html {
    font-family: 'Oxygen';
    font-weight: 400;
    overflow-x: hidden;
    font-size: 20px;
    scroll-behavior: smooth;
}

body {
    margin: 0;
}

.body-div {
    background-color: #d98243;
}

header {
    background-color: #535353;
}

#logo {
    display: inline-block;
    float: left;
    height: 60px;
    margin-top: 20px;
    margin-left: 10%;
}

#header-title-div {
    display: inline-block;
    float: left;
    margin-left: 10%;
}

#header-title-div p {
    font-size: 150%;
    font-weight: 700;
    color: #d98243;
    text-align: center;
}

#back {
    display: inline-block;
    margin-top: 20px;
    margin-bottom: 20px;
    margin-left: 10%;
    border: 3px solid #d98243;
    padding: 10px;
    border-radius: 50px;
    font-weight: 700;
    color: #d98243;
    transition: border 0.5s, color 0.5s;
}

#back:hover,
#back:active {
    border-color: #a26233;
    color: #a26233;
}

#back a {
    text-decoration: none;
}

.details {
    display: block;
    background-color: #d98243;
    padding: 20px;
}

.book-img-div {
    display: inline-block;
    height: 100%;
    padding: 10px;
    float: left;
}

.book-img-div img {
    height: 100%;
}

.txt-details {
    display: inline-block;
    height: 100%;
    padding: 20px;
    margin-left: 3%;
    margin-bottom: 100px;
}

.txt-details p {
    margin: 0;
    font-size: 100%;
    color: #3e3e3e;
    font-weight: 700;
}

#rating {
    display: inline-block;
    color: #3e3e3e;
    width: 30px;
    height: 30px;
    text-align: center;
    padding: 6px;
    border: 3px solid #3e3e3e;
    border-radius: 50%;
}

#rating-txt {
    display: inline-block;
    margin-left: 20px;
}

#price,
#author-publisher,
#dimension,
#rating-div,
#delivery {
    width: 90%;
    margin-left: 2.5%;
    margin-top: 10px;
    line-height: 30px;
    border-bottom: 2px solid #3e3e3e;
    padding-bottom: 10px;
}

#price font {
    display: inline-block;
    font-size: 70%;
    margin-left: 10px;
}

#delivery {
    margin-top: 10px;
}

.feedback {
    line-height: 50px;
    margin-top: 30px;
}

.feedback label {
    color: #3e3e3e;
}

.feedback textarea {
    padding: 8px;
    font-family: 'Oxygen';
    font-size: 70%;
    height: 200px;
    width: 95%;
    background-color: #f5cfb4;
    border: 3px solid #a26233;
    color: #3e3e3e;
}

.buy {
    display: inline-block;
    width: 45px;
    background-color: #ff6b00;
    text-align: center;
    padding: 5px;
    border: 5px solid #fff;
    border-radius: 50px;
    transition: transform 0.5s, border 0.5s;
}

.buy:hover,
.buy:active {
    transform: scale(1.2);
    border-color: #cecece;
    color: #cecece;
}

a {
    text-decoration: none;
    color: #fff;
}

/* FOOTER */

footer {
    background-color: #535353;
    color: #d0d0d0;
    text-align: center;
    padding: 30px;
    height: auto;
}

.footer-line {
    display: inline-block;
    width: 90%;
    margin-left: 0;
    margin-top: 10px;
    font-size: 80%;
}

.social {
    display: inline-block;
    width: 260px;
    height: 20px;
    margin: 0 auto;
}

.social ul {
    list-style: none;
    padding: 0;
    margin: 0;
    height: 20px;
}

.social-icon-link {
    display: inline-block;
    color: #d0d0d0;
    width: 20px;
    height: 20px;
    float: left;
    margin-top: 0;
}

#fb {
    margin-right: 100px;
    transition: color 0.5s;
}

#fb:hover,
#fb:active {
    color: #3b5998;
}

#tt {
    transition: color 0.5s;
}

#tt:hover,
#tt:active {
    color: #00acee;
}

#ig {
    margin-left: 100px;
    transition: color 0.5s;
}

#ig:hover,
#ig:active {
    color: #3f729b;
}