* {
  font-family: 'Poppins', sans-serif;
}

header {
  width: 100vw;
}

ul {
  list-style: none;
}

body {
  display: flex;
  flex-direction: column;
  align-items: center;
  height: 100vh;
}

main {
  flex-grow: 1;
  overflow: scroll;
}

#add-list {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  padding: 0;
}

#add-list li {
  margin-top: 10px;
}

#book-list {
  border-color: black;
  border: 2px;
  border-style: solid;
  width: 90%;
  padding: 0;
}

#book-list li {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

#book-list li button {
  width: auto;
  font-size: 14px;
  height: 2rem;
  margin: 5px 15px;
  margin-left: auto;
  box-shadow: 4px 4px;
}

footer p {
  height: auto;
  margin-bottom: 0;
}

#contact-info-section p {
  margin: 5vw;
}

#book-list li p {
  margin: 5px;
}

.add-book-hr {
  width: 90px;
  border: 1px solid black !important;
  opacity: 1;
}

#add-list li input {
  border: 2px solid black;
}

#add-button {
  box-shadow: 4px 4px;
}

section {
  width: 100vw;
  display: flex;
  flex-direction: column;
  align-items: center;
}

#menu-list {
  display: flex;
  width: 98%;
  padding: 10px;
  border: 2px solid black;
  gap: 10px;
  margin: 4px;
}

#menu-list li:first-child {
  margin-right: auto;
  font-size: 82%;
}

#book-list li:nth-child(odd) {
  background-color: rgb(211, 211, 211);
}

#menu-list a {
  text-decoration: none;
  color: black;
  font-size: 12px;
}

.first-two {
  border-right: 2px solid black;
  padding: 7px;
}

footer {
  width: 98vw;
  border: 2px solid black;
  padding: 10px;
  margin: 9px;
  justify-self: end;
}

.hidden {
  display: none;
}

.date-and-time {
  float: right;
  margin-right: 2vw;
}