body{
    background: #000 url(https://images.unsplash.com/photo-1558424774-86401550d687?crop=entropy&cs=srgb&fm=jpg&ixid=MnwxNDU4OXwwfDF8cmFuZG9tfHx8fHx8fHx8MTYzMjM4NDE3NA&ixlib=rb-1.2.1&q=85) no-repeat fixed left 53%;
}

canvas {
  display: block;
  vertical-align: bottom;
}

/* ---- particles.js container ---- */

#zakun-test {
  position: fixed;
  z-index: -1;
  width: 100%;
  height: 100%;
  background-image: url("");
  background-repeat: no-repeat;
  background-size: cover;
  background-position: 50% 50%;
}


/* my tags */
.catListTag ul {
  zoom: 1;
}

.catListTag ul:before, .catListTag ul:after {
  content: '';
  display: table;
}

.catListTag ul:after {
  clear: both;
}

.catListTag ul li {
  position: relative;
  float: left;
  margin: 0 15 8px 0px;
}

.catListTag ul li:active {
  margin-top: 1px;
  margin-bottom: 7px;
}

.catListTag ul li:after {
  content: '';
  z-index: 2;
  position: absolute;
  top: 10px;
  right: -2px;
  width: 5px;
  height: 6px;
  opacity: .95;
  background: #65bb34;
  -webkit-box-shadow: inset 1px 0 #3a6b1e;
  box-shadow: inset 1px 0 #3a6b1e;
}

.catListTag ul a, .catListTag ul span {
  display: block;
  -webkit-box-sizing: border-box;
  -moz-box-sizing: border-box;
  box-sizing: border-box;
}

.catListTag ul a {
  height: 26px;
  line-height: 23px;
  padding: 0 9px 0 8px;
  font-size: 12px;
  color: #555;
  text-decoration: none;
  text-shadow: 0 1px white;
  background: #fafafa;
  border-width: 1px 0 1px 1px;
  border-style: solid;
  border-color: #dadada #d2d2d2 #c5c5c5;
  border-radius: 3px 0 0 3px;
  background-image: -webkit-linear-gradient(top, #fcfcfc, #f0f0f0);
  background-image: -moz-linear-gradient(top, #fcfcfc, #f0f0f0);
  background-image: -o-linear-gradient(top, #fcfcfc, #f0f0f0);
  background-image: linear-gradient(to bottom, #fcfcfc, #f0f0f0);
  -webkit-box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.7), 0 1px 2px rgba(0, 0, 0, 0.05);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.7), 0 1px 2px rgba(0, 0, 0, 0.05);
}

.catListTag ul a:hover span {
  padding: 0 5px 0 5px;
  width:35px;
  max-width: 40px;
  -webkit-box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.15), 1px 1px 2px rgba(0, 0, 0, 0.2);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.15), 1px 1px 2px rgba(0, 0, 0, 0.2);
}

.catListTag ul span {
  position: absolute;
  top: 1px;
  left: 100%;
  z-index: 2;
  overflow: hidden;
  max-width: 0px;
  height: 24px;
  line-height: 21px;
  padding: 0 0 0 2px;
  color:white;
  text-shadow: 0 -1px rgba(0, 0, 0, 0.3);
  border: 1px solid;
  border-radius: 0 2px 2px 0;
  opacity: .95;
  background: #65bb34;
  border-color: #549b2b #4f9329 #4b8b27;
  background-image: -webkit-linear-gradient(top, #71ca3f, #5aa72e);
  background-image: -moz-linear-gradient(top, #71ca3f, #5aa72e);
  background-image: -o-linear-gradient(top, #71ca3f, #5aa72e);
  background-image: linear-gradient(to bottom, #71ca3f, #5aa72e);
  -webkit-transition: 0.3s ease-out;
  -moz-transition: 0.3s ease-out;
  -o-transition: 0.3s ease-out;
  transition: 0.3s ease-out;
  -webkit-transition-property: padding, max-width;
  -moz-transition-property: padding, max-width;
  -o-transition-property: padding, max-width;
  transition-property: padding, max-width;
}

/*文档标题列表*/
#nav-post-wrap{
  float: right;
  width:250px;
  overflow: hidden;
  padding: 5px;
  border: 1px solid #fff;
  background: #000;
}

ul.nav-post-detail li.title-h2{
    list-style-type: none;
    margin-left: 20px;
}
ul.nav-post-detail li.title-h3{
  list-style-type: none;
    margin-left: 40px;
}
ul.nav-post-detail li.title-h4{
  list-style-type: none;
    margin-left: 60px;
}
ul.nav-post-detail li a{
    color:#fff;
    text-decoration: none;
}

/*随笔档案*/
#sidebar_categories ul {
  margin: 0px;
  padding:0px;
  overflow: hidden;
}
#sidebar_categories ul li{
  display: block;
  width:96px;
  float: left;
}

/*back to top*/
.back-to-top{
  position: fixed;
    bottom: 50px;
    right: 10px;
    width: 30px;
    background: yellow;
    text-align: center;
    padding: 5px;
}