* {
    margin: 0;
    padding: 0;
}

img[src=""],
img:not([src]) {
    opacity: 0;
}




header {
    width: 100vw;
    background-color: #FFFFFF;
    position: fixed;
    left: 0;
    top: 0;
    z-index: 8888;
    box-shadow: 0 .2rem .4rem 0 rgba(0, 0, 0, 0.08);
    padding: .8rem 0 0 .8rem;
}
header #enterprise_name {
    font-size: 1.6rem;
    font-weight: bolder;
}
header ul {
    list-style: none;
}
header ul li {
    display: inline-block;
    margin: .5rem;
}
header ul li a {
    text-decoration: none;
    color: #000000;
    font-size: 1rem;
}

#content {
    width: 100vw;
}

footer {
    color: #7e7d7d;
    width: 100%;
    height: 5rem;
    text-align: center;
    line-height: 5rem;
    font-size: 0.5rem;
}

#footer_menus{
    width: 3.5rem;
    height: 3.5rem;
    border-radius: 3.5rem;
    background-color: #ffffff;
    position: fixed;
    right: .8rem;
    bottom: 3rem;
    z-index: 8888;
    box-shadow: 0 0 1rem .2rem rgba(0, 0, 0, 0.08);
}
#footer_menus ul {
    list-style: none;
}
#footer_menus ul li {
    display: inline-block;
    width: 100%;
    height: 100%;
}
#footer_menus ul li a {
    width: 100%;
    height: 100%;
    text-decoration: none;
    display: inline-block;
    color: #000000;
    font-size: 1rem;
    text-align: center;
    line-height: 3.5rem;
}