html,
body {
  margin: 0px;
}
header,
footer {
  margin: 0 auto;
  padding: 5em 3em;
  text-align: center;
  background: #555;
}
header h1 {
  color: #AAA;
  font-size: 40px;
  font-weight: lighter;
  margin-bottom: 5px;
}
header span {
  color: #222;
}
footer span {
  color: #AAA;
}
div.container {
  margin: 0 auto;
  padding: 10em 3em;
  text-align: center;
}
div.container a {
  color: #FFF;
  text-decoration: none;
  margin: 0px 10px;
  padding: 10px 10px;
  position: relative;

  cursor: pointer;
}
.red {
  background: #f44336;
}
.purple {
  background: #673ab7;
}
.indigo {
  background: #3f51b5;
}
.blue {
  background: #2196f3;
}
.cyan {
  background: #00bcd4;
}
.teal {
  background: #009688;
}
.green {
  background: #4caf50;
}
.lightGreen {
  background: #8bc34a;
}
.lime {
  background: #c0ca33;
}
.yellow {
  background: #fdd835;
}
.amber {
  background: #ffc107;
}
.orange {
  background: #ff9800;
}
.deepOrange {
  background: #ff5722;
}
.brown {
  background: #795548;
}
.gray {
  background: #9e9e9e;
}
/* Top and Bottom borders go out */
div.topBotomBordersOut a:before,
div.topBotomBordersOut a:after {
  position: absolute;
  left: 0px;
  width: 100%;
  height: 2px;
  background: #FFF;
  content: "";
  opacity: 0;
  transition: all 0.3s;
}
div.topBotomBordersOut a:before {
  top: 0px;
  transform: translateY(10px);
}
div.topBotomBordersOut a:after {
  bottom: 0px;
  transform: translateY(-10px);
}
div.topBotomBordersOut a:hover:before,
div.topBotomBordersOut a:hover:after {
  opacity: 1;
  transform: translateY(0px);
}
/* Top and Bottom borders come in */
div.topBotomBordersIn a:before,
div.topBotomBordersIn a:after {
  position: absolute;
  left: 0px;
  width: 100%;
  height: 2px;
  background: #FFF;
  content: "";
  opacity: 0;
  transition: all 0.3s;
}
div.topBotomBordersIn a:before {
  top: 0px;
  transform: translateY(-10px);
}
div.topBotomBordersIn a:after {
  bottom: 0px;
  transform: translateY(10px);
}
div.topBotomBordersIn a:hover:before,
div.topBotomBordersIn a:hover:after {
  opacity: 1;
  transform: translateY(0px);
}
/* Top border go down and Left border appears */
div.topLeftBorders a:before {
  position: absolute;
  top: 0px;
  left: 0px;
  width: 2px;
  height: 0px;
  background: #FFF;
  content: "";
  opacity: 1;
  transition: all 0.3s;
}
div.topLeftBorders a:after {
  position: absolute;
  top: 0px;
  left: 0px;
  width: 100%;
  height: 2px;
  background: #FFF;
  content: "";
  opacity: 1;
  transition: all 0.3s;
}
div.topLeftBorders a:hover:before {
  height: 100%;
}
div.topLeftBorders a:hover:after {
  opacity: 0;
  top: 100%;
}
/* Circle behind */
div.circleBehind a:before,
div.circleBehind a:after {
  position: absolute;
  top: 22px;
  left: 50%;
  width: 50px;
  height: 50px;
  border: 4px solid #0277bd;
  transform: translateX(-50%) translateY(-50%) scale(0.8);
  border-radius: 50%;
  background: transparent;
  content: "";
  opacity: 0;
  transition: all 0.3s;
  z-index: -1;
}
div.circleBehind a:after {
  border-width: 2px;
  transition: all 0.4s;
}
div.circleBehind a:hover:before {
  opacity: 1;
  transform: translateX(-50%) translateY(-50%) scale(1);
}
div.circleBehind a:hover:after {
  opacity: 1;
  transform: translateX(-50%) translateY(-50%) scale(1.3);
}
/* Brackets go out */
div.brackets a:before,
div.brackets a:after {
  position: absolute;
  opacity: 0;
  font-size: 35px;
  top: 0px;
  transition: all 0.3s;
}
div.brackets a:before {
  content: '(';
  left: 0px;
  transform: translateX(10px);
}
div.brackets a:after {
  content: ')';
  right: 0px;
  transform: translateX(-10px);
}
div.brackets a:hover:before,
div.brackets a:hover:after {
  opacity: 1;
  transform: translateX(0px);
}
/* Border from Y to X  */
div.borderYtoX a:before,
div.borderYtoX a:after {
  position: absolute;
  opacity: 0.5;
  height: 100%;
  width: 2px;
  content: '';
  background: #FFF;
  transition: all 0.3s;
}
div.borderYtoX a:before {
  left: 0px;
  top: 0px;
}
div.borderYtoX a:after {
  right: 0px;
  bottom: 0px;
}
div.borderYtoX a:hover:before,
div.borderYtoX a:hover:after {
  opacity: 1;
  height: 2px;
  width: 100%;
}
/* Border X get width  */
div.borderXwidth a:before,
div.borderXwidth a:after {
  position: absolute;
  opacity: 0;
  width: 0%;
  height: 2px;
  content: '';
  background: #FFF;
  transition: all 0.3s;
}
div.borderXwidth a:before {
  left: 0px;
  top: 0px;
}
div.borderXwidth a:after {
  right: 0px;
  bottom: 0px;
}
div.borderXwidth a:hover:before,
div.borderXwidth a:hover:after {
  opacity: 1;
  width: 100%;
}
/* Pull down  */
div.pullDown a:before {
  position: absolute;
  width: 100%;
  height: 2px;
  left: 0px;
  top: 0px;
  content: '';
  background: #FFF;
  opacity: 0.3;
  transition: all 0.3s;
}
div.pullDown a:hover:before {
  height: 100%;
}
/* Pull up  */
div.pullUp a:before {
  position: absolute;
  width: 100%;
  height: 2px;
  left: 0px;
  bottom: 0px;
  content: '';
  background: #FFF;
  opacity: 0.3;
  transition: all 0.3s;
}
div.pullUp a:hover:before {
  height: 100%;
}
/* Pull right  */
div.pullRight a:before {
  position: absolute;
  width: 2px;
  height: 100%;
  left: 0px;
  top: 0px;
  content: '';
  background: #FFF;
  opacity: 0.3;
  transition: all 0.3s;
}
div.pullRight a:hover:before {
  width: 100%;
}
/* Pull left  */
div.pullLeft a:before {
  position: absolute;
  width: 2px;
  height: 100%;
  right: 0px;
  top: 0px;
  content: '';
  background: #FFF;
  opacity: 0.3;
  transition: all 0.3s;
}
div.pullLeft a:hover:before {
  width: 100%;
}
/* Pull up and down  */
div.pullUpDown a:before,
div.pullUpDown a:after {
  position: absolute;
  width: 100%;
  height: 2px;
  left: 0px;
  content: '';
  background: #FFF;
  opacity: 0.3;
  transition: all 0.3s;
}
div.pullUpDown a:before {
  top: 0px;
}
div.pullUpDown a:after {
  bottom: 0px;
}
div.pullUpDown a:hover:before,
div.pullUpDown a:hover:after {
  height: 100%;
}
/* Pull right and left  */
div.pullRightLeft a:before,
div.pullRightLeft a:after {
  position: absolute;
  width: 2px;
  height: 100%;
  top: 0px;
  content: '';
  background: #FFF;
  opacity: 0.3;
  transition: all 0.3s;
}
div.pullRightLeft a:before {
  left: 0px;
}
div.pullRightLeft a:after {
  right: 0px;
}
div.pullRightLeft a:hover:before,
div.pullRightLeft a:hover:after {
  width: 100%;
}
/* Highlight text out  */
div.highlightTextOut a {
  color: rgba(255, 255, 255, 0.3);
}
div.highlightTextOut a:before,
div.highlightTextIn a:before {
  position: absolute;
  color: #FFF;
  top: 0px;
  left: 0px;
  padding: 10px;
  overflow: hidden;
  content: attr(alt);
  transition: all 0.3s;
  transform: scale(0.8);
  opacity: 0;
}
div.highlightTextOut a:hover:before,
div.highlightTextIn a:hover:before {
  transform: scale(1);
  opacity: 1;
}
/* Highlight text in  */
div.highlightTextIn a {
  color: rgba(0, 0, 0, 0.4);
}
div.highlightTextIn a:before {
  transform: scale(1.2);
}