*
{
    margin: 0;
    padding: 0;
    font-family: sans-serif;
    box-sizing: border-box;

}
body
{
    display: flex;
    justify-content: center;
    flex-direction: column;
    align-items: center;
    height: 100vh;
    background-image: url(https://images.pexels.com/photos/1157386/pexels-photo-1157386.jpeg?auto=compress&cs=tinysrgb&w=600);
    background-size: cover;
    background-position: center;
}
form
{
    margin-top: 50px;
    text-align: center;

}
input
{
    display: block;
    width: 350px;
    height: 40px;
    margin: 20px;
    border: none;
    outline: none;
    font-size: 20px;
    border-bottom: 1px solid black;
    background: transparent;
    color: black;
}
button
{
    width: 350px;
    height: 40px;
    font-size: 20px;
    background-color: aquamarine;
    border: none;
    margin-top: 20px;
}
form h1
{
    margin: 30px;

}
::placeholder
{
    color: white;
}
h1
{
    color: black;
}