body {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
    background-color: #f0f0f0;
    font-family: Arial, sans-serif;
}

nav {
    position: absolute;
    top: 0;
    width: 100%;
    background-color: #337ab7;
    color: white;
    padding: 10px 0;
}

.menu {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: space-around;
}

.menu li a {
    color: white;
    text-decoration: none;
}

.registration form {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background-color: white;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0px 0px 10px 0px #000;
    width: 100%;
}

.registration form label {
    text-align: left;
    width: 100%;
}

.registration form input[type="text"], .registration form input[type="tel"], .registration form input[type="email"], .registration form input[type="password"], .registration form input[type="date"] {
    width: 100%;
    height: 30px;
    border-radius: 5px;
    margin-bottom: 20px;
}

.registration form input[type="submit"] {
    background-color: #4CAF50;
    border: none;
    color: white;
    padding: 15px 32px;
    text-align: center;
    text-decoration: none;
    font-size: 60%;
    cursor: pointer;
    border-radius: 10px;
}