styles.css

body {
    display: flex;
    flex-direction: column;
    justify-content: center;
    font-family: 'Arial', sans-serif;
    background:linear-gradient(to right, aquamarine, rgb(198, 228, 198));
    background-size: cover;
}
header{
    text-align: center;
    align-items: center;
    justify-content: center;
}
nav ul {
    list-style-type: none;
    padding: 0;
    margin: 0;
}
nav li {
    display: inline-block;
    margin-right: 15px;
}
nav a {
    text-decoration: none;
    padding: 8px 15px;
    border: 1px solid #ccc;
    border-radius: 5px;
}
a:hover{
    background-color: gold;
}

h2{
    text-align: center;
}
.cadre{
    background-color: rgb(19, 18, 18);
    width: 33.33%;
    padding: 1vh;
    border-radius: 15px;
    margin: 0 auto;
    margin-top: 3%;
    padding-left: 1%;
    color: white;

}
.formulaire{
    display: flex;
    flex-direction: column;
    grid-template-columns: 1fr; 
    grid-gap: 30px;
}
input{
    background: rgb(19, 18, 18);
    color: white;
}
input:invalid{
    border: 1px solid red;
}
::placeholder{
    color: gray;
}
.butt{
    background-color: azure;
    width: 140px;
    height: 30px;
    color: black;
}
.boiteAboutton{
    text-align: center;
    align-items: center;
    justify-content: space-between;
    margin-top: 30px;
    margin-bottom: 30px;
    display: flex;
    margin-left: 100px;
    margin-right: 100px;
}
.restri{
    font-size: 14px;
    color: #666;
    margin-top: 0;
}
.choixJeu{
    padding: 1%;
    margin: 1%;
    height: 350px;
}
select{
    width: 180px;
}
.boiteAbouttonJeu{
    text-align: center;
    align-items: center;
    justify-content: space-between;
}
.imageChoix{
    width: 97%;
    height: 300px;
    padding: 1%;
    margin-top: 1rem;
}

/* mdp strength */

#strength-indicator {
    width: 620px;
    /* Ajustez la largeur selon vos besoins */
    height: 30px;
    /* Ajustez la hauteur selon vos besoins */
}

.faible {
    background-color: red;
    background-image: url('chemin/vers/image-faible.png');
}

.moyen {
    background-color: orange;
    background-image: url('chemin/vers/image-moyen.png');
}

.fort {
    background-color: green;
    background-image: url('chemin/vers/image-fort.png');
}