header{
  position: relative;
  background: rgba(0,0,0,.75);
  color: white;
  }
.showpic{

position:relative;
margin: 0 auto;
width: 100%;
max-height:750px;
 border: 10px solid white;
  -webkit-box-shadow: 7px 10px 20px 0px rgba(209,209,209,0.77);
  -moz-box-shadow: 7px 10px 20px 0px rgba(209,209,209,0.77);
  box-shadow: 7px 10px 20px 0px rgba(209,209,209,0.77); 
  }

  .showpic img{
  width:auto;
  max-width: 100%;
  max-height:730px;
  height:auto;
  display: block;
  margin:0 auto;

}

.buttonfield{
position: absolute;
width: 100%; 
top: 89%;
    font-family: 'hol_icons';
 } 

 @media screen and (max-width: 1024px){
  .buttonfield{
    top:75%;
 }
}

@media screen and (max-width: 480px){
  .buttonfield{
    top:65%;
 }
}
 
.butprev, .butnext{
  position: relative;
  border-radius: 50%;
  color: rgba(255,255,255,0.8);
  background-color:rgba(20,66,115,0.7);
  border: none;
  text-align: center;
  padding: 10px;
  transition: all 0.5s;
  cursor: pointer;
  margin: 5px;
  font-size: 2.5em;
-webkit-box-shadow: 10px 11px 16px -10px rgba(0,0,0,0.52);
-moz-box-shadow: 10px 11px 16px -10px rgba(0,0,0,0.52);
box-shadow: 10px 11px 16px -10px rgba(0,0,0,0.52);
}

.butprev:hover, .butnext:hover{
  background-color:#008CBA;
  color: white;
}

.butnext{
  position: relative;
  float:right;

}
.butprev{
  float:left;
}

.disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.disabled span {
  opacity: 0;
  color: #f4511e;
}
.bss-slides{
  position: relative;
  width: 100%;
  top: 0px;
  border-style: solid;
  border-width: 0px;
  border-color: rgba(0,0,0, .4); 
}
.bss-slides:focus{
 outline: 0;
}
.bss-slides figure{
  position: absolute;
  top: 0;
  height: 100%;
  width: 100%;
}
.bss-slides figure:first-child{
  position: relative;
}
.bss-slides figure img{
  opacity: 0;
  width: auto;
  max-width: 100%;
  height: auto;
  max-height: 100%;
  -webkit-transition: opacity 1.2s;
  transition: opacity 1.2s;
  -webkit-backface-visibility: hidden;
  backface-visibility: hidden;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
}
.bss-slides .bss-show{
  z-index: 2;
}
.bss-slides .bss-show img{
  opacity: 1;
  -webkit-backface-visibility: hidden;
  backface-visibility: hidden;
  position: relative; 
}

.bss-next-pg, .bss-prev-pg{
   color: rgba(255,255,255,0.8);
  background-color:rgba(20,66,115,0.7);
  border-radius: 50%;
  text-align: center;
  padding: 10px;
  transition: all 0.5s;
  cursor: pointer;
  margin: 3vw;
  font-size: 3em;
-webkit-box-shadow: 10px 11px 16px -10px rgba(0,0,0,0.52);
-moz-box-shadow: 10px 11px 16px -10px rgba(0,0,0,0.52);
box-shadow: 10px 11px 16px -10px rgba(0,0,0,0.52);
  position: absolute;
  top: 45%;
  z-index: 5;
  margin-top: 0em;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
}

@media screen and (min-width: 1000px){
.bss-next-pg, .bss-prev-pg{
margin: 30px;
  }
}


@media screen and (max-width: 768px){
  .bss-next-pg, .bss-prev-pg{
    font-size: 5vw;
     padding: 0px 0.48em 0.2em 0.48em !important;
  
  }
}


.bss-next-pg:hover, .bss-prev-pg:hover{
  cursor: pointer;
}
.bss-next-pg{
  right: -2.5%;
  padding: 0px 22px 9px 22px;
}
.bss-prev-pg{
  left: -2.5%;
  padding: 0px 22px 9px 22px;  
}
div.folder{
  background-color: white;
  position: relative;
  width: 100%;
  height: auto;
  margin: 0px auto;
  padding: 0 8%; 
  border: 10px solid white;
  -webkit-box-shadow: 7px 10px 20px 0px rgba(209,209,209,0.77);
  -moz-box-shadow: 7px 10px 20px 0px rgba(209,209,209,0.77);
  box-shadow: 7px 10px 20px 0px rgba(209,209,209,0.77);
  
}
.thumbnail_frame{
   box-sizing: border-box;
   text-align: center;
  float:left;
  overflow:visible;
  width: 33%;
  height:18vw;
  max-height: 225px;
  padding: 3px;
  
     z-index: 3;
 }

 .helper {
    display: inline-block;
    height: 100%;
    vertical-align: middle;
}

div.folder img{
  
  max-width: 100%;
  max-height: 100%;
  vertical-align: middle;
  margin: 0 auto;
  outline-style:solid;
  outline-width: 2px;
  outline-color:transparent;
  -webkit-transition-duration: 0.2s; /* Safari */
    transition-duration: 0.2s;
     z-index: 3;
}
div.folder div img:hover{
  cursor: pointer;
  outline-color:#008CBA;
  outline-offset: 0px;
}
.fullscreen-button{
  display: block;
  width: 2em;
  height: 2em;
  background-image: url("arrow/alt.png"); 
  background-repeat: no-repeat;
  background-size: contain;   
  position: absolute;
  top: 5px;
  left: 5px; 
  color: white;   
    transition: opacity 1.2s;  
  opacity: 1;
  z-index: 5;
} 
.fullscreen-button:hover{
  opacity: .7;   
    transition: opacity 1.2s; 
  cursor: pointer; 
}
:-webkit-full-screen .fullscreen-button{
    background: rgba(0,0,0,.4) url("arrow/compress.png");
    -webkit-background-size: contain;
    background-size: contain;
}
:-moz-full-screen .fullscreen-button{
    background: rgba(0,0,0,.4) url("arrow/compress.png");
    background-size: contain;
}
:-ms-fullscreen .fullscreen-button{
    background: rgba(0,0,0,.4) url("arrow/compress.png");
    background-size: contain;
}
:full-screen .fullscreen-button{
    background: rgba(0,0,0,.4) url("arrow/compress.png");
    -webkit-background-size: contain;
    background-size: contain;
}


#fullscreen:-webkit-full-screen .showpic {   max-height:90% !important; border:none; top:0px; -webkit-box-shadow: 0px 0px 0px 0px rgba(209,209,209,0.77);
  -moz-box-shadow: 0px 0px 00px 0px rgba(209,209,209,0.77);
  box-shadow: 0px 00px 0px 0px rgba(209,209,209,0.77); } 
  #fullscreen:-webkit-full-screen .showpic img{ max-height: 100vh; }
#fullscreen:-moz-full-screen .showpic {   max-height:90% !important; border:none; top:0px;-webkit-box-shadow: 0px 0px 0px 0px rgba(209,209,209,0.77);
  -moz-box-shadow: 0px 0px 00px 0px rgba(209,209,209,0.77);
  box-shadow: 0px 00px 0px 0px rgba(209,209,209,0.77); } } 
#fullscreen:-ms-fullscreen .showpic {   max-height:90% !important; border:none; top:0px;-webkit-box-shadow: 0px 0px 0px 0px rgba(209,209,209,0.77);
  -moz-box-shadow: 0px 0px 00px 0px rgba(209,209,209,0.77);
  box-shadow: 0px 00px 0px 0px rgba(209,209,209,0.77); } } 
#fullscreen:fullscreen .showpic {   max-height:90% !important; border:none; top:0px;-webkit-box-shadow: 0px 0px 0px 0px rgba(209,209,209,0.77);
  -moz-box-shadow: 0px 0px 00px 0px rgba(209,209,209,0.77);
  box-shadow: 0px 00px 0px 0px rgba(209,209,209,0.77); } } 


#fullscreen:-webkit-full-screen .showpic #myImage {   max-height:100vh !important; max-width: 100%} 
#fullscreen:-moz-full-screen .showpic  #myImage{   max-height:100vh !important;max-width: 100%} 
#fullscreen:-ms-fullscreen .showpic  #myImage{   max-height:100vh !important;max-width: 100%} 
#fullscreen:fullscreen .showpic #myImage {   max-height:100vh !important;max-width: 100%}