.header {
  height: 110px;
  width: 100%; /** Use 100% to fill the width of the page **/
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  margin: 0 auto;
  background-color: white;
  text-align: center;
  display: none;
  z-index: 1;
  box-shadow: 0 0 20px 0 rgba(0, 0, 0, 0.2), 0 5px 5px 0 rgba(0, 0, 0, 0.24);
  flex-flow: row wrap;
  justify-content: center;
  align-content: center;
  align-items: center;
}

.nav_header {
  margin: auto;
  width: 90%;
  margin-bottom: 10px;
}

.nav_header .switch, .send {

  font-family: "Roboto", sans-serif;
  text-transform: uppercase;
  outline: 0;
  border: 0;
  padding: 15px;
  color: #FFFFFF;
  font-size: 14px;
  -webkit-transition: all 0.3 ease;
  transition: all 0.3 ease;
  cursor: pointer;
}

.dot {
  height: 30px;
  width: 30px;
  background-color: #bbb;
  border-radius: 50%;
  display: inline-block;
  margin-top: 10px;
  text-align: center;
}

.mobile-home, .mobile-back, .mobile-next {

  display: none;
}

.desktop-back, .desktop-next {

  display:inline-block;
}

@media screen and (max-width: 640px) {
  .dot {
    
    height: 30px;
    width: 30px;
    background-color: #bbb;
    border-radius: 50%;
    display: none;
    margin-top: 10px;
    text-align: center;
  }

  .glyphicon-list-alt, .glyphicon-send, .desktop-home, .desktop-back, .desktop-next {

    display: none;
  }

  .mobile-home, .mobile-back, .mobile-next {

    display: inline-block;
  }

}

.glyphicon-home {
  margin: auto;
  font-size:1.5em;
}

.glyphicon-list-alt, .glyphicon-send {
  font-size: 2.1em;
}

#left {
  float:left;
  width:50px;
  height: 20px;
}

#center, .center {
  display: inline-block;
  margin: auto;
  height: 20px;
}

#right, #sendButton {
  float:right;
  width:50px;
  height: 20px;
}