.blk {
  display: block;
  margin-bottom: 20px;
}
.extra {
  margin: 25px 0;
}
p {
  width: 75%;
  margin: 0 auto;
  margin-bottom: 15px;
}

hr {
  margin: 0 auto;
  width: 50%;
  margin-bottom: 15px;
  border-top: 3px solid #bbb;
}
.container {
  width: 700px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  /* height: 100vh; */
  margin: 0 auto;
  border: 2px #ccc solid;
  background-color: #f1e8d9;
  border-radius: 15px;
}
body {
  font-family: Arial, sans-serif;
  margin: 2em;
  background-color: #ccc;
}

/* div {
  margin-bottom: 1em;
} */

/* label,
input[type="text"],
input[type="password"], */
/* button {
  margin-right: 1em;
} */

input[type="text"],
input[type="password"] {
  padding: 0.5em;
  border: 1px solid #ccc;
  border-radius: 4px;
  box-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

button {
  padding: 0.5em 1em;
  border: none;
  width: 150px;
  margin-top: 10px;
  margin-bottom: 10px;
  /* margin: 30px; */

  box-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);

  border-radius: 6px;
  background-color: #4caf50;
  color: #ffffff;
  cursor: pointer;
  transition: background-color 0.3s;
}

button:hover {
  background-color: #45a049;
}

h3 {
  border-bottom: 1px solid #ccc;
  padding-bottom: 0.5em;
  margin: 0 auto;
  text-align: center;
}

pre {
  background-color: #d9eaf1;
  /* padding: 1em; */
  border: 1px solid #ccc;
  border-radius: 4px;
  overflow-x: auto;
  margin: 0 auto;
  margin-bottom: 30px;
}

h1 {
  text-align: center;
  margin-bottom: 40px;
}