@import url(https://fonts.googleapis.com/css?family=PT+Sans:400,700);
h1{
  font:400 40px 'pt sans',sans-serif;
  text-align:center;
}
.nav a{
  text-decoration:none;
}
.nav{
  height:70px;
  background:#222;
  position:relative;
}
.nav>ul{
  position:relative;
  list-style:none;
  padding:0;
  margin:0;
}
.nav>ul>li>ul{
  position:absolute;
  left:0;
  padding:0;
  margin:0;
  list-style:none;
}
.nav>ul>li:hover>ul li a{
  opacity:1;
  height:50px;
   transition:all .3s linear;
  -o-transition:all .3s linear;
  -moz-transition:all .3s linear;
  -webkit-transition:all .3s linear;
}
.nav>ul>li>ul a{
  display:block;
  color:#222;
  width:250px;
  line-height:50px !important;
  font:700 14px 'pt sans',sans-serif;
  background:#fcffff;
  border-bottom:1px solid #ddd;
  text-align:center;
  padding:0 5px;
   height:0;
  overflow:hidden;
  opacity:0;
    transition:all .3s linear .2s;
  -o-transition:all .3s linear .2s;
  -moz-transition:all .3s linear .2s;
  -webkit-transition:all .3s linear .2s;
}
.nav>ul>li{
  float:left;
  position:relative;
}
.nav>ul>li>a{
  padding:0 20px;
  color:#fff;
  display:block;
  line-height:70px !important;
  font:400 15px 'PT Sans', sans-serif;
  text-transform:uppercase;
  text-decoration:none;
}
.lamp span{
  display:block;
  height:4px;
  background:#ee6666;
  position: relative;
}
.lamp span:after {
  bottom: 100%;
  left: 50%;
  border: solid transparent;
  content: " ";
  height: 0;
  width: 0;
  position: absolute;
  pointer-events: none;
  border-color: rgba(238, 102, 102, 0);
  border-bottom-color: #ee6666;
  border-width: 4px;
  margin-left: -4px;
}
.lamp{
  position:absolute !important;
  height:4px;
  top:66px;
  background:#333;
  transition:all .3s linear;
  -o-transition:all .3s linear;
  -moz-transition:all .3s linear;
  -webkit-transition:all .3s linear;
}
.selected.active>a,.active>a{
  transition:all .3s linear;
  -o-transition:all .3s linear;
  -moz-transition:all .3s linear;
  -webkit-transition:all .3s linear;
  color:#fff;
}
.credit{
  text-align:center;
  margin:20px 0;
}
.blog-link{
color:#fff;
text-decoration:none;
background:#eee;
background-size:40px;
line-height:50px;
display:inline-block;
padding:0 10px;
border-radius:4px;
border-bottom:3px solid #ddd;
color:#333;
font-family:'open sans',sans-serif;
margin:10px;
}
.dgithub{
color:#fff;
text-decoration:none;
background:#eee url('https://lh6.googleusercontent.com/-MOW-T0KLZJI/UyR6EIggYkI/AAAAAAAAEbM/el92Uoxz-aI/s50-no/GitHub-Mark.png') no-repeat;
background-size:40px;
line-height:50px;
display:inline-block;
padding:0 10px 0 50px;
background-position:5px;
border-radius:4px;
border-bottom:3px solid #ddd;
color:#333;
font-family:'open sans',sans-serif;
margin:10px;
}
    body {
  margin: 0;
  font-family: sans-serif;
  background-color: grey;
   }
ul {
  padding: 0;
  width: 100%;
}


.nav ul
{
  list-style:none;
  position:relative;
  float:left;
  margin:0;
  padding:0
}


.nav ul li
{
  position:relative;
  float:left;
  margin:0;
  padding:0
}


.nav ul ul
{
  display:none;
  position:absolute;
  top:100%;
  left:0;
  background:#fff;
  padding:0
}

.nav ul ul li
{
  float:none;
  width:200px
}

.nav ul ul a
{
  line-height:120%;
  padding:10px 15px

}
.nav ul ul a:hover{
background: #2467A6;
    border: 1px solid #0082e7;
}
.nav ul ul ul
{
  top:0;
  left:130%
}

.nav ul li:hover > ul
{
  display:block
}



a:hover {
  background: orange;
}

a:active {
  background: red;
  color: white;
}