/* ========================= [ .main ] */
.main {
  height: auto;
  background: url(main_bg.jpg) no-repeat center top;
}

/* ===== .head */
.main .head {
  
}

.main .head .main_slogan img {
  position: relative;
}

.btn {
  margin-bottom: 100px;
}

.main .head .cv_area {
  width: 800px;
}

.main .head .cv_area ul {
  display: flex;
}

.main .head .cv_area .btn {
  transition: 0.5s;
}

.main .head .cv_area .btn:hover {
  filter: brightness(1.2);
}