style.css

@import url('https://fonts.googleapis.com/css2?family=PT+Sans:wght@400;700&display=swap');

* {
    margin: 0;
    padding: 0;
    font-family: "PT Sans";
}

body {
    background-color: darkblue;
    display: flex;
    align-items: center;
    width: 100%;
    height: 100vh;
    justify-content: center;
}

.form {
    width: 55%;
    border-radius: 5px;
    padding: 30px;
    background-color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
}

.item{
    width: 85%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.form .inputs {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.form .inputs input {
    padding: 10px 20px;
    width: 100%;
    border-radius: 5px;
    border: 1px solid darkblue;
    outline: none;
    font-size: 15px;
}

.form .inputs button {
    padding: 10px 20px;
    background-color: darkblue;
    color: #fff;
    border-radius: 5px;
    border: 1px solid darkblue;
    font-size: 15px;
    margin-left: 10px;
    cursor: pointer;
}

.form .container {
    width: 100%;
    height: auto;
    max-height: 250px;
    overflow-y: scroll;
    display: flex;
    align-items: center;
    justify-content: flex-start;
    flex-direction: column;
    margin-top: 10px;
}

.form .container li {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    height: 50px;
    list-style: decimal !important;
    margin-top: 10px;
}

.form .container li button {
    padding: 10px;
    background-color: darkblue;
    border: 1px solid darkblue;
    border-radius: 5px;
    color: #fff;
    font-size: 15px;
    cursor: pointer;
    transition: 0.4s;
    margin-left: 10px;
}

.form .container li button i {
    font-size: 18px;
}

.form .container li button:hover {
    background-color: transparent;
    color: darkblue;
}

.form .container li input {
    font-size: 16px;
    border: 0;
    outline: 0;
    border-bottom: 1px solid darkblue;
    padding: 10px 0;
}

#how{
    position: fixed;
    top: 20px;
    right: 30px;
    color: #fff;
}

.not{
    font-size: 19px;
    color: #555;
    margin-top: 15px;
}