style.css

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
body {
    background-image: url('backgroundIMG2.jpg');
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
    height: 100%;
    width: 100%;
}
header{
    height: 70px;
    background-color: white;
    display: flex;
    justify-content: space-around;
    align-items: center;
}
ul{
    display: flex;
    list-style-type: none;
    align-items: center;
}
ul li {
    padding: 0 10px;
}
ul li a{
    text-decoration: none;
    color: black;
}
.dropdown {
    border-style: none;
}
#tittle {
    color: black;
    justify-content: center;
    display: flex;
    letter-spacing: 10px;
    font-size: 50px;
    padding-top: 200px;

}
#paragraph {
    color: black;
    justify-content: center;
    display: flex;
    letter-spacing: 1px;
    font-size: 30px;
}
#sign-in {
    display: flex;
    color: black;
    justify-content: center;
}
#button {
    padding: 10px 20px;
    
}