body {
    margin : 0;
}
.sommaire{
color: rgb(255, 255, 255);

}

a {
  text-decoration: none;
  color: inherit;
}

header {
display: flex;
flex-direction: row;
justify-content: space-around;
align-items: center;
background-color: rgb(18, 89, 96);
height: 50px;
}


form {
    margin-top: 30px;
    align-items: center;
    background-color: white;
}