* {
    box-sizing: border-box;
}

body {
    font-family: Arial, Helvetica, sans-serif;
    background-color: #0f0f0f;
    color: #ffffff;
    margin: 0;
    padding: 0;
}

.container {
    max-width: 800px;
    margin: 60px auto;
    padding: 30px;
    background-color: #1a1a1a;
    border-radius: 10px;
}

h1 {
    font-size: 32px;
    margin-bottom: 20px;
}

p {
    line-height: 1.6;
    margin: 12px 0;
}

strong {
    color: #cccccc;
}

a {
    color: #6aa9ff;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

footer {
    margin-top: 40px;
    font-size: 14px;
    color: #888;
}

a.bts{
    position: absolute;
    background: #000;
    color: white;
    text-align: center;
    width: 200px;
}
div.bts {
    background: #000;
}