header{
    height: 25vh;
}
h1{
    text-align: center;
    margin-bottom: 1em;
}

h2{
    margin-top: 1em;
}


.menu > ul{
    border: solid 1px black;
}
.menu ul > li{
    padding: 1.5em;
    border-right: solid black 1px;
    box-sizing: border-box;
}

.has-sous-menu{
    position: relative;
}
.sous-menu{
    display: none;
    position: absolute;
    background-color: #FFF;
    top: 64px;
    left: 0;
    width: max-content;
}
.sous-menu a{
    text-decoration: none;
}
.has-sous-menu:hover .sous-menu{
    display: block;
}

.sous-menu



.all-pack{
    background-color: #F5F5F5;
    border: solid 2px #ececec;
    padding-top: 2em;
}
.pack-cards{
    width: 90%;
    margin: 0 auto;
    justify-content: space-around;
    padding-bottom: 2em;
    padding-top: 1em;
}
.pack-card{
    width: 30%;
    flex-direction: column;
    align-items: center;
    text-align: center;
}
.pack-card h3, .pack-card p{
    margin: 1em 0;
}
.pack-card img{
    width: 238px;
    height: 272px;
}