* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

.title {
  margin-top: 30px;
}

.form-data {
  text-align: center;
  margin-top: 20px;
  display: flex;
  justify-content: center;
  flex-direction: column;
}

h1 {
  text-align: center;
  margin-top: 20px;
}

table {
  margin-top: 15px;
  width: 50vw;
}

td {
  border: 1px solid rgb(221, 221, 221);
  text-align: left;
  font-size: 18px;
  height: 5vh;
}

tr:nth-child(even) {
  background-color: rgb(221, 221, 221);
}

.btn-1 {
  text-align: right;
  margin-right: 5px;
}

.remove {
  text-align: right;
  margin-left: 100px;
  width: 70px;
  padding-right: 30px;
  padding-left: 10px;
  cursor: pointer;
  box-shadow: 4px 7px 4px 0 #000;
}

.btn {
  text-align: right;
  width: 100px;
  padding-right: 40px;
  padding-left: 10px;
  cursor: pointer;
  box-shadow: 4px 7px 4px 0 #000;
  height: 5vh;
}

.text-input {
  height: 5vh;
  padding: 5px;
  margin-top: 5px;
  width: 30%;
}

.btn-container {
  display: flex;
  justify-content: center;
}

.book-list {
  text-align: center;
  margin: 0 auto;
  display: flex;
  justify-content: center;
}

.list-title {
  text-align: center;
  color: darkred;
}

.board {
  border-bottom: 2px solid;
}

hr {
  width: 10%;
  background-color: #000;
}

.main-list {
  display: flex;
  justify-content: center;
}

.form-data h3 {
  margin-bottom: 20px;
}

.horizontal-line {
  display: flex;
  justify-content: center;
  margin-top: 30px;
}

.nav-link {
  display: flex;
  justify-content: space-between;
  border: 2px solid #000;
}

.list-link {
  display: flex;
  justify-content: space-around;
  margin-right: 40px;
}

.list-link li {
  list-style-type: none;
  margin-top: 20px;
  cursor: pointer;
  font-size: 20px;
}

.nav-link a {
  text-decoration: none;
  margin-top: 18px;
  margin-left: 10px;
  cursor: pointer;
  font-size: 25px;
  color: #000;
}

.main-container {
  display: flex;
  justify-content: center;
  flex-direction: column;
  text-align: center;
}

.main-container h2 {
  margin-bottom: 20px;
  margin-top: 20px;
}

.main-container ul {
  margin-bottom: 20px;
  line-height: 1.5rem;
}

.main-container li {
  font-size: 18px;
  text-align: center;
}

footer p {
  margin-top: 300px;
  text-align: left;
  font-size: 20px;
  border: 2px solid #000;
}

.main-container p {
  font-size: 18px;
}

.all {
  display: flex;
  flex-direction: column;
}

.time {
  text-align: right;
  margin-right: 50px;
  margin-top: 20px;
}