*{
    margin: 0;
    padding: 0;
}
img{
    text-align: right;
    vertical-align: middle;
    margin:auto;
    object-fit: contain;
}
.top{
    width: 100%;
    height: 2rem;
    background-color:azure;
    display: flex;
    align-items: center;
    position: fixed;
}
.top img{
    height: inherit;
    width: 2rem;
    padding-left: 0.5rem;
    margin-top: 0.2rem;
    margin-bottom: 0.2rem;
}
.top h{
    float: right;
    display: block;
    width: calc(100% - 2rem);
    text-align: center;
    font-weight: bolder;
    font-size: 1.2rem;
}
.top .top_icon_list{
    display: flex;
}
.message{
    background-color:lavenderblush;
    align-items: center;
    display: grid;
    position: fixed;
    width: 100%;
    height: 1rem;
    top: 2rem;
}
.message marquee{
    font-size: 0.8rem;
}
.link{
    align-items: center;
    width: 100%;
    display: flex;
    position: fixed;
    top: 3rem;
    height: 2rem;
    justify-content: flex-start;
}
.link ul {
    list-style-type: none;
    margin: 0;
    padding: 0;
    background-color: #f1f1f1;
    overflow: auto;
    white-space: nowrap;
    display: flex;
    justify-content: flex-start;
}
.link ul::-webkit-scrollbar {
	display: none;
}
.link ul li{
    display: inline-grid;
    border-left-color: #000;
    border-left-width: 1px;
    border-left-style: ridge;
}
.link li a {
    color: #000;
    text-decoration: none;
    padding: 0.2rem 0.1rem;
    text-align: center;
    font-size: 1rem;
    font-weight: bold;
}
.link li a:hover {
    background-color: #555;
    color: white;
}
.link li a.active {
    background-color: #4CAF50;
    color: white;
}
.content{
    position: relative;
    top:5rem;
    width: 100%;
    height: calc(100vh - 5rem);
    background-color:white;
}
.content iframe{
    height: 100%;
}