body {
  font-family: Arial, sans-serif;
  margin: 0;
  background: white;
  color: black;
  font-size: 1rem;
  line-height: 1.5;
}


header {
  background: lightblue;
  color: black;
  padding: 1vh 2vw;
  text-align: center;
}


a {
  margin: 0 1vw;
  color: black;
  font-size: 1rem;
}

main {
  padding: 2vh 2vw;
}

button {
  padding: 1vh 2vw;
  background-color: lightblue;
  color: black;
  border: none;
  font-size: 1rem;
}

#postsContainer {
  margin-top: 2vh;
}
.post {
  background-color: white;
  border: 0.1rem solid gray;
  margin: 1vh 0;
  padding: 1vh 1vw;
}

.error {
  color: red;
  margin-top: 1vh;
  font-size: 1rem;
}