body {
    margin: 0;
    padding: 0;
}
img{
    text-align: right;
    vertical-align: middle;
    margin:auto;
    object-fit: contain;
}
.top{
    width: 100%;
    height: 6.25rem;
    background-color:azure;
    margin: 0;
    padding: 0;
}
.topleft {
    width: 15%;
    height: 100%;
    float: left;
    display: flex;
    margin: 0;
    padding: 0;
}
.topleft img{
    max-width: 100%;
    max-height: 100%;
    margin: auto;
}
.topright{
    height: 100%;
    width: 85%;
    float:right;
    display: flex;
    flex-direction: column;
    justify-content: center;
    margin: 0;
    padding: 0;
}
.topright *{
    margin: 0;
    padding: 0;
}
.content{
    width: 100%;
    height: calc(100vh - 8.75rem);
    background-color:white;
    overflow: hidden;
    margin: 0;
    padding: 0;
}
.footer{
    width: 100%;
    height: 2rem;
    background-color:ghostwhite;
    text-align: center;
    clear: both;
    position: fixed;
    bottom: 0;
    padding-top: 0.5rem;
    margin: 0;
    padding-bottom: 0;
}
.left{
    width: 15%;
    height: 100%;
    background-color: #f1f1f1;
    float: left;
    margin: 0;
    padding: 0;
}
.right{
    height: 100%;
    width: 85%;
    float:right;
    margin: 0;
    padding: 0;
}
ul {
    list-style-type: none;
    margin: 0;
    padding: 0;
    width: 100%;
    background-color: #f1f1f1;
}
li a {
    display: block;
    color: #000;
    padding: 0.5rem 1rem;
    text-decoration: none;
    text-align: center;
}
li a:hover {
    background-color: #555;
    color: white;
}
li a.active {
    background-color: #4CAF50;
    color: white;
}