<!-- dom elements -->
<div class="sticker example-1"></div>
<div class="sticker example-2"></div>

.sticker {
width: 180px;
height: 180px;
}
// add image
.example-1 .sticker-img {
background-image: url(heroes-2.png);
}
// add color
.example-2 .sticker-img {
background-color: #ff4a85;
}
// change shadow opacity
.example-2 .sticker-shadow {
opacity: 0.6;
}

<!-- call sticker js -->
Sticker.init('.sticker');