body {
  width: 100vw;
  margin: 0;
  font-family: sans-serif;
}

img, video {
  max-width: 100%;
  max-height: 90vh;
  display: block;
  margin-left: auto;
  margin-right: auto;
}

iframe {
  width: 100%;
  height: 90vh;
}

a {
  color: #888;
  text-decoration: none;
}

dl { overflow: hidden; }

dt {
  float:left;
  width: 3em;
  height: 2em;
  margin-left: 2em;
  clear:both;
}

dd { float:left; }

nav {
  background: #000;
  color: #fff;
  padding: 0.75em 0 1em 0;
  height: 2.5em;
}

nav #logo {
  display: inline;
  font-size: 2em;
  padding-left: 0.25em;
  padding-top: 0;
  padding-right: 1em;
  height: 1.25em;
  vertical-align: top;
  margin: 0 1vw;
}

nav .current { color: #fff; }

nav a {
  display: inline;
  padding-right: 1em;
  position: relative;
  vertical-align: bottom;
}

nav .fa-bars { display:none; }

nav a:hover { color: #fff; }

@media screen and (max-width: 600px) {
  nav {
    display: inline-block;
    width: 100%;
    height: 100%;
  }
  nav #logo { display: inline; }
  nav .item {
    background: #000;
    display: none;
    padding: 0.1em 0.5em;
  }
  nav .fa-bars {
    float: right;
    display:inline;
    font-size: 2em;
    padding-top: 0.25em;
    padding-right: 0.75em;
  }
}

#image {
  padding-top: 2.5%;
  padding-bottom: 1%;
}

#controller {
  position: fixed;
  left: 0;
  bottom: 2.5%;
  width: 100%;
  text-align: center;
  padding: 0
}

.controller-item {
  display: inline-block;
  cursor: pointer;
  width: 4em;
}

#prev, #next {
  cursor: pointer;
  position: absolute;
  color: lightgrey;
  font-weight: bold;
  font-size: 8em;
  transition: 0.5s ease;
  display: inline-block;
  bottom: 6vh;
}

#prev { left: 1%; }
#next { right: 1%; }
#prev:hover, #next:hover { text-decoration: none; }
#prev:active, #next:active { color: black; }

.post { padding: 1em; }

/* bottom */
.pager { width: 100%; }

.btn {
  white-space: nowrap;
  margin: 0.5em;
  text-decoration: none;
  color: #000;
}

.btn-left {
  margin: 1.5em;
  text-decoration: none;
  color: #000;
  float: left;
  display: inline-block;
}

.btn-right {
  margin: 1.5em;
  text-decoration: none;
  color: #000;
  float: right;
  display: inline-block;
}