/* .exos {
    margin-top: 200px;
} */

button {
    display: block;
    margin: 30px 10px;
    padding: 10px;
    box-shadow: 1px 1px 6px rgb(0 0 0 / 0.2);
    cursor: pointer;
  
}
.ligne {
    display: inline-block;
    margin-bottom: 0;
}
.marge-bas {
    margin-bottom: 0;
}
.container {
    display: none;
    border-radius: 5px;
    background-color: #f2f2f2;
    padding: 20px;
    width: 25%;
}
.visible {
    display: block!important;
}
form {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}
input {
    margin: 10px;
    height : 30px;
    width : 20vw;
    padding: 5px;
    font-size: 16px;
}
input:not(.submit) {
    background-color: rgb(186, 247, 247);
}
.submit {
    cursor: pointer;
    height : 40px;
    width : 21.2vw;
}