body {
    background-color: #2b2c3a;
    padding: 20px;
}
  
#blossom_container {
    background-color: transparent;
    position: fixed;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    z-index: -1;
}


.petal.petal-style1 {
    width: 45px;
    height: 20px;
    background-position: -31px 0;
}
.petal.petal-style2 {
    width: 42px;
    height: 22px;
    background-position: 0 -23px;
}
.petal.petal-style3 {
    width: 37px;
    height: 24px;
    background-position: 0 -50px;
}
.petal.petal-style4 {
    width: 26px;
    height: 34px;
    background-position: -49px -35px;
}