body {
fontfamily: Arial, sansserif;
margin: 0;
padding: 20px;
}
h1 {
textalign: center;
marginbottom: 30px;
}
.container {
display: flex;
justifycontent: center;
}
.card {
width: 300px;
padding: 20px;
border: 1px solid ccc;
borderradius: 8px;
textalign: center;
margin: 10px;
}
.card:hover {
transform: scale(1.05);
transition: transform 0.3s;
}
.card h2 {
marginbottom: 15px;
}
.card p {
color: 777;
}
区块链电子发票主页面