.Menu_b .active {
  background-color: rgb(204, 204, 51);
}

.B_box .L_box{
  scroll-behavior: smooth;
  background-color: rgb(204, 204, 51);
  padding: 3% 5%;
  width: 20%;
  height: 70%;
}

.B_box .R_box{
  overflow-y: scroll;
  scroll-behavior: smooth;
  padding: 3% 7%;
  width: 56%;
  height: 70%;
  background-color: rgb(204, 204, 51);
}

.SP_N{
  fontWeight: normal;
}

#poster{
  width: 40%;
}

#des{
  font-family: "verdana";
  font-size: 10px;
}

.title{
  background-color: rgb(204, 204, 51)
}