* {
  box-sizing: border-box;
}

.e-post:before {
  content: attr(prefix) "@"; 
}
.e-post:after {
  content: attr(middle) ".de"; 
}

html {
  font-family: "Lucida Sans", sans-serif;
  background-color: whitesmoke;
}

body {
  margin: 0px;
}

h2 {
  color: firebrick;
}

/* Header/logo Title */
.header {
  display: flex;
  flex-direction: column;
  color: midnightblue;
}
.sitetitle {
  font-size: 35px;
  margin-bottom: 0px;
}

.sitedash {
  width: 95%;
  height: 2px;
  background-color: firebrick;
  box-shadow: 3px 3px 5px black, 3px 3px 5px black;
  margin-bottom: 15px;
}

/* Style the side navigation bar on the left */
.navbar_left {
  display: flex;
  flex-direction: column;
  position: static;
  margin-left: 2px;
  width: 97%;
}
.navbar_left a {
  color: white;
  padding: 10px;
  padding-left: 5px;
  text-decoration: none;
  text-align: left;
  background-color: grey;
  margin-bottom: 7px;
  box-shadow: 3px 3px 5px black, 3px 3px 5px black;
}
.navbar_left a.active {
  background-color: midnightblue;
  color: white;
}
.navbar_left a:hover:not(.active) {
  background-color: midnightblue;
  color: white;
}

/* Main content container */
.row {  
  display: flex;
  flex-direction: column;
}

/*Dummy placeholder left*/
.dummy_left {
  padding: 0px;
  visibility: hidden;
}

/* Main column */
.content_main {
  padding: 10px;
}

.image_frame {
  padding: 10px;
  margin-bottom: 40px;
  text-align: center;
}

/* Fake image, just for this example */
.fakeimg {
  max-width: 100%;
  padding: 10px;
  text-align: center;
}

/* Footer */
.footer {
  display: flex;
  justify-content: space-around;
  position: fixed;
  left: 0;
  bottom: 0;
  width: 100%;
  background-color: grey;
  color: white;
  font-size: small;
}
.footer_element {
  text-align: center;
  padding: 3px;
  margin-top: 0px;
  margin-bottom: 0px;
}
.footer_image {
  height: 30px;
}

/*medium screen*/
@media all and (min-width: 600px) {
  .row {
    flex-direction: row;
    flex-flow: row wrap;
	justify-content: space-around;
	align-content: center;
  }
  .header_main {
    flex: 80%;
	padding-left: 10px;
  }
  .navbar_left {
    position: fixed;
    z-index: 1;
    top: 80px;
    left: 5px;
    width: 18%;
    margin-left: 0px;
    min-width: 110px;
  }
  .dummy_left {
    flex: 20%;
    visibility: visible;
  }
  .content_main {
    flex: 80%;
  }
  .header {
    flex-direction: row;
  }
  h1.sitetitle {
    font-size: 42px;
  }
  .sitedash {
    height: 3px;
  }
}
/*large screen*/
@media all and (min-width: 800px) {
  .row {
    flex-direction: row;
    flex-flow: row nowrap;
	align-content: center;
  }
  .content_main {
    flex: 55%;
	margin-bottom: 40px;
  }
  .image_frame {
    flex: 25%;
  }
  .side_image {
    max-width: 100%;
    height: auto;
  }
  h1.sitetitle {
    font-size: 55px;
  }
  .sitedash {
    height: 4px;
  }
}