html {
    background-color: rgb(23, 170, 0);
    padding: 10px;
    margin: 10px;
    border: 1px solid black;
}

body {
    background-color: rgb(51, 255, 0);
    padding: 10px;
    margin: 10px;
    border: 1px solid black;
}

header {
    background-color: rgb(62, 136, 20);
    color: #fff;
    padding: 20px;
}

nav {
    background-color: rgb(102, 175, 73);
    color: #fff;
    padding: 10px;
}

nav ul {
    padding: 0;
    margin: 0;
}

nav ul li {
    display: inline-block;
    margin: 5px;
}

nav ul li button{
    border-radius: 10px;
    background-color: rgb(30, 255, 0);
}

nav ul li button:hover{
    background-color: rgb(43, 226, 43);
}

a {
    text-decoration: none;
    font-size: 18px;
    font-weight: bold;
}

section {
    background-color: rgb(39, 165, 35);
    padding: 10px;
    margin: 10px;
    border: 1px solid black;
    display: flex;
    text-align: center;
}

article, aside {
    background-color: rgb(133, 255, 102);
    padding: 10px;
    margin: 10px;
    border: 1px solid black;
    text-align: center;
}

h2, p, img, audio, video, iframe {
    background-color: rgb(170, 255, 153);
    padding: 10px;
    margin: 10px;
    border: 1px solid black;
}

img, audio, video, iframe {
    width: 500px;
}

#contact {
    display: block;
    text-align: center;
}

.file {
    background-color: rgb(85, 255, 0);
}

footer {
    background-color: rgb(51, 51, 51);
    color: #fff;
    padding: 20px;
}

/* Media Queries */

/* Extra Small screens */
@media only screen and (max-width: 600px) {
    * {
        padding: 5px !important;
        margin: 5px !important;
    }

    nav ul li {
        display: block;
        margin-bottom: 10px;
    }

    nav ul li button {
        width: 100%;
    }

    section {
        display: block;
    }

    img, audio, video, iframe {
        width: 300px;
    }
}

/* Small screens */
@media only screen and (min-width: 601px) and (max-width: 800px) {
    * {
        padding: 10px !important;
        margin: 10px !important;
    }

    nav ul {
        text-align: center;
    }

    nav ul li {
        display: block;
        margin-bottom: 10px;
    }

    nav ul li button {
        width: 50%;
    }

    section {
        display: block;
    }

    img, audio, video, iframe {
        width: 400px;
    }
}

/* Medium screens */
@media only screen and (min-width: 801px) and (max-width: 1000px) {
    nav ul li {
        display: inline;
        margin-right: 5px;
    }

    section {
        display: block;
    }
}

/* Large screens */
@media only screen and (min-width: 1001px) and (max-width: 1200px) {
    nav ul li {
        display: inline-block;
        margin-right: 20px;
    }

    section {
        display: block;
    }
}
html {
    background-color: rgb(23, 170, 0);
    padding: 10px;
    margin: 10px;
    border: 1px solid black;
}

body {
    background-color: rgb(51, 255, 0);
    padding: 10px;
    margin: 10px;
    border: 1px solid black;
}

header {
    background-color: rgb(62, 136, 20);
    color: #fff;
    padding: 20px;
}

nav {
    background-color: rgb(102, 175, 73);
    color: #fff;
    padding: 10px;
}

nav ul {
    padding: 0;
    margin: 0;
}

nav ul li {
    display: inline-block;
    margin: 5px;
}

nav ul li button{
    border-radius: 10px;
    background-color: rgb(30, 255, 0);
}

nav ul li button:hover{
    background-color: rgb(43, 226, 43);
}

a {
    text-decoration: none;
    font-size: 18px;
    font-weight: bold;
}

section {
    background-color: rgb(39, 165, 35);
    padding: 10px;
    margin: 10px;
    border: 1px solid black;
    display: flex;
    text-align: center;
}

article, aside {
    background-color: rgb(133, 255, 102);
    padding: 10px;
    margin: 10px;
    border: 1px solid black;
    text-align: center;
}

h2, p, img, audio, video, iframe {
    background-color: rgb(170, 255, 153);
    padding: 10px;
    margin: 10px;
    border: 1px solid black;
}

img, audio, video, iframe {
    width: 500px;
}

#contact {
    display: block;
    text-align: center;
}

.file {
    background-color: rgb(85, 255, 0);
}

footer {
    background-color: rgb(51, 51, 51);
    color: #fff;
    padding: 20px;
}

/* Media Queries */

/* Extra Small screens */
@media only screen and (max-width: 600px) {
    * {
        padding: 5px !important;
        margin: 5px !important;
    }

    nav ul li {
        display: block;
        margin-bottom: 10px;
    }

    nav ul li button {
        width: 100%;
    }

    section {
        display: block;
    }

    img, audio, video, iframe {
        width: 300px;
    }
}

/* Small screens */
@media only screen and (min-width: 601px) and (max-width: 800px) {
    * {
        padding: 10px !important;
        margin: 10px !important;
    }

    nav ul {
        text-align: center;
    }

    nav ul li {
        display: block;
        margin-bottom: 10px;
    }

    nav ul li button {
        width: 50%;
    }

    section {
        display: block;
    }

    img, audio, video, iframe {
        width: 400px;
    }
}

/* Medium screens */
@media only screen and (min-width: 801px) and (max-width: 1000px) {
    nav ul li {
        display: inline;
        margin-right: 5px;
    }

    section {
        display: block;
    }
}

/* Large screens */
@media only screen and (min-width: 1001px) and (max-width: 1200px) {
    nav ul li {
        display: inline-block;
        margin-right: 20px;
    }

    section {
        display: block;
    }
}