.cbx {
    position: relative;
    top: -0.1vw;
    width: 2vh;
    height: 2vh;
    border: 1px solid #e00099;
    /* border-radius: 3px; */
    vertical-align: middle;
    transition: background 0.1s ease;
    cursor: pointer;
    background-color: white;
}
    .cbx:after {
        content: '';
        position: absolute;
        top: 0.2vh;
        left: 0.8vh;
        width: 0.4vh;
        height: 1.3vh;
        opacity: 0;
        transform: rotate(45deg) scale(0);
        border-right: 2px solid #e00099;
        border-bottom: 2px solid #e00099;
        transition: all 0.3s ease;
        transition-delay: 0.15s;
    }
.hidden-xs-up {
    /*visibility:hidden;*/
    width: 1px;
    position: relative;
    left: 0.7vw;
}
.lbl {
    margin-left: 5px;
    vertical-align: middle;
    cursor: pointer;
    font-size: 2vh;
}
#chkTerminos:checked ~ .cbx {
    border-color: #e00099;
    background: #ffffff;
    animation: jelly 0.6s ease;
}
    #chkTerminos:checked ~ .cbx:after {
        opacity: 1;
        transform: rotate(45deg) scale(1);
    }
.cntr {
  position: absolute;
  top: 50%;
  left: 0;
  width: 100%;
  text-align: center;
}
@-moz-keyframes jelly {
  from {
    transform: scale(1, 1);
  }
  30% {
    transform: scale(1.25, 0.75);
  }
  40% {
    transform: scale(0.75, 1.25);
  }
  50% {
    transform: scale(1.15, 0.85);
  }
  65% {
    transform: scale(0.95, 1.05);
  }
  75% {
    transform: scale(1.05, 0.95);
  }
  to {
    transform: scale(1, 1);
  }
}
@-webkit-keyframes jelly {
  from {
    transform: scale(1, 1);
  }
  30% {
    transform: scale(1.25, 0.75);
  }
  40% {
    transform: scale(0.75, 1.25);
  }
  50% {
    transform: scale(1.15, 0.85);
  }
  65% {
    transform: scale(0.95, 1.05);
  }
  75% {
    transform: scale(1.05, 0.95);
  }
  to {
    transform: scale(1, 1);
  }
}
@-o-keyframes jelly {
  from {
    transform: scale(1, 1);
  }
  30% {
    transform: scale(1.25, 0.75);
  }
  40% {
    transform: scale(0.75, 1.25);
  }
  50% {
    transform: scale(1.15, 0.85);
  }
  65% {
    transform: scale(0.95, 1.05);
  }
  75% {
    transform: scale(1.05, 0.95);
  }
  to {
    transform: scale(1, 1);
  }
}
@keyframes jelly {
  from {
    transform: scale(1, 1);
  }
  30% {
    transform: scale(1.25, 0.75);
  }
  40% {
    transform: scale(0.75, 1.25);
  }
  50% {
    transform: scale(1.15, 0.85);
  }
  65% {
    transform: scale(0.95, 1.05);
  }
  75% {
    transform: scale(1.05, 0.95);
  }
  to {
    transform: scale(1, 1);
  }
}