* {
    color: #f1f1f1
}

h2 {
    text-align: center;
    text-decoration: underline;
}

body {
    margin: 0;
    padding: 0;
    font-family: 'Trebuchet MS', 'Lucida Sans Unicode', 'Lucida Grande', 'Lucida Sans', Arial, sans-serif;
    font-size: 25px;
    font-weight: bold;
    background-color: #323639;
    text-align: center;
}

.topnav {
    background-color: #282828;
    height: 75px;
    overflow: hidden;
}

p {
    font-size: 25px;
}

.error {
    display: none;
}

h2 {
    font-family: 'Times New Roman', Times, serif;
}

/* rule for top level div element */
#container {
    width: 1024px;
    margin: auto;
}

/* rule for first level nested div element */
#content {
    border: 13px solid black;
    border-radius: 10px;
    margin: 100px 200px 100px;
    width: 55%;
    padding-right: 35px;
}

.label {
    display: inline-block;
    margin-bottom: 5px;
    margin-top: 10px;
    text-align: end;
}

form {
    display: inline-block;

}

input {
    width: 300px;
    height: 30px;
    margin-bottom: 5px;
    margin-top: 10px;
    margin-left: 10px;
    font-size: 19px;
    color: #000000;
}

#captcha {
    width: 300px;
    height: 30px;
    margin-bottom: 5px;
    margin-top: 10px;
    margin-left: 10px;
    font-size: 19px;
    color: #000000;
}

#signup_form .label {
    float: left;
    width: 140px;
}

textarea {
    width: 200px;
}

/* for errors */
#signup_form .error {
    color: red;
    font-weight: bold;
    font-size: 16px;
    position: relative;
}

#signup_submit {
    font-weight: bold;
    font-size: 17px;
    background-color: red;
    color: #f1f1f1;
    font-family: 'Trebuchet MS', 'Lucida Sans Unicode', 'Lucida Grande', 'Lucida Sans', Arial, sans-serif;
    border: none;
    height: 30px;
    width: 180px;
}

#signup_submit:hover {
    background-color: darkred;
}

/* Mobile-first styles */
body {
    font-size: 20px;
}

#container {
    width: 100%;
    padding: 10px;
    box-sizing: border-box;
}

#content {
    width: 100%;
    border: 10px solid black;
    margin: 20px 0;
    padding: 20px;
}

input {
    width: 100%;
    box-sizing: border-box;
}

#captcha {
    width: 100%;
    box-sizing: border-box;
}

/* Tablet and larger screens */
@media screen and (min-width: 768px) {
    body {
        font-size: 25px;
    }

    #container {
        max-width: 768px;
    }

    #content {
        width: 70%;
        margin: 100px auto;
    }

    input {
        width: 70%;
    }

    #captcha {
        width: 70%;

    }
}


body {
    background-color: #323639;
    color: #fff;
}

.topnav {
    background-color: #282828;
    height: 75px;
    overflow: hidden;
}

#container {
    width: 100%;
    max-width: 768px;
    margin: auto;
    padding: 10px;
    box-sizing: border-box;
}

#content {
    border: 10px solid #000;
    border-radius: 10px;
    margin: 100px auto;
    width: 70%;
    padding: 20px;
    background-color: #1c1c1c;
}

.label {
    display: block;
    text-align: left;
    margin: 5px 0;
}

input {
    width: 100%;
    height: 40px;
    margin: 5px 0;
    font-size: 20px;
    color: #000;
    padding: 5px;
    border: 1px solid #ccc;
    border-radius: 5px;
    background-color: #fff;
}

#captcha {
    width: 100%;
    height: 40px;
    margin: 5px 0;
    font-size: 20px;
    color: #000;
    padding: 5px;
    border: 1px solid #ccc;
    border-radius: 5px;
    background-color: #fff;
}




.error {
    color: red;
    font-weight: bold;
    font-size: 16px;
    position: relative;
}

#signup_submit {
    font-weight: bold;
    font-size: 20px;
    background-color: red;
    color: #fff;
    border: none;
    height: 40px;
    width: 100%;
    cursor: pointer;
}

#signup_submit:hover {
    background-color: darkred;
}