Categoría: HTML5 y CSS3

.button {
  margin: 40px auto;
  font-size: 50px;
  text-decoration: none;
  font-weight: 400;
  color: #666;
  border: 1px solid #ccc;
  cursor: pointer;
  padding: 20px 0;
  position: relative;
  top: 50px;
  background: #eee;
  width: 300px;
  display: block;
  text-align: center;
  border-radius: 5px;
}
.modalbg {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  background: rgba(0, 0, 0, 0);
  z-index: 99999;
  -moz-transition: all 2s ease-out;
  -webkit-transition: all 2s ease-out;
  -o-transition: all 2s ease-out;
  transition: all 2s ease-out;
  -webkit-transition-delay: 0.2s;
  -moz-transition-delay: 0.2s;
  -o-transition-delay: 0.2s;
  -transition-delay: 0.2s;
  display: block;
  pointer-events: none;
}
.modalbg .dialog {
  width: 300px;
  position: relative;
  top: -1000px;
  margin: 10% auto;
  padding: 5px 20px 13px 20px;
  -moz-border-radius: 10px;
  -webkit-border-radius: 10px;
  border-radius: 10px;
  background: #fff;
  background: -moz-linear-gradient(#fff, #ccc);
  background: -webkit-linear-gradient(#fff, #ccc);
  background: -o-linear-gradient(#fff, #ccc);
  box-shadow: 0 0 10px #000;
  -moz-box-shadow: 0 0 10px #000;
  -webkit-box-shadow: 0 0 10px #000;
}
.modalbg:target {
  display: block;
  pointer-events: auto;
  background: rgba(4, 10, 30, 0.8);
  -moz-transition: all 0.5s ease-out;
  -webkit-transition: all 0.5s ease-out;
  -o-transition: all 0.5s ease-out;
  transition: all 0.5s ease-out;
}
.modalbg:target .dialog {
  top: -20px;
  -moz-transition: all 0.8s ease-out;
  -webkit-transition: all 0.8s ease-out;
  -o-transition: all 0.8s ease-out;
  transition: all 0.8s ease-out;
  -webkit-transition-delay: 0.4s;
  -moz-transition-delay: 0.4s;
  -o-transition-delay: 0.4s;
  -transition-delay: 0.4s;
}
.close {
  background: #606061;
  color: #FFFFFF;
  line-height: 25px;
  position: absolute;
  right: -12px;
  text-align: center;
  top: -10px;
  width: 24px;
  text-decoration: none;
  font-weight: bold;
  -webkit-border-radius: 12px;
  -moz-border-radius: 12px;
  border-radius: 12px;
  box-shadow: 0 0 10px #000;
  -moz-box-shadow: 0 0 10px #000;
  -webkit-box-shadow: 0 0 10px #000;
  -moz-transition: all 0.5s ease-out;
  -webkit-transition: all 0.5s ease-out;
  -o-transition: all 0.5s ease-out;
  transition: all 0.5s ease-out;
  -webkit-transition-delay: 0.2s;
  -moz-transition-delay: 0.2s;
  -o-transition-delay: 0.2s;
  -transition-delay: 0.2s;
}
.close:hover {
  background: #00d9ff;
  -moz-transition: all 0.5s ease-out;
  -webkit-transition: all 0.5s ease-out;
  -o-transition: all 0.5s ease-out;
  transition: all 0.5s ease-out;
}
.fineprint {
  font-style: italic;
  font-size: 10px;
  color: #646;
}
a {
  color: #333;
  text-decoration: none;
}