body{background-color:aliceblue;}
form{
    background-color: white;
    border-radius: 16px;
    padding: 16px;
    box-shadow: 0 2px 1px -1px #0003, 0 1px 1px #00000024, 0 1px 3px #0000001f;
    width:60%;
}
h1{ 
    margin: 50px auto;
}
label {
  width: 150px;
  display: inline-block;
}
input {
  width: 250px;
  padding: 6px 12px;
  border-radius: 5px;
  border: 1px solid gray;
  font-size: 1em;
  box-sizing: border-box; /* pour s'assurer que les margin/padding n'impacte pas la largeur width */
}
input:invalid{
   border:  solid red;

}
.btn-primary {
  border-radius: 5px;
  padding: 6px 12px;
  background-color: #0d6efd;
  border-color: #0d6efd;
  color: #fff;
  cursor: pointer;
  text-decoration: none;
  width: 250px;
}
form:invalid button[type="submit"] {
  background-color: gray;
}
input:invalid + .icon-ok {
  display: none;
}
input:valid + .icon-ok {
  display: inline-block;
}
.icon-ok{
color:green;

}
#emoji{
  border:solid black;
}