body {
fontfamily: Arial, sansserif;
backgroundcolor: f4f4f4;
padding: 20px;
}
h1 {
textalign: center;
color: 333333;
}
.wallpapergallery {
display: flex;
flexwrap: wrap;
justifycontent: spaceevenly;
margintop: 20px;
}
.wallpaperitem {
margin: 10px;
maxwidth: 400px;
boxshadow: 0 0 10px 1px rgba(0, 0, 0, 0.1);
overflow: hidden;
}
.wallpaperitem img {
width: 100%;
height: auto;
display: block;
}