body {
    padding: 0;
    margin: 0;
    font-family: Arial, Helvetica, sans-serif
}

header {
    display: flex;
    flex-direction: column;
    align-items: center;
    height: 250px;
    background-color: rgb(210, 203, 74);
    color: white;
    background-image: url(tree.png);
    background-repeat: no-repeat;
    background-size: 250px;
    background-position: 10px;
    box-shadow: 0 0 20px rgba(0, 0, 0, .2);
}

#tree {
    display: flex;
    flex-direction: column;
    align-items: baseline;
}

nav {
    width: 800px;
}

nav ol {
    display: flex;
    justify-content: center;
    list-style: none;
    scale: 1.1;
}

nav a {
    padding: 5px;
    text-decoration: none;
    color: white;
    margin-left: 20px;
    text-transform: uppercase;
    border-radius: 5px;
    transition: 0.3s ease;
}

nav a:hover {
    font-size: 20px;
}

nav .active {
    text-decoration: none;
    color: rgb(210, 203, 74);
    margin-left: 30px;
    background-color: white;

}

header .title {
    display: flex;
    flex-direction: column;
    text-transform: uppercase;
    font-size: 45px;
    align-items: center;
}

section {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin: 20px 10px;
    color: grey;
    margin-top: -25px;
}

article {
    display: flex;
    flex-direction: column;
    width: 760px;
}

section h1 {
    text-align: center;
    font-size: 45px;
}

section p {
    margin: 10px 10px;
}

section {
    align-items: center;
    margin-bottom: 40px;
}

iframe {
    display: flex;
    margin: auto;
    border-radius: 20px;
}

#text {
    margin-top: -25px;
}

footer {
    display: flex;
    flex-direction: column;
    text-align: center;
    font-size: 80%;
    padding: 7px 0px 0px 20px;
    position: fixed;
    left: 0;
    bottom: 0;
    width: 100%;
    background-color: rgb(210, 203, 74);
    color: white;
    height: 20px;
}

#version {
    text-decoration: none;
    color: white;
    margin-left: 30px;
    background-color: #3dd0ac;
}