body {
    margin: 0;
    padding: 0;
    width: 100%;
    height: 100%;
    background-color: whitesmoke;
    font-family: Helvetica, Arial, sans-serif;
    box-sizing: content-box;
}

#content {
    width: 95%;
    left: 2.5%;
    background-color: black;
    position: absolute;
    box-shadow: 3px 3px 8px grey;
    border: 1px solid grey;
    background: white;
    background-image: url('http://www.lifecycleinsights.com/wp-content/uploads/2015/04/62237228_thumbnail-715x517.jpg');
    background-repeat: no-repeat;
    background-attachment: fixed;
}

header {
    width: 100%;
    height: 10em;
    text-align: right;
    background: linear-gradient(to right,rgba(255,255,255,0.0) 35%,white 50%);
}

header h1 {
    margin: 0 5% 0 0;
    padding: 0;
    font-family: 'Kavivanar', cursive;
    font-size: 4em;
    font-stretch: ultra-expanded;
    text-shadow: 2px 2px 4px white;

}
header hr {
    width: 40%;
    margin: 0 0 0 55%;
}
header h2 {
    margin: 0 5% 0 0;
    padding: 0;   
}

nav {
    width: 100%;
    height: 3.5em;
    background-color: whitesmoke;
    border-top: 1px solid black;
    border-bottom: 1px solid black;
}
nav ul {
    position: absolute;
    width: 100%;
    left: 0%;
    height: inherit;
    margin: 0;
    padding: 0;
    text-align: center;

}
nav > li {
    margin: 0;
    padding: 0;
    vertical-align: bottom;
    width: 13px;
}
nav a {
    padding: 0.7em;
    color: darkslategray;
    text-decoration: none;
    background: rgba(210,230,245,1);
    border: 1px solid darkgrey;
    border-bottom-right-radius: 5px;
}
nav li.active {
    font-weight: bold;
}
nav a:hover {
    text-decoration: none;
    text-shadow: 0px 0px 4px rgba(255,255,255,1);
}
nav ul li {
    position: relative;
    display: inline;
}

.ul_nav_2nd {
    display: none;
    float: left;
    top: 1.9em;
    width: auto;
    height:auto;
    background-color: rgba(255,255,255,0.8);
    padding: 1em;
    border-radius: 5px;
    z-index: 999;
}

.li_nav_2nd {
    padding: 0.3em 0;
    border-left: 1px solid grey;
    display: block;
    position: relative;
    z-index: 1000;
}

.li_nav_2nd a {
    margin: 0;
    padding: 0.3em 1.4em;
    background: none;
    border: none;
    font-size: medium;
    
}
.li_nav_2nd a:hover {
    font-weight: bold;
    background-color: rgb(210,230,245);
}
nav ul li:hover .ul_nav_2nd{
    display: block;
}

.ebene2:hover:before {
  content: "";
  position: absolute;
  top: 30px;
  left: 50%;
  margin-left: -47px;
  width: 0px;
  height: 0px;
  border-left: 10px solid transparent;
  border-right: 10px solid transparent;
  border-top: 10px solid black;
}

article {
    width: 100%;
    height: auto;
    background-color: transparent;
    
}

section {
    width: 65%;
    height: inherit;
    position: relative;
    float: left;
    background: linear-gradient(to right,rgba(255,255,255,0.5) 18%,white 82%);
    
}

.text {
    margin: 1.5em 1.5em 1.5em 2.5em;
}

h3 {
    margin: 0;
    padding: 0;
    
}

aside {
    width: 35%;
    height: inherit;
    position: relative;
    float: left;
    background-color: azure;
    
}

aside img {
    width: 100%;
}

footer {
    width: 100%;
    height: 3em;
    background: linear-gradient(rgb(210,230,245), rgb(210,230,245));
    display: flex; 
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2em;
}

footer i {
    font-style: normal;
}

footer a {
    padding: 0 1.5em;
    text-decoration: none;
    font-style: normal;
    color: darkslategrey;
}
footer a:hover {
    text-shadow: 0px 0px 3px white;
    text-decoration: underline;
    
}

#temp {
    width: 100%;
    height: 100%;
    position: fixed;
    background-color: rgba(0,0,0,0.3);
    z-index: 10;
}
#temp1 {
    width: auto;
    height: auto;
    position: absolute;
    top: 5%;
    left: auto;
    z-index: 11;
    background-color: rgba(255,255,255,0.9);
    padding: 5em 5em 5em 25em;    
    font-size: large;
    max-height: 25em;
}

#temp1 i{
    position: absolute;
    left: 23em;
}

table {
    border: none;
    background-color: rgba(255,255,255,0.8);
    margin: 1em 1em 1em 0;
    border-collapse: collapse;
    width: 90%;
}

table tr {
    border-collapse: collapse;
    border: none;
}

table th {
    background-color: rgba(0,0,0,0.1);
    
}

table tbody {
    display: none;
}

table th, table td {
    border: none;
    cursor: pointer;
    width: auto;
    text-align: left;
    border-collapse: separate;
    padding: 0.4em;
}
table th:first-child, table td:first-child {
    width: 1em;
}

table td {
    border: none;
}

.dialog {
    position: absolute;
    background-color: rgba(255,255,255,0.7);
    border: 5px solid rgba(210,230,245,0.9);
    display: none;
    padding: 0.5em;
    margin: 0;
    border-radius: 10px;
    width: 300px;
    height: 100px;
    z-index: 100;
}

.dialog:after{
  position: absolute;
  top: 42%;
  height: 0;
  width: 0;
  left: -25px;
  border: 10px solid transparent;
  transform: rotate(270deg);
  border-bottom-color: rgba(210,230,245,0.9);
  content: "";
}
.dialog p {
    margin: 0;
    padding: 0;
}

.subdialog {
    display: none;
}