style.css

@import url('https://fonts.googleapis.com/css2?family=Poppins&display=swap');

* {
    margin: 0;
    padding: 0;
    font-family: 'Poppins';
}

body {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background-color: #A7A7A9;
}

.container {
    background-color: white;
    padding: 2rem;
    border-radius: 1rem;
    min-height: 45vh;
    width: auto;
    margin: 1rem;
}

form {
    margin: 2rem 0 1rem 0;
}

form select,
button,
input {
    width: 100%;
    border: none;
    outline: none;
    border-radius: 0.75rem;
}

form input {
    border: 1px solid lightgray;
    font-size: 1rem;
    height: 3rem;
    padding-left: 0.5rem;
}

.dropdown {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 2rem;
}

.dropdown i {
    font-size: 1.9rem;
    margin-top: 1.7rem;
}

.select-container img {
    max-width: 2.5rem;
}

.select-container {
    display: flex;
    justify-content: center;
    align-items: center;
    border: 1px solid lightgray;
    width: 8rem;
    height: 2.5rem;
    border-radius: 0.7rem;
}

.select-container select {
    font-size: 1rem;
    width: auto;
}

.msg {
    margin: 2rem 0 2rem 0;
    display: flex;
    justify-content: center;
    font-size: 1.4rem;
}

form button {
    height: 3.3rem;
    background-color: #3F7D20;
    color: white;
    font-size: 1.2rem;
    cursor: pointer;
}

.github-link {
    text-align: center;
    margin-top: 20px;
}

@media only screen and (max-width: 768px) {
    .container {
        margin: 3rem;
    }

    .select-container img {
        max-width: 1.5rem;
    }

    .select-container {
        width: 5.2rem;
    }

    .dropdown i {
        font-size: 1.3rem;
    }

    .msg {
        font-size: 1rem;
    }

    .github-link p {
        font-size: 0.8rem;
    }

    form button {
        font-size: 1rem;
    }

    .select-container select {
        font-size: 0.75rem;
    }
}