body {
  background-color: #ccc;
  font-family: "Microsoft YaHei", sans-serif;
}
body.nav-open .lower-screen {
  -webkit-transform: scale(1, 1);
      -ms-transform: scale(1, 1);
          transform: scale(1, 1);
}
body.nav-open .nav {
  -webkit-transform: translateY(0);
  transform: translateY(0);
}
body.nav-open .nav-toggle {
  box-shadow: none;
}
body.nav-open .nav-toggle:before {
  width: 12000px;
  height: 12000px;
  background-color: rgba(255, 255, 255, 0.9);
  
}
body.nav-open .nav-toggle .icon {
  width: 0;
}
body.nav-open .nav-toggle .icon:before {
  -webkit-transform: translateY(9px) rotate(45deg);
      -ms-transform: translateY(9px) rotate(45deg);
          transform: translateY(9px) rotate(45deg);
}
body.nav-open .nav-toggle .icon:after {
  -webkit-transform: translateY(-9px) rotate(-45deg);
      -ms-transform: translateY(-9px) rotate(-45deg);
          transform: translateY(-9px) rotate(-45deg);
}

.headers{
background:#eaeaea;
width:100%;
height:60px;
position:fixed;
z-index:2;
}

.logo{
left:10px;
top:5px;
position:fixed;
}


.footer{
background:#eaeaea;
width:100%;
height:60px;
position:fixed;
bottom:0;
z-index:1;
}


.screen {
  width: 100%;
  height: 100%;
  display: block;
  padding-top:60px;
  overflow:hidden;
  position: relative;
}

.nav-toggle {
  width: 60px;
  height: 60px;
  z-index: 3;
  border-radius: 50%;
  margin: 0;
  right:10px;
  position: absolute;
  cursor: pointer;
  -webkit-transition-duration: 0.66s;
          transition-duration: 0.66s;
  -webkit-transition-timing-function: swing;
          transition-timing-function: swing;
}
.nav-toggle:before {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  -webkit-transform: translateX(-50%) translateY(-50%);
      -ms-transform: translateX(-50%) translateY(-50%);
          transform: translateX(-50%) translateY(-50%);
  -webkit-transition-duration: 0.66s;
          transition-duration: 0.66s;
  -webkit-transition-timing-function: swing;
          transition-timing-function: swing;
}
.nav-toggle .icon {
  width: 30px;
  height: 4px;
  background-color: #333;
  border-radius: 2px;
  position: absolute;
  top: 28px;
  left: 15px;
  -webkit-transition-duration: 0.5s;
          transition-duration: 0.5s;
  transiting-timing-function: swing;
}
.nav-toggle .icon:before,
.nav-toggle .icon:after {
  width: 30px;
  height: 4px;
  background-color: #333;
  border-radius: 2px;
  content: "";
  position: absolute;
  left: 0;
  -webkit-transition-duration: 0.5s;
          transition-duration: 0.5s;
  -webkit-transition-timing-function: swing;
  transition-timing-function: swing;
}
.nav-toggle .icon:before {
  top: -9px;
}
.nav-toggle .icon:after {
  top: 9px;
}
.lower-screen {
  padding:0;
  overflow-y:scroll;
  height:100%;
}

.lower-screen .titles{text-align:center;padding-top:10px;font-size:30px;}

.lower-screen .titles a:link,.lower-screen .titles a:visited{ text-decoration:none;color:#000;}

.lower-screen .titles2{text-align:center;padding-bottom:10px;font-size:25px;color:#666;}


.card {
  width: 80%;
  margin-left: 5%;
  padding: 5px 20px 0 20px;
  background-color: white;
  border-radius: 5px;
  text-align: left;
  border-bottom: 3px solid rgba(0, 0, 0, 0.12);
  margin-bottom: 20px;
}
.card h2 {
  margin-bottom: 5px;
}
.card p {
  font-size: 14px;
  color: #666666;
  margin-bottom: 20px;
}
.card p a {
  text-decoration: none;
  color: #333;
}



.card .bb2:link {
	font-size: 16px;
	color: #333;
	text-decoration: underline;
}
.card .bb2:visited {
	font-size: 16px;
	color: #333;
	text-decoration:underline;
}

.nav {
  position:absolute;
  top:60px;
  left: 10%;
  width: 70%;
  height: 100%;
  z-index: 9;
  -webkit-transition-duration: 0.66s;
          transition-duration: 0.66s;
  -webkit-transition-timing-function: swing;
          transition-timing-function: swing;
  -webkit-transform: translateY(100%);
          transform: translateY(100%);
}
.nav ul li {
  list-style: none;
}
.nav ul li a {
  display: block;
  padding: 5px 0;
  text-align: center;
  color: #333;
  text-decoration: none;
  font-size: 20px;
  -webkit-transition-duration: 0.25s;
          transition-duration: 0.25s;
}
.nav ul:hover li a {
  opacity: 0.5;
}
.nav ul:hover li:hover a {
  opacity: 1;
}


body { width: 100%; height: 100%;  }
.container { width: 100%; height: 100%; position: absolute; left: 0; top: 0%; }
.container .page { height: 100%; position: relative; color:#fff;text-align:center; }
.container .page h1{padding-top:120px; line-height:50px; display:block}
.container .page0 { background-color: blue; }
.container .page1 { background-color:#93F; }
.container .page2 { background-color:#F90; }
.container .page3 { background-color: green; }
.container .page4 { background-color: tomato; }
.container .page1 img.no1 { position: absolute; left: 10px; top: 50px; -webkit-transition: all 1s ease 0s; }
.container .page1.cur img.no1 { -webkit-transform: rotate(720deg); }
.container .page1 img.no2 { position: absolute; left: 600px; top: 50px; -webkit-transition: all 1s ease 2s; }
.container .page1.cur img.no2 { left: 30px; top: 100px; -webkit-transform: rotate(720deg); }
.xiangxiatishi { position: fixed; bottom: 20px; left: 50%; -webkit-transform: translateX(-50%); -webkit-animation: dong 1s linear 0s infinite alternate; }
@-webkit-keyframes dong {  from {
bottom:20px;
}
to { bottom: 60px; }