.search h1
{
    margin: 1.5rem 0;
    font-size: 2.5rem;
}
.search 
.search h2 a 
input 
{
width: 40%;
padding: 0.5rem 0.5rem;
margin-bottom: 1.5rem;
transition: 300ms;}
input:focus 
{
outline: none;
box-shadow: 10px 10px 10px 10px black;
transform: scale(1.1, 1.1);
}
#book-list
{
    text-align: left;
    width: 90%;
    color: black;
    padding: 1.5rem;
}
#book-list h2
{
margin-bottom: 1.5rem;
color: black;
font-size: 2rem;
text-align: center;
}
#book-list li
{
    padding: 1.2rem 0;
    padding-left: 1rem;
    box-shadow: 3px 3px 10px black;
    border-left: 5px solid black;
    margin: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    transition: 400ms;
    list-style: none;
}
#book-list li:hover
{
    border-left: 5px solid Black;
    transform: translateX(15px);
}
#clear-all 
{
    text-align: center;
    width: 100%;
    background: transparent;
    padding-bottom: 1.5rem;
}
#clear-all span
{
    color: black;
    font-size: 16px;
    font-weight: 400;
}
#clear-all span:hover
{
    color: red;
}
#add-book 
{
    display: flex;
    justify-content: center;
    background-color: #d6d6d6;
    width: 100%;
    border-top: 3px solid Black;
    box-shadow: 3px 3px 10px black;
    padding: 1rem 0;
    text-align: center;
}
#add-book input
{
    padding: 0.6rem 0.5rem;
    transition: 400ms;
}
#add-book input:focus
{
    padding: 0.7rem 0;
    padding-right: 9rem;
    outline: none;
}
.btn
{
    padding: 0.5rem 1.5rem;
    border-radius: 5px;
    background-color: RED;
    margin-right: 1rem;
    color: white;
    cursor: pointer;
    transition: 300ms;
}
.btn:hover
{
    background-color: slateblue;
}
.btn-clear
{
    padding: 0.5rem 2.5rem;
    background-color: #d6d6d6;
    display: inline-block;
}
.btn-clear:hover
{
    background-color: yellow;
    transform: scale(1.1, 1.1);
}
.btn-add
{
    border-radius: 5px;
    padding: 0.5rem 1rem;
    margin-left: .5rem;
    border: none;
    height: 45px;
    background-color: red;
    color: black;
}
.btn-reg
{
    padding: 0.5rem 1.5rem;
    border-radius: 5px;
    background-color: #d6d6d6;
    margin-right: 1rem;
    cursor: pointer;
    transition: 300ms;
}
.btn-reg:hover
{
    background-color: slateblue;
}
.btn-reg a
{
    color: black;
}