```html
body {
fontfamily: Arial, sansserif;
margin: 0;
padding: 0;
backgroundcolor: f0f0f0;
}
.container {
width: 80%;
margin: 20px auto;
backgroundcolor: fff;
borderradius: 10px;
boxshadow: 0 0 10px rgba(0, 0, 0, 0.1);
overflow: hidden;
}
.header {
backgroundcolor: 2c3e50;
color: fff;
textalign: center;
padding: 20px;
}
.postercontent {
padding: 40px;
textalign: center;
}
h1 {
fontsize: 36px;
marginbottom: 20px;
}
p {
fontsize: 18px;
lineheight: 1.6;
marginbottom: 20px;
}
.button {
display: inlineblock;
padding: 10px 20px;
backgroundcolor: 3498db;
color: fff;
textdecoration: none;
borderradius: 5px;
fontsize: 18px;
transition: backgroundcolor 0.3s ease;
}
.button:hover {
backgroundcolor: 2980b9;
}
.posterimage {
margintop: 40px;
textalign: center;
}
img {
maxwidth: 100%;
height: auto;
}
.footer {
backgroundcolor: 34495e;
color: fff;
textalign: center;
padding: 20px;
}
Explore the World of Blockchain and Cryptocurrency
Unlock the potential of blockchain technology and delve into the world of cryptocurrency. Discover how decentralized finance (DeFi) is revolutionizing traditional finance, offering greater accessibility and transparency.