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

body {
  background-color: #eeeeee;
}

h1 {
  text-align: center;
}

main {
  width: 60%;
  border-radius: 15px;
  background-color: white;
  margin: auto;
  padding: 20px
}

i {
  cursor: pointer;
  font-size: 1.5em;
  margin-left: 5px;
}

#errorDiv {
  width: 60%;
  padding: 5px;
  margin: 10px auto;
  border-radius: 5px;
  opacity: 0;
}

.transition {
  -webkit-transition: opacity 0.25s ease-in-out;
  -moz-transition: opacity 0.25s ease-in-out;
  -ms-transition: opacity 0.25s ease-in-out;
  -o-transition: opacity 0.25s ease-in-out;
  transition: opacity 0.25s ease-in-out;
}

#errorText {
  text-align: center;
  margin: 0;
}

#displayActiveKey {
  margin-left: 5px;
}

#addBookDiv {
  opacity: 0;
  display: inline-block;
}

.float-right {
  float: right;
}

@media only screen and (max-width: 600px) {
    main {
        width: 100%;
    }
}

@media only screen and (max-width: 900px) {
    main {
        width: 90%;
    }
}