Prueba.css

/* popup */
.popup {
    width: 100%;
    height: 100vh;
    display: none;
    position: fixed;
    top: 0;
    right: 0;
  }
  
  #popup-article:target {
    display: flex;
  }
  
  .popup:before {
    content: "";
    box-sizing: border-box;
    width: 100%;
    position: fixed;
    background-image:url('Media/fondo.jpg');
    left: 0;
    top: 50%;
    will-change: height, top;
    animation: open-animation 0.6s cubic-bezier(0.83, 0.04, 0, 1.16) 0.65s both;
  }
  
  .popup:after {
    content: "";
    width: 0;
    height: 2px;
    background-color: #f0f0f0;
    will-change: width, opacity;
    animation: line-animation 0.6s cubic-bezier(0.83, 0.04, 0, 1.16) both;
    position: absolute;
    top: 50%;
    left: 0;
    margin-top: -1px;
  }
  
  @keyframes line-animation {
    0% {
      width: 0;
      opacity: 1;
    }
    99% {
      width: 100%;
      opacity: 1;
    }
    100% {
      width: 100%;
      opacity: 0;
    }
  }
  @keyframes open-animation {
    0% {
      height: 0;
      top: 50%;
    }
    100% {
      height: 100vh;
      top: 0;
    }
  }
  .popup__block {
    height: calc(95vh - 40px);
    width: calc(185vh - 40px);
    padding: 2% 3%;
    box-sizing: border-box;
    position: relative;
    margin: auto;
    background-color: #ffffff;
    overflow: auto;
    animation: fade 0.5s ease-out 1.3s both;
    box-shadow: 0px 2px 4px rgba(0,0,0,0.2);
  }
  
  @keyframes fade {
    0% {
      opacity: 0;
    }
    100% {
      opacity: 1;
    }
  }
  .popup__title {
    font-size: 2.5rem;
    margin: 0 0 1em;
  }
  
  .popup__close {
    width: 3.2rem;
    height: 3.2rem;
    text-indent: -9999px;
    position: fixed;
    top: 20px;
    right: 20px;
    background-repeat: no-repeat;
    background-position: center center;
    background-size: contain;
    background-image: url(data:image/svg+xml;base64,PHN2ZyBmaWxsPSIjMDAwMDAwIiBoZWlnaHQ9IjI0IiB2aWV3Qm94PSIwIDAgMjQgMjQiIHdpZHRoPSIyNCIgeG1sbnM9Imh0dHA6Ly93d3cudzMub3JnLzIwMDAvc3ZnIj4gICAgPHBhdGggZD0iTTE5IDYuNDFMMTcuNTkgNSAxMiAxMC41OSA2LjQxIDUgNSA2LjQxIDEwLjU5IDEyIDUgMTcuNTkgNi40MSAxOSAxMiAxMy40MSAxNy41OSAxOSAxOSAxNy41OSAxMy40MSAxMnoiLz4gICAgPHBhdGggZD0iTTAgMGgyNHYyNEgweiIgZmlsbD0ibm9uZSIvPjwvc3ZnPg==);
  }

  .BotonCloFlow{
      width: 3.2rem;
      height: 3.2rem;
      text-indent: -9999px;
      position: fixed;
      top: 20px;
      right: 20px;
      background-repeat: no-repeat;
      background-position: center center;
      background-size: contain;
      background-image: url(data:image/svg+xml;base64,PHN2ZyBmaWxsPSIjMDAwMDAwIiBoZWlnaHQ9IjI0IiB2aWV3Qm94PSIwIDAgMjQgMjQiIHdpZHRoPSIyNCIgeG1sbnM9Imh0dHA6Ly93d3cudzMub3JnLzIwMDAvc3ZnIj4gICAgPHBhdGggZD0iTTE5IDYuNDFMMTcuNTkgNSAxMiAxMC41OSA2LjQxIDUgNSA2LjQxIDEwLjU5IDEyIDUgMTcuNTkgNi40MSAxOSAxMiAxMy40MSAxNy41OSAxOSAxOSAxNy41OSAxMy40MSAxMnoiLz4gICAgPHBhdGggZD0iTTAgMGgyNHYyNEgweiIgZmlsbD0ibm9uZSIvPjwvc3ZnPg==);
  }
  
  /*
  * demo page
  */
  @media screen and (min-width: 768px) {
    html {
      font-size: 62.5%;
    }
  }
  @media screen and (max-width: 767px) {
    html {
      font-size: 50%;
    }
  }
  body {
    font-family: -apple-system, BlinkMacSystemFont, Segoe UI, Roboto, Open Sans, Ubuntu, Fira Sans, Helvetica Neue, sans-serif;
    font-size: 1.6rem;
    color: #222;
    background-color: #512da8;
    margin: 0;
    -webkit-overflow-scrolling: touch;
    overflow-y: scroll;
  }
  
  p {
    margin: 0;
    line-height: 1.5;
  }
  
  p:not(:last-child) {
    margin-bottom: 1.5rem;
  }
  
  img {
    display: block;
    max-width: 100%;
  }
  
  a {
    text-decoration: none;
  }
  
  .open-popup {
    color: #fff;
    text-transform: uppercase;
    padding: 1rem 2rem;
    border: 1px solid;
  }
  
  .page {
    min-height: 100vh;
    display: flex;
  }
  
  .page__container {
    max-width: 1200px;
    padding-left: 1rem;
    padding-right: 1rem;
    margin: auto;
  }

  .inputGroup {
  background-color: #fff;
  display: block;
  margin: 0 0;
  position: relative;
  }

.inputGroup label {
  padding: 15px 65px 15px 30px;
  width: 100%;
  display: block;
  text-align: left;
  color: #3C454C;
  cursor: pointer;
  position: relative;
  z-index: 2;
  background-color: rgb(241, 241, 241);
  transition: color 200ms ease-in;
  overflow: hidden;
}
.inputGroup label:before {
  width: 100%;
  height: 10px;
  border-radius: 50%;
  content: "";
  background-color: rgb(82, 82, 82);
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%) scale3d(1, 1, 1);
  transition: all 300ms cubic-bezier(0.4, 0, 0.2, 1);
  opacity: 0;
  z-index: -1;
}
.inputGroup label:after {
  width: 32px;
  height: 32px;
  content: "";
  border: 2px solid #D1D7DC;
  background-color: #fff;
  background-image: url("data:image/svg+xml,%3Csvg width='32' height='32' viewBox='0 0 32 32' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M5.414 11L4 12.414l5.414 5.414L20.828 6.414 19.414 5l-10 10z' fill='%23fff' fill-rule='nonzero'/%3E%3C/svg%3E ");
  background-repeat: no-repeat;
  background-position: 2px 3px;
  border-radius: 50%;
  z-index: 2;
  position: absolute;
  right: 30px;
  top: 50%;
  transform: translateY(-50%);
  cursor: pointer;
  transition: all 200ms ease-in;
}
.inputGroup input:checked ~ label {
  color: #fff;
}
.inputGroup input:checked ~ label:before {
  transform: translate(-50%, -50%) scale3d(56, 56, 1);
  opacity: 1;
}
.inputGroup input:checked ~ label:after {
  background-color: rgba(160, 156, 157, 0.699);
  border-color: #fff;
}
.inputGroup input {
  width: 32px;
  height: 32px;
  order: 1;
  z-index: 2;
  position: absolute;
  right: 30px;
  top: 50%;
  transform: translateY(-50%);
  cursor: pointer;
  visibility: hidden;
}

.form {
  padding: 0 16px;
  max-width: 550px;
  margin: 50px auto;
  font-size: 18px;
  font-weight: 600;
  line-height: 36px;
}

body {
  font-family: "Fira Sans", sans-serif;
}

*,
*::before,
*::after {
  box-sizing: inherit;
}

html {
  box-sizing: border-box;
}

code {
  background-color: #9AA3AC;
  padding: 0 8px;
}
.draw-border {
  box-shadow: inset 0 0 0 4px #58afd1;
  color: #58afd1;
  transition: color 0.25s 0.0833333333s;
  position: relative;
}
.draw-border::before, .draw-border::after {
  border: 0 solid transparent;
  box-sizing: border-box;
  content: "";
  pointer-events: none;
  position: absolute;
  width: 0;
  height: 0;
  bottom: 0;
  right: 0;
}
.draw-border::before {
  border-bottom-width: 4px;
  border-left-width: 4px;
}
.draw-border::after {
  border-top-width: 4px;
  border-right-width: 4px;
}
.draw-border:hover {
  color: #ffe593;
}
.draw-border:hover::before, .draw-border:hover::after {
  border-color: #ffe593;
  transition: border-color 0s, width 0.25s, height 0.25s;
  width: 100%;
  height: 100%;
}
.draw-border:hover::before {
  transition-delay: 0s, 0s, 0.25s;
}
.draw-border:hover::after {
  transition-delay: 0s, 0.25s, 0s;
}

.btn {
  margin-left: 85%;
  background: none;
  border: none;
  cursor: pointer;
  line-height: 1.5;
  width: 15%;
  font: 700  "Roboto Slab", sans-serif;
  padding: 1em 1em;
  letter-spacing: 0.05rem;
}
.btn:focus {
  outline: 2px dotted #55d7dc;
}
/*----*/
@keyframes pulse {
  0% {
    transform: scale(0);
    opacity: 0;
  }
  33% {
    transform: scale(1);
    opacity: 1;
  }
  100% {
    transform: scale(3);
    opacity: 0;
  }
}
.button {
  margin-left: auto;
  margin-right: auto;
  display: block;
  align-items: center;
  background: #950B1A;
  box-shadow: 0 3px 2px 0 rgba(0, 0, 0, 0.1);
  border-radius: 5px;
  height: 45px;
  width: 15%;
  color: #fff;
  font-family: Lato, Arial, sans-serif;
  text-transform: uppercase;
  text-decoration: none;
  transition: background 0.3s, transform 0.3s, box-shadow 0.3s;
  will-change: transform;
}
.button:hover {
  background: rgb(196, 42, 60);
  box-shadow: 0 4px 17px rgba(0, 0, 0, 0.2);
  transform: translate3d(0, -2px, 0);
}
.button:active {
  box-shadow: 0 1px 1px 0 rgba(0, 0, 0, 0.1);
  transform: translate3d(0, 1px, 0);
}

.pulse {
  position: relative;
}
.pulse:before, .pulse:after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(255, 255, 255, 0.4);
  border-radius: 50%;
  width: 20px;
  height: 20px;
  opacity: 0;
  margin: auto;
}
.pulse:before {
  animation: pulse 1.5s infinite linear;
}
.pulse:after {
  animation: pulse 2s 0.4s infinite linear;
}
.pulse:hover:before, .pulse:hover:after {
  display: none;
}


@import url(https://code.ionicframework.com/ionicons/2.0.1/css/ionicons.min.css);

.snip1566 {
  position: relative;
  display: inline-block;
  margin: 20px;
  max-width: 300px;
  width: 100%;
  color: rgb(255, 255, 255);
  font-size: 4.5px;
  box-shadow: none !important;
  -webkit-transform: translateZ(0);
  transform: translateZ(0);
}


.snip1566 *,
.snip1566:before,
.snip1566:after {
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
  -webkit-transition: all 0.3s linear;
  transition: all 0.3s linear;
}

.snip1566:before,
.snip1566:after {
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
  border-radius: 50%;
  content: '';
  position: absolute;
  top: 0px;
  bottom: 0px;
  left: 0px;
  right: 0px;
  z-index: -1;
  border: 2px solid #bbb;
  border-color: transparent #bbb;
}

.snip1566 img {
  max-width: 100%;
  backface-visibility: hidden;
  vertical-align: top;
  border-radius: 50%;
  padding: 10px;
}

.snip1566 figcaption {
  position: absolute;
  top: 5px;
  bottom: 5px;
  left: 5px;
  right: 5px;
  opacity: 0;
  background-color: rgba(0, 0, 0, 0.9);
  border-radius: 50%;
  color:  rgb(255, 255, 255);;
}

.snip1566 i {
  position: fixed;
  top: 60%;
  left: 50%;
  width: 300px;
  height: 300px;
  text-align: center;
  -webkit-transform: translate(-50%, -50%);
  transform: translate(-50%, -50%);
  font-size: 7em;
  z-index: 1;
}

.snip1566 a {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 1;
}

.snip1566:hover figcaption,
.snip1566.hover figcaption {
  opacity: 0.6;
  -webkit-transform: translateX(0);
  transform: translateX(0);
}

.snip1566:hover:before,
.snip1566.hover:before,
.snip1566:hover:after,
.snip1566.hover:after {
  border-width: 10px;
}

.snip1566:hover:before,
.snip1566.hover:before {
  -webkit-transform: rotate(45deg);
  transform: rotate(45deg);
}

.snip1566:hover:after,
.snip1566.hover:after {
  -webkit-transform: rotate(-45deg);
  transform: rotate(-45deg);
}