body {
    margin: 0;
    overflow:hidden;
}

.content {
    overflow-y:scroll;
    overflow-x:hidden;
    max-height: 89vh;
}

ul#top {
    z-index: 1;
    list-style-type: none;
    margin: 0;
    padding: 0;
    overflow: hidden;
    background-color: #f1f1f1;
    position: fixed;
    top: 0;
    width: 100%;
    margin-left:10%;
    padding:1px 26px;
    height: 50px;
}

ul#unten {
    z-index: 1;
    list-style-type: none;
    margin: 0;
    padding: 0;
    overflow: hidden;
    background-color: #f1f1f1;
    position: fixed;
    bottom: 0;
    width: 100%;
    margin-left:10%;
    padding:1px 16px;
}
  
li#top {
    z-index: 1;
    padding: 5px 16px;
    float: left;
}
img#seitlich {
    border-radius: 30%;
}
ul#seitlich {
    z-index: 1;
    list-style-type: none;
    margin: 0;
    padding: 0;
    width: 10%;
    background-color: #f1f1f1;
    position: fixed;
    height: 100%;
    overflow: auto;
    top: 0;
    left: 0;
}
ul#rechts {
    z-index: 1;
    list-style-type: none;
    margin: 0;
    padding: 0;
    width: 10%;
    background-color: #f1f1f1;
    position: fixed;
    height: 100%;
    overflow: auto;
    top: 0;
    right: 0;
}

li a {
    z-index: 1;
    display: block;
    color: #000;
    padding: 8px 16px;
    text-decoration: none;
}

li a.active {
    z-index: 1;
    background-color: #4CAF50;
    color: white;
}


li a:hover:not(.active) {
    z-index: 1;
    background-color: #555;
    color: white;
}

div#body {
    margin-left:10%;
    margin-top:50px;
    margin-bottom:80px;
    padding:1px 16px;
}

input#Einloggen {
    width: 250px;
    box-sizing: border-box;
    border: 3px solid #c0c0c0;
    border-radius: 50px;
    font-size: 16px;
    padding: 12px 20px 12px 20px;
    -webkit-transition: width 0.6s ease-in-out;
    transition: width 0.6s ease-in-out;
}

input#Einloggen:focus {
    width: 100%;
    border-radius: 0px;
}
textarea#Einloggen {
    width: 250px;
    box-sizing: border-box;
    border: 3px solid #c0c0c0;
    border-radius: 50px;
    font-size: 16px;
    padding: 12px 20px 12px 20px;
    -webkit-transition: width 0.6s ease-in-out;
    transition: width 0.6s ease-in-out;
}

textarea#Einloggen:focus {
    width: 100%;
    border-radius: 0px;
}

button[type=submit] {
    width: 100%;
    background-color: #4CAF50;
    color: white;
    padding: 12px 20px;
    margin: 8px 0;
    border: none;
    border-radius: 4px;
    cursor: pointer;
}
button[type=submit]:hover {
    background-color: #45a049;
    font-size: 20px;
}


div.tab {
    overflow: hidden;
    border: 1px solid #ccc;
    background-color: #f1f1f1;
}

div.tab button {
    background-color: inherit;
    float: left;
    border: none;
    outline: none;
    cursor: pointer;
    padding: 14px 16px;
    transition: 0.3s;
    font-size: 17px;
}

div.tab button:hover {
    background-color: #ddd;
}

div.tab button.active {
    background-color: #ccc;
}

.tabcontent {
    display: none;
    padding: 6px 12px;
    border: 1px solid #ccc;
    border-top: none;
}

.topright {
    float: right;
    cursor: pointer;
    font-size: 20px;
}

.topright:hover {color: red;}





input#KR, select {
    width: 100%;
    padding: 12px 20px;
    margin: 8px 0;
    display: inline-block;
    border: 1px solid #ccc;
    border-radius: 4px;
    box-sizing: border-box;
}
input#KRButton {
    width: 100%;
    background-color: #4CAF50;
    color: white;
    padding: 12px 20px;
    margin: 8px 0;
    border: none;
    border-radius: 4px;
    cursor: pointer;
}
input#KRButton:hover {
    background-color: #45a049;
    font-size: 20px;
}