;
  font-size: medium;
  border-collapse: collapse;
  background-color: white;
  align-self: flex-start;
}


#tab_valeurs th,td {
  width: 7em;
  text-align: center;
}

#tab_valeurs th {
  border-bottom: 2px solid black;
}

canvas {
  background-color: white;
  align-self: flex-start;
}

#vues {
  display: flex;
  align-items: center;
  justify-content: space-around;
}