body {
    background: #3b82f6;
  }
  h1 {
    position: relative;
    text-align: center;
    color: #ffffff;
    font-size: 50px;
    font-family: "Sora", serif;
  }
  
  h3 {
    font-family: 'Sora', sans-serif;
    font-weight: 500;
    text-align: center;
    font-size: 18px;
    color: #ffffff;
  }
  .frame {
    width: 90%;
    margin: 40px auto;
    text-align: center;
    height: 100%;
  }
  button {
    margin: 20px;
  }
  .custom-btn {
    width: 130px;
    height: 40px;
    color: #fff;
    border-radius: 5px;
    padding: 10px 25px;
    font-family: 'Lato', sans-serif;
    font-weight: 500;
    background: transparent;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    display: inline-block;
     box-shadow:inset 2px 2px 2px 0px rgba(255,255,255,.5),
     7px 7px 20px 0px rgba(0,0,0,.1),
     4px 4px 5px 0px rgba(0,0,0,.1);
    outline: none;
  }
  

  
  
  /* 12 */
  .btn-12{
    position: relative;
    right: 20px;
    bottom: 20px;
    border:none;
    box-shadow: none;
    width: 130px;
    height: 40px;
    line-height: 42px;
    -webkit-perspective: 230px;
    perspective: 230px;
  }
  .btn-12 span {
    background: rgb(0,172,238);
  background: linear-gradient(0deg, rgba(0,172,238,1) 0%, rgba(2,126,251,1) 100%);
    display: block;
    position: absolute;
    width: 130px;
    height: 40px;
    box-shadow:inset 2px 2px 2px 0px rgba(255,255,255,.5),
     7px 7px 20px 0px rgba(0,0,0,.1),
     4px 4px 5px 0px rgba(0,0,0,.1);
    border-radius: 5px;
    margin:0;
    text-align: center;
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
    -webkit-transition: all .3s;
    transition: all .3s;
  }
  .btn-12 span:nth-child(1) {
    box-shadow:
     -7px -7px 20px 0px #fff9,
     -4px -4px 5px 0px #fff9,
     7px 7px 20px 0px #0002,
     4px 4px 5px 0px #0001;
    -webkit-transform: rotateX(90deg);
    -moz-transform: rotateX(90deg);
    transform: rotateX(90deg);
    -webkit-transform-origin: 50% 50% -20px;
    -moz-transform-origin: 50% 50% -20px;
    transform-origin: 50% 50% -20px;
  }
  .btn-12 span:nth-child(2) {
    -webkit-transform: rotateX(0deg);
    -moz-transform: rotateX(0deg);
    transform: rotateX(0deg);
    -webkit-transform-origin: 50% 50% -20px;
    -moz-transform-origin: 50% 50% -20px;
    transform-origin: 50% 50% -20px;
  }
  .btn-12:hover span:nth-child(1) {
    box-shadow:inset 2px 2px 2px 0px rgba(255,255,255,.5),
     7px 7px 20px 0px rgba(0,0,0,.1),
     4px 4px 5px 0px rgba(0,0,0,.1);
    -webkit-transform: rotateX(0deg);
    -moz-transform: rotateX(0deg);
    transform: rotateX(0deg);
  }
  .btn-12:hover span:nth-child(2) {
    box-shadow:inset 2px 2px 2px 0px rgba(255,255,255,.5),
     7px 7px 20px 0px rgba(0,0,0,.1),
     4px 4px 5px 0px rgba(0,0,0,.1);
   color: transparent;
    -webkit-transform: rotateX(-90deg);
    -moz-transform: rotateX(-90deg);
    transform: rotateX(-90deg);
  }



/* HTML: <div class="loader"></div> */
.loader {
    width: 70px;
    height: 50px;
    margin: auto;
    box-sizing: border-box;
    background:
      conic-gradient(from 135deg at top,#0000, #4757e2 1deg 90deg,#0000 91deg) right -20px bottom 8px/18px 9px,
      linear-gradient(#2081ff 0 0) bottom/100% 8px,
      #ffffff;
    background-repeat: no-repeat;
    border-bottom: 8px solid #ffffff;
    position: relative;
    animation: l7-0 2s infinite linear;
  }
  .loader::before {
    content: "";
    position: absolute;
    width: 10px;
    height: 14px;
    background: lightblue;
    left: 10px;
    animation: l7-1 2s infinite cubic-bezier(0,200,1,200);
  }
  @keyframes l7-0{
    100% { background-position: left -20px bottom 8px,bottom}
  }
  @keyframes l7-1{
    0%,50%   {bottom: 8px}
    90%,100% {bottom: 8.1px}
  }