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

header{
    display: flex;
    flex-direction: column;
    align-items: center;
    height: 500px;
    background-color: #3dd0ac;
    color: white;
    background-image: url(tree.png);
    background-repeat: no-repeat;
    background-size: 480px;
    background-position: -25px -70px;
    box-shadow: 0 0 20px rgba(0,0,0,.2);
}

#tree{
    position: absolute;
    margin-top: -100px;
    scale: 0.5;
}

nav{
    width: 800px;
}

nav ol{
    display: flex;
    justify-content: center;
    list-style: none;
    scale: 1.2;
}

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{
    color: black;
    text-decoration-line: underline;
    font-size: 20px;
}

nav .active{
    text-decoration: none;
    color: #3dd0ac;
    margin-left: 30px;
    background-color: white;

}

header .title{
    display: flex;
    flex-direction: column;
    margin-top: 300px;
    text-transform: uppercase;
    font-size: 45px;
    align-items: center;
}

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

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

section h1{
    text-align: center;
    font-size: 45px;
    letter-spacing: 4px;
}

section p{
    margin: 10px 10px;
}

section{
    align-items: center;
}

iframe{
    display: flex;
    margin: auto;
}

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

footer{
    display: flex;
    flex-direction: column;
    background-color: #3dd0ac;
    color: white;
    box-shadow: 0 0 20px rgba(0,0,0,.2);
    height: 40px;
    padding: 10px;
    justify-content: center;
    align-items: center;
}

#version {
    text-decoration: none;
    color: white;
    margin-left: 30px;
    background-color: rgb(210, 203, 74);
}