图书营业执照经营范围怎么选
```html
body {
fontfamily: Arial, sansserif;
margin: 0;
padding: 0;
}
.banner {
width: 100%;
backgroundcolor: 007bff;
color: fff;
textalign: center;
padding: 20px 0;
}
h1 {
fontsize: 36px;
marginbottom: 10px;
}
p {
fontsize: 18px;
marginbottom: 20px;
}
.ctabtn {
backgroundcolor: fff;
color: 007bff;
border: none;
padding: 10px 20px;

fontsize: 20px;
borderradius: 5px;
textdecoration: none;
transition: backgroundcolor 0.3s;
}
.ctabtn:hover {
backgroundcolor: e6e6e6;
}