.site-header1 {
    background-color: black;
}
.menu {
    max-width: 540px;
}
.menu a {
    color: floralwhite;
}
.black {
    background-color: black;
    color: floralwhite;
}
.footer {
    text-align: center;
    line-height: 100px;
}

.margin1 {
    margin-bottom: 2em;
}
.margin05 {
    margin-bottom: 0.5em;
    font-weight: bold;
    font-family: Microsoft YaHei;
}

.company-info {
    position: absolute;
    left: 320px;
    bottom: 597px;
    margin-bottom: 9rem;
}
.company-words {
    position: absolute;
    left: 130px;
    bottom: 530px;
}

.about-info {
    position: absolute;
    left: 900px;
    bottom: 470px;
    margin-bottom: 9rem;
}
.about-words {
    position: absolute;
    left: 830px;
    bottom: 530px;
}

.factory-img1 {
    margin-top: 20px;
}
.factory-img1 img{
    width: 256px;
    height: 377px;
}

.factory-img2 {
    margin-top: 20px;
    margin-bottom: 20px;
}
.factory-img2 img{
    width: 256px;
    height: 219px;
}

.card-header {
    cursor: pointer;
}