```html
body {
fontfamily: Arial, sansserif;
backgroundcolor: f0f0f0;
margin: 0;
padding: 20px;
}
.container {
maxwidth: 800px;
margin: 0 auto;
}
h1 {
textalign: center;
color: 333;
}
.gallery {
display: grid;
gridtemplatecolumns: repeat(autofit, minmax(300px, 1fr));
gap: 20px;
margintop: 20px;
}
.gallery img {
width: 100%;
height: auto;
borderradius: 5px;
boxshadow: 0 0 10px rgba(0, 0, 0, 0.1);
}
毛毛的可爱照片