.conteudo{
  display: grid;
  grid-template-columns: 1fr 1fr;
  font-size: 2rem;
  font-weight: 400;
  max-width: 500px;
  margin: 0 auto;
  border: 2px solid black;
  margin-bottom: 50px;
  border-radius: 4px;
}

h4{
  margin: 0px;
  padding: 5px;
  background-color: #6d8d7a;
  color: white;
  font-weight: 600;
}

h4 ,p{
  display: flex;
  justify-content: center;
  border-bottom: 1px solid black;
  grid-row: 1/-1;
  padding-bottom:5px ;
}
.coluna-anos{
  border-right: 1px solid black;
}

.coluna-anos p:nth-child(odd),
.coluna-precos p:nth-child(odd) {
  background-color: #94caa8; 
}

.coluna-anos p,
.coluna-precos p {
  width: 100%;
  box-sizing: border-box;
  margin: 0;
}