body { 
background: rgb(23,37,42);
background: -moz-linear-gradient(79deg, rgba(23,37,42,1) 0%, rgba(43,122,120,1) 22%, rgba(58,175,169,1) 59%, rgba(222,242,241,1) 91%, rgba(254,255,255,1) 100%);
background: -webkit-linear-gradient(79deg, rgba(23,37,42,1) 0%, rgba(43,122,120,1) 22%, rgba(58,175,169,1) 59%, rgba(222,242,241,1) 91%, rgba(254,255,255,1) 100%);
background: linear-gradient(79deg, rgba(23,37,42,1) 0%, rgba(43,122,120,1) 22%, rgba(58,175,169,1) 59%, rgba(222,242,241,1) 91%, rgba(254,255,255,1) 100%);
filter: progid:DXImageTransform.Microsoft.gradient(startColorstr="#17252a",endColorstr="#feffff",GradientType=1);
background-size: 100% 600%
  }

  
  .container {
    text-align: center;
    margin-top: 100px;
    color: #fff;
  }
  .card {
    background: rgba(255, 255, 255, 0.6);
    box-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.37);
    backdrop-filter: blur(40px);
  }