nav{
  position: absolute;
  top: 0.5rem;
  margin-left: 0.2rem;
  visibility: hidden;
  z-index: 2;
}
nav .tag svg{
  font-size: 4rem;
  margin-left:0.2rem;
}
nav .tag.active svg{
  color:red;
}

.screen-front{
    display: table;
    width: 100vw;
    height: 100vh;
    color: red;
    background-color: white;
    
}
.screen-front h1{
    display: table-cell;
    text-align: center;
    vertical-align: middle;
    font-family: fantasy;
    font-size: 5rem;
}

/*animation1*/
.Animation1 {
    transform: rotate(0deg);
  }
  
  /* Safari 4.0 - 8.0 */
  @-webkit-keyframes Animation1 {
    100%,0% {transform: rotate(-90deg);opacity: 0;
      /* background: #FFA726; */
    }
    80%,20% {transform: rotate(0deg);opacity: 1;
      /* background: #4d2982; */
    }
  }
  /* Standard syntax */
  @keyframes Animation1 {
    100%,0% {transform: rotate(-90deg);opacity: 0;
      /* background: #FFA726; */
    }
    80%,20% {transform: rotate(0deg);opacity: 1;
      /* background: #4d2982; */
    }
  }
  
  /*animation2*/
  .Animation2 {
    transform: rotate(0deg);
  }
  
  /* Safari 4.0 - 8.0 */
  @-webkit-keyframes Animation2 {
    100%,0% {transform: rotate(90deg);opacity: 0;}
    80%,20% {transform: rotate(0deg);opacity: 1;}
  }
  /* Standard syntax */
  @keyframes Animation2 {
    100%,0% {transform: rotate(90deg);opacity: 0;}
    80%,20% {transform: rotate(0deg);opacity: 1;}
  }
  /* Animation3 */
  .Animation3 {
    transform: rotate(90deg);
  }
  
  /* Safari 4.0 - 8.0 */
  @-webkit-keyframes Animation3 {
    100%,0% {transform: rotate(90deg);opacity: 0;}
    80%,20% {transform: rotate(0deg);opacity: 1;}
  }
  /* Standard syntax */
  @keyframes Animation3 {
    100%,0% {transform: rotate(90deg);opacity: 0;}
    80%,20% {transform: rotate(0deg);opacity: 1;}
  }
  /* Animation4 */
  .Animation4 {
    transform: rotate(-90deg);
  }
  
  /* Safari 4.0 - 8.0 */
  @-webkit-keyframes Animation4 {
    0% {transform: rotate(90deg);opacity: 0;}
    80%,20% {transform: rotate(0deg);opacity: 1;}
    100%{transform: rotate(-90deg);opacity: 0;}
  }
  /* Standard syntax */
  @keyframes Animation4 {
    0% {transform: rotate(90deg);opacity: 0;}
    80%,20% {transform: rotate(0deg);opacity: 1;}
    100%{transform: rotate(-90deg);opacity: 0;}
  }
  /* Animation5 */
  
  /* Safari 4.0 - 8.0 */
  @-webkit-keyframes Animation5 {
    0% {opacity: 0;}
    80%,20% {opacity: 1;}
    100%{opacity: 0;}
  }
  /* Standard syntax */
  @keyframes Animation5 {
    0% {opacity: 0;}
    80%,20% {opacity: 1;}
    100%{opacity: 0;}
  }

  /* Animation6 */
  /* Safari 4.0 - 8.0 */
  @-webkit-keyframes Animation6 {
    0% {opacity: 0; }
    48%,52% {opacity: 1; }
    100%{opacity: 0;}
  }
  /* Standard syntax */
  @keyframes Animation6 {
    0% {opacity: 0;}
    48%,52% {opacity: 1;}
    100%{opacity: 0;}
  }
  /* Animation7 */
  
  /* Safari 4.0 - 8.0 */
  @-webkit-keyframes Animation7 {
    0% {opacity: 0;}
    40%,60% {opacity: 1;}
    100%{opacity: 0;}
  }
  /* Standard syntax */
  @keyframes Animation7 {
    0% {opacity: 0;}
    40%,60% {opacity: 1;}
    100%{opacity: 0;}
  }
  /*Animation8,9,10*/
  .Animation10 {
    -webkit-animation: Animation8 2s ease; /* Safari 4.0 - 8.0 */
    animation: Animation8 2s ease;
    animation-duration: 2s;
  }
  
  /* Safari 4.0 - 8.0 */
  @-webkit-keyframes Animation8 {
    0% {opacity: 1;}
    40%,60% {opacity: 1;}
    100%{opacity: 1;}
  }
  /* Standard syntax */
  @keyframes Animation8 {
    0% {opacity: 1;}
    40%,60% {opacity: 1;}
    100%{opacity: 1;}
  }
  /* loading */
  /*---------1--------*/
  
  .lds-dual-ring {
    /* position: fixed; */
    display: inline-block;
    width: 64px;
    height: 64px;
    z-index: 1500;
  }
  .lds-dual-ring:after {
    content: " ";
    display: block;
    width: 3rem;
    height: 3rem;
    margin: 1px;
    border-radius: 50%;
    border: 5px solid white;
    border-color: white transparent white transparent;
    animation: lds-dual-ring 2s linear infinite;
  }
  @keyframes lds-dual-ring {
    0% {
      transform: rotate(0deg);
      opacity: 0;
    }
    80%,20%{
      opacity: 1;
    }
    100% {
      transform: rotate(360deg);
      opacity: 0;
    }
  }
  /*------2-------*/
  .lds-roller {
    display: inline-block;
    position: relative;
    width: 64px;
    height: 64px;
  }
  .lds-roller div {
    animation: lds-roller 1.2s cubic-bezier(0.5, 0, 0.5, 1) infinite;
    transform-origin: 32px 32px;
  }
  .lds-roller div:after {
    content: " ";
    display: block;
    position: absolute;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: white;
    margin: -3px 0 0 -3px;
  }
  .lds-roller div:nth-child(1) {
    animation-delay: -0.036s;
  }
  .lds-roller div:nth-child(1):after {
    top: 50px;
    left: 50px;
  }
  .lds-roller div:nth-child(2) {
    animation-delay: -0.072s;
  }
  .lds-roller div:nth-child(2):after {
    top: 54px;
    left: 45px;
  }
  .lds-roller div:nth-child(3) {
    animation-delay: -0.108s;
  }
  .lds-roller div:nth-child(3):after {
    top: 57px;
    left: 39px;
  }
  .lds-roller div:nth-child(4) {
    animation-delay: -0.144s;
  }
  .lds-roller div:nth-child(4):after {
    top: 58px;
    left: 32px;
  }
  .lds-roller div:nth-child(5) {
    animation-delay: -0.18s;
  }
  .lds-roller div:nth-child(5):after {
    top: 57px;
    left: 25px;
  }
  .lds-roller div:nth-child(6) {
    animation-delay: -0.216s;
  }
  .lds-roller div:nth-child(6):after {
    top: 54px;
    left: 19px;
  }
  .lds-roller div:nth-child(7) {
    animation-delay: -0.252s;
  }
  .lds-roller div:nth-child(7):after {
    top: 50px;
    left: 14px;
  }
  .lds-roller div:nth-child(8) {
    animation-delay: -0.288s;
  }
  .lds-roller div:nth-child(8):after {
    top: 45px;
    left: 10px;
  }
  @keyframes lds-roller {
    0% {
      transform: rotate(0deg);
      opacity: 0;
    }
    80%,20%{
  opacity: 1;
    }
    100% {
      transform: rotate(360deg);
      opacity: 0;
    }
  }
  /*----3----*/
  .lds-circle {
    display: inline-block;
    transform: translateZ(1px);
  }
  .lds-circle > div {
    display: inline-block;
    width: 51px;
    height: 51px;
    margin: 6px;
    border-radius: 50%;
    background: white;
    animation: lds-circle 2.4s cubic-bezier(0, 0.2, 0.8, 1) infinite;
  }
  @keyframes lds-circle {
    0%, 100% {
      animation-timing-function: cubic-bezier(0.5, 0, 1, 0.5);
    }
    100%,0%{opacity: 0;}
    80%,20%{opacity: 1;}
    0% {
      transform: rotateY(0deg);
    }
    50% {
      transform: rotateY(1800deg);
      animation-timing-function: cubic-bezier(0, 0.5, 0.5, 1);
    }
    100% {
      transform: rotateY(3600deg);
    }
  }
  /*----4---*/
  .lds-fb {
    display: inline-block;
    position: relative;
    width: 64px;
    height: 64px;
  }
  .lds-fb div {
    display: inline-block;
    position: absolute;
    left: 6px;
    width: 13px;
    background: #fff;
    animation: lds-fb 1.2s cubic-bezier(0, 0.5, 0.5, 1) infinite;
  }
  .lds-fb div:nth-child(1) {
    left: 6px;
    animation-delay: -0.24s;
  }
  .lds-fb div:nth-child(2) {
    left: 26px;
    animation-delay: -0.12s;
  }
  .lds-fb div:nth-child(3) {
    left: 45px;
    animation-delay: 0;
  }
  @keyframes lds-fb {
    0% {
      top: 6px;
      height: 51px;
    }
    100%,0%{opacity: 0;}
    80%,20%{opacity: 1;}
    50%, 100% {
      top: 19px;
      height: 26px;
    }
  }
  /*---5---*/
  .lds-ring {
    display: inline-block;
    position: relative;
    width: 64px;
    height: 64px;
  }
  .lds-ring div {
    box-sizing: border-box;
    display: block;
    position: absolute;
    width: 51px;
    height: 51px;
    margin: 6px;
    border: 6px solid #fff;
    border-radius: 50%;
    animation: lds-ring 1.2s cubic-bezier(0.5, 0, 0.5, 1) infinite;
    border-color: #fff transparent transparent transparent;
  }
  .lds-ring div:nth-child(1) {
    animation-delay: -0.45s;
  }
  .lds-ring div:nth-child(2) {
    animation-delay: -0.3s;
  }
  .lds-ring div:nth-child(3) {
    animation-delay: -0.15s;
  }
  @keyframes lds-ring {
    0% {
      transform: rotate(0deg);
    }
    100% {
      transform: rotate(360deg);
    }
  }
  /*---6---*/
  .lds-ellipsis {
    display: inline-block;
    position: relative;
    width: 64px;
    height: 64px;
  }
  .lds-ellipsis div {
    position: absolute;
    top: 27px;
    width: 11px;
    height: 11px;
    border-radius: 50%;
    background: #fff;
    animation-timing-function: cubic-bezier(0, 1, 1, 0);
  }
  .lds-ellipsis div:nth-child(1) {
    left: 6px;
    animation: lds-ellipsis1 0.6s infinite;
  }
  .lds-ellipsis div:nth-child(2) {
    left: 6px;
    animation: lds-ellipsis2 0.6s infinite;
  }
  .lds-ellipsis div:nth-child(3) {
    left: 26px;
    animation: lds-ellipsis2 0.6s infinite;
  }
  .lds-ellipsis div:nth-child(4) {
    left: 45px;
    animation: lds-ellipsis3 0.6s infinite;
  }
  @keyframes lds-ellipsis1 {
    0% {
      transform: scale(0);
    }
    100% {
      transform: scale(1);
    }
  }
  @keyframes lds-ellipsis3 {
    0% {
      transform: scale(1);
    }
    100% {
      transform: scale(0);
    }
  }
  @keyframes lds-ellipsis2 {
    0% {
      transform: translate(0, 0);
    }
     100%,0%{opacity: 0;}
    80%,20%{opacity: 1;}
    100% {
      transform: translate(19px, 0);
    }
  }
  /*---7---*/
  .lds-ripple {
    display: inline-block;
    position: relative;
    width: 64px;
    height: 64px;
  }
  .lds-ripple div {
    position: absolute;
    border: 4px solid #fff;
    opacity: 1;
    border-radius: 50%;
    animation: lds-ripple 1s cubic-bezier(0, 0.2, 0.8, 1) infinite;
  }
  .lds-ripple div:nth-child(2) {
    animation-delay: -0.5s;
  }
  @keyframes lds-ripple {
    0% {
      top: 28px;
      left: 28px;
      width: 0;
      height: 0;
      opacity: 1;
    }
    100% {
      top: -1px;
      left: -1px;
      width: 58px;
      height: 58px;
      opacity: 0;
    }
  }
  /*---8---*/
  .lds-spinner {
    color: official;
    display: inline-block;
    position: relative;
    width: 64px;
    height: 64px;
  }
  .lds-spinner div {
    transform-origin: 32px 32px;
    animation: lds-spinner 1.2s linear infinite;
  }
  .lds-spinner div:after {
    content: " ";
    display: block;
    position: absolute;
    top: 3px;
    left: 29px;
    width: 5px;
    height: 14px;
    border-radius: 20%;
    background: #fff;
  }
  .lds-spinner div:nth-child(1) {
    transform: rotate(0deg);
    animation-delay: -1.1s;
  }
  .lds-spinner div:nth-child(2) {
    transform: rotate(30deg);
    animation-delay: -1s;
  }
  .lds-spinner div:nth-child(3) {
    transform: rotate(60deg);
    animation-delay: -0.9s;
  }
  .lds-spinner div:nth-child(4) {
    transform: rotate(90deg);
    animation-delay: -0.8s;
  }
  .lds-spinner div:nth-child(5) {
    transform: rotate(120deg);
    animation-delay: -0.7s;
  }
  .lds-spinner div:nth-child(6) {
    transform: rotate(150deg);
    animation-delay: -0.6s;
  }
  .lds-spinner div:nth-child(7) {
    transform: rotate(180deg);
    animation-delay: -0.5s;
  }
  .lds-spinner div:nth-child(8) {
    transform: rotate(210deg);
    animation-delay: -0.4s;
  }
  .lds-spinner div:nth-child(9) {
    transform: rotate(240deg);
    animation-delay: -0.3s;
  }
  .lds-spinner div:nth-child(10) {
    transform: rotate(270deg);
    animation-delay: -0.2s;
  }
  .lds-spinner div:nth-child(11) {
    transform: rotate(300deg);
    animation-delay: -0.1s;
  }
  .lds-spinner div:nth-child(12) {
    transform: rotate(330deg);
    animation-delay: 0s;
  }
  @keyframes lds-spinner {
    0% {
      opacity: 1;
    }
    100% {
      opacity: 0;
    }
  }
  /*----9----*/
  .lds-grid {
    display: inline-block;
    position: relative;
    width: 64px;
    height: 64px;
  }
  .lds-grid div {
    position: absolute;
    width: 13px;
    height: 13px;
    border-radius: 50%;
    background: #fff;
    animation: lds-grid 1.2s linear infinite;
  }
  .lds-grid div:nth-child(1) {
    top: 6px;
    left: 6px;
    animation-delay: 0s;
  }
  .lds-grid div:nth-child(2) {
    top: 6px;
    left: 26px;
    animation-delay: -0.4s;
  }
  .lds-grid div:nth-child(3) {
    top: 6px;
    left: 45px;
    animation-delay: -0.8s;
  }
  .lds-grid div:nth-child(4) {
    top: 26px;
    left: 6px;
    animation-delay: -0.4s;
  }
  .lds-grid div:nth-child(5) {
    top: 26px;
    left: 26px;
    animation-delay: -0.8s;
  }
  .lds-grid div:nth-child(6) {
    top: 26px;
    left: 45px;
    animation-delay: -1.2s;
  }
  .lds-grid div:nth-child(7) {
    top: 45px;
    left: 6px;
    animation-delay: -0.8s;
  }
  .lds-grid div:nth-child(8) {
    top: 45px;
    left: 26px;
    animation-delay: -1.2s;
  }
  .lds-grid div:nth-child(9) {
    top: 45px;
    left: 45px;
    animation-delay: -1.6s;
  }
  @keyframes lds-grid {
    0%, 100% {
      opacity: 1;
    }
    50% {
      opacity: 0.5;
    }
  }
  /*---10---*/
  .lds-hourglass {
    display: inline-block;
    position: relative;
    width: 64px;
    height: 64px;
  }
  .lds-hourglass:after {
    content: " ";
    display: block;
    border-radius: 50%;
    width: 0;
    height: 0;
    margin: 6px;
    box-sizing: border-box;
    border: 26px solid #fff;
    border-color: #fff transparent #fff transparent;
    animation: lds-hourglass 1.2s infinite;
  }
  @keyframes lds-hourglass {
    0% {
      transform: rotate(0);
      animation-timing-function: cubic-bezier(0.55, 0.055, 0.675, 0.19);
    }
    50% {
      transform: rotate(900deg);
      animation-timing-function: cubic-bezier(0.215, 0.61, 0.355, 1);
    }
    100% {
      transform: rotate(1800deg);
    }
  }
  /*---11---*/
  .lds-default {
    display: inline-block;
    position: relative;
    width: 64px;
    height: 64px;
  }
  .lds-default div {
    position: absolute;
    width: 5px;
    height: 5px;
    background: #fff;
    border-radius: 50%;
    animation: lds-default 1.2s linear infinite;
  }
  .lds-default div:nth-child(1) {
    animation-delay: 0s;
    top: 29px;
    left: 53px;
  }
  .lds-default div:nth-child(2) {
    animation-delay: -0.1s;
    top: 18px;
    left: 50px;
  }
  .lds-default div:nth-child(3) {
    animation-delay: -0.2s;
    top: 9px;
    left: 41px;
  }
  .lds-default div:nth-child(4) {
    animation-delay: -0.3s;
    top: 6px;
    left: 29px;
  }
  .lds-default div:nth-child(5) {
    animation-delay: -0.4s;
    top: 9px;
    left: 18px;
  }
  .lds-default div:nth-child(6) {
    animation-delay: -0.5s;
    top: 18px;
    left: 9px;
  }
  .lds-default div:nth-child(7) {
    animation-delay: -0.6s;
    top: 29px;
    left: 6px;
  }
  .lds-default div:nth-child(8) {
    animation-delay: -0.7s;
    top: 41px;
    left: 9px;
  }
  .lds-default div:nth-child(9) {
    animation-delay: -0.8s;
    top: 50px;
    left: 18px;
  }
  .lds-default div:nth-child(10) {
    animation-delay: -0.9s;
    top: 53px;
    left: 29px;
  }
  .lds-default div:nth-child(11) {
    animation-delay: -1s;
    top: 50px;
    left: 41px;
  }
  .lds-default div:nth-child(12) {
    animation-delay: -1.1s;
    top: 41px;
    left: 50px;
  }
  @keyframes lds-default {
    0%, 20%, 80%, 100% {
      transform: scale(1);
    }
    50% {
      transform: scale(1.5);
    }
  }
  /*---12---*/
  .lds-heart {
    display: inline-block;
    position: relative;
    width: 64px;
    height: 64px;
    transform: rotate(45deg);
    transform-origin: 32px 32px;
  }
  .lds-heart div {
    top: 23px;
    left: 19px;
    position: absolute;
    width: 26px;
    height: 26px;
    background: #fff;
    animation: lds-heart 1.2s infinite cubic-bezier(0.215, 0.61, 0.355, 1);
  }
  .lds-heart div:after,
  .lds-heart div:before {
    content: " ";
    position: absolute;
    display: block;
    width: 26px;
    height: 26px;
    background: #fff;
  }
  .lds-heart div:before {
    left: -17px;
    border-radius: 50% 0 0 50%;
  }
  .lds-heart div:after {
    top: -17px;
    border-radius: 50% 50% 0 0;
  }
  @keyframes lds-heart {
    0% {
      transform: scale(0.95);
    }
    100%,0%{opacity: 0;}
    50%{opacity: 1;}
    5% {
      transform: scale(1.1);
    }
    39% {
      transform: scale(0.85);
    }
    45% {
      transform: scale(1);
    }
    60% {
      transform: scale(0.95);
    }
    100% {
      transform: scale(0.9);
    }
  }

  /*-- performance mobile --*/
  @media (max-width: 768px) {
    .screen-front h1{
      font-size: 3rem;
    }
    .screen-front{
      text-align: center;
    }
    section .screen-front{
      align-items: center;
      justify-content: center;
    }
  }

  /*--- preformance ---*/
  /* .screen-front{
    position: absolute;
    width: 100vw;
    height: 100vh;
    top: 0;
    left: 0;
    z-index: -1;
    opacity: 0;
    animation: Animation5 2s ease forwards;
  }
  .screen-back{
    position: absolute;
    width: 100vw;
    height: 100vh;
    top: 0;
    left: 0;
    z-index: -2;
    opacity: 0;
    animation: Animation6 2s ease forwards;
    animation-delay: 0.5s;
  } */