@font-face {
  font-family: OPlusSans3 ;
  src: url("https://resource.neokoni.moe/font/OPlusSans3-Light.subset.ttf");
}

*{
  -webkit-user-select: none;
  -moz-user-select: none;
  font-family: 'OPlusSans3';
  margin: 0;
  padding: 0;
  user-select: none;
  cursor: url("data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 8 8' width='8px' height='8px'><circle cx='4' cy='4' r='4' opacity='.5'/></svg>") 4 4, auto
}
.btm404{
    display: block;
    text-decoration: none;
    color: var(--black);
    font-size: 25px;
    margin-top: 10px;
    padding-left:8px;
    height: 60px;
    width: 173px;
    border: solid 1px;
    animation: slide-top 1.5s both;
    -moz-animation: slide-top 1.5s both;
    -webkit-animation: slide-top 1.5s both;
    -o-animation: slide-top 1.5s both; 
    transition-duration:0.5s;
    -webkit-transition-duration:0.5s;
    -moz-transition-duration:0.5s;
    -o-transition-duration:0.5s;
    border-radius: 5px;
}
.btm404:hover{
    background-color: #f9fbfd;
    transform: scale(1.03);
    border: solid 1px;
    border-color:#9c9a9a;
    box-shadow: 0px 0px 10px rgba(49, 49, 49, 0.479);
    -webkit-transform: scale(1.03);
    -moz-transform: scale(1.03);
    -o-transform: scale(1.03);
}

@keyframes slide-top {
    0% {
      -webkit-transform: translateY(200px);
      -moz-transform: translateY(200px);
      -o-transform: translateY(200px);
      transform: translateY(200px);
      color: rgba(0,0,0,0);
    }
    100% {
      -webkit-transform: translateY(0px);
      -moz-transform: translateY(0px);
      -o-transform: translateY(0px);
      transform: translateY(0px);
    }
}

@keyframes ab {
    0%{
      transform: scale(1);
      -webkit-transform: scale(1);
      -moz-transform: scale(1);
      -o-transform: scale(1);
    }
    50%{
      transform: rotate(0.5turn) scale(1.5);
      -webkit-transform: rotate(0.5turn) scale(1.5);
      -moz-transform: rotate(0.5turn) scale(1.5);
      -o-transform: rotate(0.5turn) scale(1.5);
      max-height: calc(100vh);
      overflow: hidden;
    }
    100%{
      transform: scale(1)  rotate(0.999999turn);
      -webkit-transform: scale(1)  rotate(0.999999turn);
      -moz-transform: scale(1)  rotate(0.999999turn);
      -o-transform: scale(1)  rotate(0.999999turn);
    }
}