a:hover{opacity:1;}

.element_container{
  -webkit-transition: all 0.25s ease-in-out;
  -moz-transition: all 0.25s ease-in-out;
  -ms-transition: all 0.25s ease-in-out;
  -o-transition: all 0.25s ease-in-out;
  transition: all 0.25s ease-in-out;
  opacity: 0;
  width:100%;
  padding: 20px 40px;
  background: rgba(0,0,0,0.4);
  border-radius: 50%;
  height: 300px;
}

.element:first-child .element_container{
  bottom: 55%;
}

.element:nth-child(2) .element_container{
  bottom: 40%;
}

.element:last-child .element_container{
  bottom: 15%;
}

.element.active .element_container{
  opacity: 1;
  -webkit-transition: all 0.25s ease-in-out;
  -moz-transition: all 0.25s ease-in-out;
  -ms-transition: all 0.25s ease-in-out;
  -o-transition: all 0.25s ease-in-out;
  transition: all 0.25s ease-in-out;

}

.pen {
  max-width: 635px;
  width: 100%;
  margin: 50px auto 0;
  opacity: 0;
  position: relative;
  -webkit-transition: all 0.25s ease-in-out;
  -moz-transition: all 0.25s ease-in-out;
  -ms-transition: all 0.25s ease-in-out;
  -o-transition: all 0.25s ease-in-out;
  transition: all 0.25s ease-in-out;
  -webkit-animation: 1s appear 1 forwards;
  -moz-animation: 1s appear 1 forwards;
  -o-animation: 1s appear 1 forwards;
  animation: 1s appear 1 forwards;
}

.stage {
  max-width: 635px;
  width: 100%;
  height: 70vh;
  -webkit-transition: all 0.25s ease-in-out;
  -moz-transition: all 0.25s ease-in-out;
  -ms-transition: all 0.25s ease-in-out;
  -o-transition: all 0.25s ease-in-out;
  transition: all 0.25s ease-in-out;
  margin:auto;
  text-align: center;
  padding:120px 0;
}
.element {
  background: green;
  width: 202px;
  -webkit-transform-origin: 50% 50%;
  height: inherit;
  margin: 0 7px 0 0;
  display: inline-block;
  -webkit-transition: all 0.25s ease-in-out;
  -moz-transition: all 0.25s ease-in-out;
  -ms-transition: all 0.25s ease-in-out;
  -o-transition: all 0.25s ease-in-out;
  transition: all 0.25s ease-in-out;
  -webkit-transform: translate3d(0, 0, 0);
  -moz-transform: translate3d(0, 0, 0);
  -ms-transform: translate3d(0, 0, 0);
  -o-transform: translate3d(0, 0, 0);
  transform: translate3d(0, 0, 0);
}
.element:hover{cursor: pointer;}

.element.active {
  width: 282px;
  -webkit-transition: all 0.25s ease-in-out;
  -moz-transition: all 0.25s ease-in-out;
  -ms-transition: all 0.25s ease-in-out;
  -o-transition: all 0.25s ease-in-out;
  transition: all 0.25s ease-in-out;
}
.element.inactive {
  width: 162px;
  -webkit-transition: all 0.25s ease-in-out;
  -moz-transition: all 0.25s ease-in-out;
  -ms-transition: all 0.25s ease-in-out;
  -o-transition: all 0.25s ease-in-out;
  transition: all 0.25s ease-in-out;
  opacity: 0.4;
}
.element:last-of-type {
  margin: 0;
}
@media all and (min-width: 900px) {
  .pen {
    max-width: 890px;
  }
  .element {
    width: 30%;
  }
  .element.inactive {
    width: 28%;
  }
  .element.active {
    width: 33%;
  }
  .stage {
    max-width: 1000px;
    height: 70vh;
  }
}
@media all and (max-width: 660px) {
  .pen {
    max-width: 335px;
  }
  .element {
    width: 101px;
  }
  .element.inactive {
    width: 61px;
  }
  .element.active {
    width: 181px;
  }
  .stage {
    max-width: 335px;
  }
}

@media all and (max-width: 425px) {
  .element {
    width: 100%;
    height: 200px;

  }
  .element.inactive {
    width: 100%;
    opacity: 1;
  }
  .element.active {
    width: 100%;
  }
  .stage {
    max-width: unset;
    width:100%;
    padding-top: 20px;
  }
  .element:nth-child(2) .element_container, .element:first-child .element_container, .element:last-child .element_container{
    bottom: 0;
    top:0;
  }

  .element_container{
    padding:30px 0;
    display: block;
    opacity: 1;
  }

  
}

@-webkit-keyframes appear {
  15% {
    opacity: 0;
  }
  100% {
    opacity: 1;
  }
}
@-moz-keyframes appear {
  15% {
    opacity: 0;
  }
  100% {
    opacity: 1;
  }
}
@-o-keyframes appear {
  15% {
    opacity: 0;
  }
  100% {
    opacity: 1;
  }
}
@keyframes appear {
  15% {
    opacity: 0;
  }
  100% {
    opacity: 1;
  }
}