body {
    margin: 0;
}
main {
    width: 100%;
    height: 100vh;
    background-color: #fff;
}
section {
    width: 100%;
    max-width: 600px;
    max-height: auto;
    position: absolute;
    top: 50%;
    left: 50%;
    margin-right: -50%;
    transform: translate(-50%, -50%);
}
img {
    width: 90%;
    height: auto;
    margin-left: 1.4em;
}
.bttncntner {
    position: fixed;
    top: 8px;
    left: 8px;
    display: flex;
    flex-direction: row;
}
button {
    margin: 4px;
    padding: 8px;
    color: #0083AD;
    font-size: 12px;
    font-family: sans-serif;
    text-transform: uppercase;
    border: 1px solid #0083AD;
    border-radius: 4px;
    background-color: #e8e8e8;
    z-index: 10;
}
button:hover {
    background-color: #0083AD;
    color: #fff;
    border: #fff;
}