body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
  background-color: #007BFF;
  color: #333;
  min-height: 100vh; /* Garante que o corpo ocupe pelo menos a altura da tela */
  display: flex;
  flex-direction: column;

  flex-grow: 1;
  align-items: center;
  justify-content: center;
}

main {
  width: 40vw;
  padding: 3px;
  background-color: #F4F4F4;
}

.main {
  height: 80vh;
  padding: 20px;
  background-color: #F4F4F4;
  
  border-color: #262626;
  border-width: 2;
  border-style: solid;
  
  flex-grow: 1;
}

.header {
  max-width: 100%;
  background-color: #000000;
}

.rainbow-border {
  border: 4px solid;
  border-image: linear-gradient(90deg, red, orange, yellow, green, blue, indigo, violet) 1;
}