@charset "utf-8";
/* CSS Document */
#serum h2 {
    margin: 0 calc(50% - 50vw);/*サイドぶちぬき*/
    width: 100vw;/*サイドぶちぬき*/
}
#serum #oil {
    background-image: url(https://araitai.itembox.design/item/item_images/bodycare/shiromuku/serum/uru_bg_pc.jpg);
    background-repeat: repeat-y;
    background-position: center top;
    padding: 100px;
    background-size: 100% auto;
}
#serum #nama {
    background-image: url(https://araitai.itembox.design/item/item_images/bodycare/shiromuku/serum/nama_bg_sp.jpg?t=202302221842);
    background-repeat: repeat-y;
    background-position: center top;
    padding: 100px 10px;
    background-size: 100% auto;
}
#serum #nama .w_bg {
    width: 740px;
    margin-left: auto;
    margin-right: auto;
    background-color: #FFFFFF;
    padding: 50px 50px;
}
#serum #use ul {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
}
#serum #use ul li {
    width: 23%;
    border-bottom: 20px solid #fff;
}
#serum #use ul li img {
    width: 100%;
}