* {
  margin: 0;
  padding: 0;
  font-family: "Poppins", sans-serif;
  box-sizing: border-box;
}

.main_box {
  background-image: url(photo.jpg);
  height: 100vh;
  background-size: cover;
  background-position: center;
}

/* open button */
.btn_one {
  color: white;
  font-size: 30px;
  line-height: 60px;
  position: absolute;
  left: 16px;
  top: 12px;
}

/* sidebar */
.sidebar_menu {
  position: fixed;
  left: -300px;
  height: 100vh;
  width: 300px;
  background: rgba(255, 255, 255, 0.1);
  box-shadow: 0 0 6px rgba(255, 255, 255, 0.5);
  transition: 0.3s linear;
}

/* logo */
.ghi {
  position: absolute;
  left: 40px;
  color: white;
  text-decoration: none;
  font-size: 40px;
  top: 10px;
}

/* close button */
.btn_two {
  color: gray;
  font-size: 25px;
  position: absolute;
  left: 260px;
  top: 10px;
}

/* menu */
.menu {
  color: white;
  position: absolute;
  width: 100%;
  top: 80px;
}

.menu li {
  list-style: none;
  padding: 12px 20px;
}

.menu i {
  margin-right: 10px;
}

.divy {
  color: white;
  text-decoration: none;
}

/* social */
.social_media {
  position: absolute;
  bottom: 40px;
  left: 25%;
}

.mno {
  color: white;
  margin: 0 6px;
  opacity: 0.6;
}

/* hidden checkbox */
#check {
  display: none;
}

/* hover effects */
.divy:hover {
  text-shadow: 0 0 6px white;
}

.btn_one i:hover,
.btn_two i:hover {
  transform: scale(1.2);
  cursor: pointer;
}

.mno:hover {
  opacity: 1;
  transform: scale(1.2);
}

/* toggle sidebar */
#check:checked ~ .sidebar_menu {
  left: 0;
}

#check:checked ~ .btn_one i {
  opacity: 0;
}