body {
  margin: 0;
}
#loading-screen {
  background-color: rgba(25,25,25,0.7);
  height: 100%;
  width: 100%;
  position: fixed;
  z-index: 9999;
  margin-top: 0;
  top: 0;
  text-align: center;
}
#loading-screen img {
  width: 100px;
  height: 100px;
  position: relative;
  margin-top: -50px;
  margin-left: -50px;
  top: 50%;
}

#lista-clientes {
  width: 90%;
  height: 200px;
  border: 1px solid #ffffff;
  position: absolute;
  z-index: 9;
  background: #ffffff;
  list-style: none;
  overflow-x: hidden;
  overflow-y: scroll;
}
#lista-clientes li {
  padding: 2px;
}
#lista-clientes li:hover {
  background: #eaeaea;
  cursor: pointer;
}
#lista-clientes {
  display: none;
}