#editeur {
  max-height: 250px;
  max-width: 650px;
  margin: auto;
}

#tblform {
  min-width: 100%;
  margin: auto;
  border-spacing: 10px;
}

#tblform td {
  border:2px solid black;
}

#tblform td:hover {
  background-color:#A0B8DA;
}


.bigbtn {
  background-color: #4CAF50; 
  border: 2px solid grey;
  color: white;
  padding: 15px 32px;
  text-align: center;
  text-decoration: none;
  font-size: 16px;
  border-radius: 12px;
}

.bigbtn:hover {
    border: 2px solid black;
}

h1 {
  text-align: center;
}