* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background-image: linear-gradient(45deg,#00FFFF,#191970);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    font-family: Verdana, Geneva, Tahoma, sans-serif;
    padding-right: 1rem;
    padding-left: 1rem;
}

h1,
h2 {
    font-size: 3rem;
    color: #fff;
    margin-bottom: 2rem;
    text-align: center;
    line-height: 1.2;
}
h3 {
    font-size: 15px;
    color: #ffd800;
    margin-bottom: 2rem;
    text-align: center;
    line-height: 1.2;
}

    h1::before {
        content: "";
        display: block;
    }

    h2::before {
        content: "";
        display: block;
    }

.form {
    width: 100%;
    max-width: 32rem;
    font-size: 1.125rem;
}

    .form label,
    .form input,
    .form textarea,
    .form button {
        display: block;
        width: 100%;
    }

    .form label {
        color: #fff;
        line-height: 1;
        margin-bottom: 0.5rem;
    }

    .form input,
    .form textarea {
        font: inherit;
        padding: 0.8rem;
        margin-bottom: 1rem;
        border: 1px solid transparent;
        border-radius: 8px;
        transition: border-color, box-shadow 0.2s;
    }

    .form textarea {
        min-height: 13rem;
        resize: vertical;
    }

        .form input:hover,
        .form input:focus,
        .form textarea:hover,
        .form textarea:focus {
            outline: none;
            border-color: #09d;
            box-shadow: 0 0 0 3px #4dc8ff;
        }

    .form button {
        display: block;
        padding: 1rem;
        background: #0072c4;
        color: #fff;
        font: inherit;
        text-transform: uppercase;
        border: none;
        border-radius: 8px;
        cursor: pointer;
        transition: 0.2s;
    }

        .form button:hover,
        .form button:focus {
            outline: none;
            background: #09d;
        }