body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
}
.row {
  display: flex;
  height: 100vh;
}
.col {
  flex: 1;
  padding: 10px;
  border-right: 1px solid #ccc;
  overflow-y: auto;
}
#colonne_droite {
  border-right: none;
}
table {
  width: 100%;
  border-collapse: collapse;
}
th, td {
  border: 1px solid #ccc;
  padding: 5px;
  text-align: center;
}
#clavier_numerique button,
#actions_droite button,
.icon-btn {
  width: 60px;
  height: 60px;
  margin: 5px;
  font-size: 18px;
}