* {
  box-sizing: border-box;
}
body {
  font-family: "Microsoft YaHei","宋体","Segoe UI", "Lucida Grande", Helvetica, Arial,sans-serif;
  background: #2ca9e1;
  color: white;
  text-align: center;
}
#footer{
	position:relative;
	font-size: 15px;
	color:#c0c0c0;
}
#main {
  position: relative;
  list-style: none;
  background: #6BBE92;
  font-weight: 400;
  font-size: 0;
  text-transform: uppercase;
  display: inline-block;
  padding: 0;
  margin: 50px auto;
}
#main li {
  font-size: 0.8rem;
  display: inline-block;
  position: relative;
  padding: 15px 20px;
  cursor: pointer;
  z-index: 5;
  min-width: 120px;
}

li {
  margin: 0;
}

.drop {
  overflow: hidden;
  list-style: none;
  position: absolute;
  padding: 0;
  width: 100%;
  left: 0;
  top: 48px;
}
.drop div {
  -webkit-transform: translate(0, -100%);
  -moz-transform: translate(0, -100%);
  -ms-transform: translate(0, -100%);
  transform: translate(0, -100%);
  -webkit-transition: all 0.5s 0.1s;
  -moz-transition: all 0.5s 0.1s;
  -ms-transition: all 0.5s 0.1s;
  transition: all 0.5s 0.1s;
  position: relative;
}
.drop li {
  display: block;
  padding: 0;
  width: 100%;
  background: #3E8760 !important;
}

#marker {
  height: 6px;
  background: #3E8760 !important;
  position: absolute;
  bottom: 0;
  width: 120px;
  z-index: 2;
  -webkit-transition: all 0.35s;
  -moz-transition: all 0.35s;
  -ms-transition: all 0.35s;
  transition: all 0.35s;
}

#main li:nth-child(1):hover ul div {
  -webkit-transform: translate(0, 0);
  -moz-transform: translate(0, 0);
  -ms-transform: translate(0, 0);
  transform: translate(0, 0);
}
#main li:nth-child(1):hover ~ #marker {
  -webkit-transform: translate(0px, 0);
  -moz-transform: translate(0px, 0);
  -ms-transform: translate(0px, 0);
  transform: translate(0px, 0);
}

#main li:nth-child(2):hover ul div {
  -webkit-transform: translate(0, 0);
  -moz-transform: translate(0, 0);
  -ms-transform: translate(0, 0);
  transform: translate(0, 0);
}
#main li:nth-child(2):hover ~ #marker {
  -webkit-transform: translate(120px, 0);
  -moz-transform: translate(120px, 0);
  -ms-transform: translate(120px, 0);
  transform: translate(120px, 0);
}

#main li:nth-child(3):hover ul div {
  -webkit-transform: translate(0, 0);
  -moz-transform: translate(0, 0);
  -ms-transform: translate(0, 0);
  transform: translate(0, 0);
}
#main li:nth-child(3):hover ~ #marker {
  -webkit-transform: translate(240px, 0);
  -moz-transform: translate(240px, 0);
  -ms-transform: translate(240px, 0);
  transform: translate(240px, 0);
}

#main li:nth-child(4):hover ul div {
  -webkit-transform: translate(0, 0);
  -moz-transform: translate(0, 0);
  -ms-transform: translate(0, 0);
  transform: translate(0, 0);
}
#main li:nth-child(4):hover ~ #marker {
  -webkit-transform: translate(360px, 0);
  -moz-transform: translate(360px, 0);
  -ms-transform: translate(360px, 0);
  transform: translate(360px, 0);
}
.htmleaf-container{
    position: absolute;
    top: 30%;
    left: 0;
    right: 0;
    margin: auto;
}
canvas{
  display:block;
  vertical-align:bottom;
}
#preloader{position:fixed;top:0;left:0;width:100%;height:100%;z-index:1000;background: #2ca9e1;}#preloader #preloader-inner{display:block;position:relative;left:50%;top:50%;width:150px;height:150px;margin:-75px 0 0 -75px;border-radius:50%;border:3px solid transparent;border-top-color:#3498db;animation:spin 2s linear infinite}#preloader #preloader-inner:before{content:"";position:absolute;top:5px;left:5px;right:5px;bottom:5px;border-radius:50%;border:3px solid transparent;border-top-color:#e74c3c;animation:spin 3s linear infinite}#preloader #preloader-inner:after{content:"";position:absolute;top:15px;left:15px;right:15px;bottom:15px;border-radius:50%;border:3px solid transparent;border-top-color:#f9c922;animation:spin 1.5s linear infinite}@keyframes spin{0%{transform:rotate(0deg)}to{transform:rotate(1turn)}}