body {
  /* Location of the image */
  background-image: url(images/bio_background.jpg);
  
  /* Background image is centered vertically and horizontally at all times */
  background-position: center top;
  
  /* Background image doesn't tile */
  background-repeat: no-repeat;
  
  /* Background image is fixed in the viewport so that it doesn't move when 
     the content's height is greater than the image's height */
  background-attachment: fixed;
  
  /* This is what makes the background image rescale based
     on the container's size */
  background-size: 100%;
  
  /* Set a background color that will be displayed
     while the background image is loading */
  background-color: #464646;
}

#about {
  font-family: 'Roboto Condensed', sans-serif;
  font-size: 15px;
  float: left;
  position: absolute;
  margin: 25px 25px 25px 25px;
  padding: 10px;
  border: 1px solid black;
  top: 50vh;
  left: 0;
  color: #000;
  background-color: #fff;
  opacity: 0.9;
  line-height: 1.2;
}

/* For mobile devices */
@media only screen and (max-width: 797px) {
  body {
    background-image: url(images/bio_background.jpg);
    background-size: cover;
  }
}

@media only screen and (max-width: 375px) {

  #about {
    margin: 10px 10px 10px 10px;
    top: 30vh;
    left: 0;
    right: 0;
  }
}

#header {
  position: absolute;
  top: 0;
  padding: 36px 0;
  left: 0;
  width: 100%;
  z-index: 10;
}
#header .inner {
  max-width: 1200px;
}
#header .navigation {
  float: right;
  color: #fff;
  font-weight: bold;
  line-height: 32px;
  text-transform: uppercase;
}
#header .m_menu {
  position: relative;
  float: right;
  display: none;
  padding: 6px 0;
  height: 14px;
  width: 30px;
}
#header .m_menu:before {
  content: "";
  position: absolute;
  top: 50%;
  left: 0;
  width: 100%;
  height: 14px;
  margin-top: -9px;
  border-top: 2px solid #fff;
  border-bottom: 2px solid #fff;
}
#header .m_menu:after {
  content: "";
  position: absolute;
  top: 50%;
  left: 0;
  width: 100%;
  height: 2px;
  margin-top: -1px;
  background: #fff;
}

#header .m_menu {
  display: block;
  z-index: 2;
  margin-right: 18px;
}
#header .m_menu:before {
  border-color: #fff;
}
#header.fixed .m_menu:before {
  border-color: #111;
}
#header.fixed .m_menu:after {
  background: #111;
}
#header .navigation {
  display: none;
  position: absolute;
  top: 30px;
  right: 20px;
  background: #fff;
  height: 320px;
  opacity: 0.8;
}
#header .navigation ul {
  display: table-cell;
  vertical-align: middle;
  padding: 0 30px;
  text-align: center;
}
#header .navigation li {
  float: none;
  width: auto;
  border-bottom: 1px solid #7f7f7f;
}
#header .navigation a {
  padding: 0 20px;
  font-size: 18px;
  line-height: 60px;
  color: #333333;
  font-weight: 400;
  text-decoration: none;
  font-family: "Roboto", sans-serif;
}

.open_header #header .navigation {
  display: table;
}
.open_header #header.fixed .navigation {
  top: 0;
  right: 0;
}
.open_header #header.fixed .m_menu {
  margin: 0 6px 0 0;
}
.open_header #header .m_menu {
  margin: 3px 25px 0 0;
}
.open_header #header .m_menu:before {
  background: #333333;
  height: 2px;
  border: 0;
  -webkit-transform: rotate(-135deg);
  -moz-transform: rotate(-135deg);
  -o-transform: rotate(-135deg);
  transform: rotate(-135deg);
  margin-top: -1px;
}
.open_header #header .m_menu:after {
  background: #333333;
  -webkit-transform: rotate(135deg);
  -moz-transform: rotate(135deg);
  -o-transform: rotate(135deg);
  transform: rotate(135deg);
}