p {
  margin: 0;
  padding: 0;
}

.content-item {
  display:inline-block;
  -moz-backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  backface-visibility: hidden;
  height: 250px;
  margin: 100px 10px;
  overflow: hidden;
  position: relative;
  width: 275px;
}
.content-item .overlay {
  border-bottom: 100px solid #e8c63d;
  border-left: 100px solid transparent;
  bottom: 0;
  height: 0;
  opacity: .95;
  position: absolute;
  right: 0;
  text-indent: -9999px;
  -moz-transition: all 0.5s ease-out;
  -o-transition: all 0.5s ease-out;
  -webkit-transition: all 0.5s ease-out;
  transition: all 0.5s ease-out;
  width: 0;
}
.content-item:hover .overlay {
  border-bottom: 800px solid #e8c63d;
  border-left: 800px solid transparent;
  -moz-transition: all 0.5s ease-out;
  -o-transition: all 0.5s ease-out;
  -webkit-transition: all 0.5s ease-out;
  transition: all 0.5s ease-out;
}
.content-item .corner-overlay-content {
  bottom: 15px;
  color: #333;
  position: absolute;
  right: 15px;
  -moz-transition: all 0.5s ease-out;
  -o-transition: all 0.5s ease-out;
  -webkit-transition: all 0.5s ease-out;
  transition: all 0.5s ease-out;
}
.content-item:hover .corner-overlay-content {
  opacity: 0;
  -moz-transition: all 0.5s ease-out;
  -o-transition: all 0.5s ease-out;
  -webkit-transition: all 0.5s ease-out;
  transition: all 0.5s ease-out;
}
.content-item .overlay-content {
  bottom: 0;
  color: #333;
  left: 0;
  opacity: 0;
  padding: 30px;
  position: absolute;
  right: 0;
  top: 0;
  -moz-transition: all 0.3s ease-out;
  -o-transition: all 0.3s ease-out;
  -webkit-transition: all 0.3s ease-out;
  transition: all 0.3s ease-out;
}
.content-item .overlay-content h2 {
  border-bottom: 1px solid #333;
  padding: 0 0 12px;
}
.content-item:hover .overlay-content {
  opacity: 1;
  -moz-transition: all 0.3s ease-out;
  -o-transition: all 0.3s ease-out;
  -webkit-transition: all 0.3s ease-out;
  transition: all 0.3s ease-out;
  -moz-transition-delay: 0.3s;
  -o-transition-delay: 0.3s;
  -webkit-transition-delay: 0.3s;
  transition-delay: 0.3s;
}