body {
  background-color: #2b0638;
  background-image: url("images/background/bg.jpg");
  background-size: cover;
  background-attachment: fixed;
  background-repeat: no-repeat;
}

.dropdown {
  position: relative;
}
.dropbtn {
  background-color: rgba(130, 130, 130, 0.7);
  color: white;
  padding: 16px;
  font-size: 16px;
  border: none;
  cursor: pointer;
}
.dropdown-content {
  display: none;
  position: absolute;
  background-color: rgba(130, 130, 130, 0.7);
  min-width: 200px;
  box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2);
}
.dropdown-content a {
  color: black;
  padding: 12px 16px;
  text-decoration: none;
  display: block;
}
.dropdown-content a:hover {
  background-color: rgba(130, 130, 130, 0.8);
}
.dropdown:hover .dropdown-content {
  display: block;
}
.dropdown:hover .dropbtn {
  background-color: rgba(85, 85, 85, 0.9);
}

.main-box {
  position: relative;
  height: 100%;
  width: 40%;
  top: 100%;
  left: 50%;
  transform: translate(-50%, 50%);
  background-color: rgba(130, 130, 130, 0.7);
}

.main-box .projeto{

}