body {
    background: linear-gradient(-141deg, #EBEBEB 0%, #DCDDDF 48%, #C4C5C7 99%);
}

div {
    text-align: center;
    justify-content: center;
    align-items: center;
}

ul li {
    list-style: none;
}

#btn, #cart, #products, #clientInfo {
    text-align: center;
}

#credits {
    text-align: center;
    font-family: Cambria, Cochin, Georgia, Times, 'Times New Roman', serif;
    font-size: small;
    color: black;
    font-style: italic;
}

#nav_bar_block {
    overflow: hidden;
    text-align: center;
}

.nav_bar img {
    float: left;
    width: max-content;
    height: max-content;
    border: none;
}

.nav_bar button {
    background-color: inherit;
    text-align: center;
    border: none;
    cursor: pointer;
    padding: 16px 16px;
    margin-left: 5px;
    margin-right: 5px;
}

.nav_bar button:hover {
    border: 3px aliceblue;
    background-color: antiquewhite;
}

#index_title {
    text-align: center;
    font-style: oblique;
    font-family: "Microsoft YaHei UI";
    color: coral;
}