spy30/public/slideshow/css/styles.css

.bss-slides{
  position: relative;
  display: block; 
  line-height: 0;/*removes the gap if you put a border on the slideshow div*/   
}
figcaption {
  line-height: 1.5; /* restores line-height to the child element*/
}
.bss-slides figure{
  position: absolute;
  top: 0;
  width: 100%;
}
.bss-slides figure:first-child{
  position: relative;
}
.bss-slides figure img{
  opacity: 0;
  transition: opacity 1.2s;
  backface-visibility: hidden;
}
.bss-slides .bss-show{
  z-index: 2;
}
.bss-slides .bss-show img{
  opacity: 1;
  backface-visibility: hidden;
  position: relative; 
}

.bss-slides figcaption{
  position: absolute;
  font-family: sans-serif;
  font-size: .8em;
  bottom: .75em;
  right: .35em;
  padding: .25em;
  color: #fff;
  background: #000;
  background: rgba(0,0,0, .25);
  border-radius: 2px;
  opacity: 0;
  transition: opacity 1.2s;
}
.bss-slides .bss-show figcaption{
  z-index: 3;
  opacity: 1;
}
.bss-slides figcaption a{
  color: #fff;    
}
.bss-next, .bss-prev{
  color: #fff;
  position: absolute;
  background: #000;
  background: rgba(0,0,0, .6);
  top: 50%;
  z-index: 4;
  font-size: 2em;
  margin-top: -1.2em;
  opacity: .3;
  user-select: none;
}
.bss-next:hover, .bss-prev:hover{
  cursor: pointer;
  opacity: 1;
}
.bss-next{
  right: -1px;
  padding: 10px 5px 15px 10px;
  border-top-left-radius: 3px;
  border-bottom-left-radius: 3px;
}
.bss-prev{
  left: 0;
  padding: 10px 10px 15px 5px;
  border-top-right-radius: 3px;
  border-bottom-right-radius: 3px;
}
.bss-fullscreen{
  display: block;
  width: 32px;
  height: 32px;    
  background: rgba(0,0,0,.4) url(../img/arrows-alt_ffffff_64.png); 
  background-size: contain;
  position: absolute;
  top: 5px;
  left: 5px;   
  cursor: pointer;    
  opacity: .3;
} 
.bss-fullscreen:hover{
  opacity: .8;   
}
:-webkit-full-screen .bss-fullscreen{
    background: rgba(0,0,0,.4) url(../img/compress_ffffff_64.png);
    background-size: contain;
}
:-moz-full-screen .bss-fullscreen{
    background: rgba(0,0,0,.4) url(../img/compress_ffffff_64.png);
    background-size: contain;
}
:-ms-fullscreen .bss-fullscreen{
    background: rgba(0,0,0,.4) url(../img/compress_ffffff_64.png);
    background-size: contain;
}
:full-screen .bss-fullscreen{
    background: rgba(0,0,0,.4) url(../img/compress_ffffff_64.png);
    background-size: contain;
}
:fullscreen .bss-fullscreen{
    background: rgba(0,0,0,.4) url(../img/compress_ffffff_64.png);
    background-size: contain;
}