body::before {
  content: '';
  background-color: #000;
  position: absolute;
  width: 100vw;
  height: 100vh;
  top: 0;
  left: 0;
  z-index: var(--before-zIndex, -1000);
  opacity: 0;
  transition: opcaity 1s;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  box-sizing: border-box;
  padding: 0;
  margin: 0;
  transition: opacity 1s;
}

p {
  padding: 0 40px;
  font-size: 14px;
}

a {
  font-weight: bold;
  color: #00e88f;
  transition: color 0.5s;

  &:hover {
    color: #00945b;
    cursor: pointer;
  }
}

#principal {
  font-size: 40px;
}

#box {
  display: flex;
  flex-direction: row;
  max-width: 600px;
}

#voltar {
  display: flex;
  padding: 0 40px;
  font-size: 14px;
  width: 200px;
  height: 40px;
  align-items: center;
  justify-content: center;
  background-color: #fff;
  border: 2px solid #00e88f;
  color: #333;
  transition: background 0.5s;

  &:hover {
    background-color: #00e88f;
    color: #fff;
    cursor: pointer;
  }
}

#container {
  margin: 30px 30px;
  display: flex;
  flex-direction: column;
  flex-wrap: wrap;
}

#pontilhado {
  transition: all .5s ease-in-out;
}