@import url('https://fonts.googleapis.com/css?family=Poppins:400,500,600,700&display=swap');
*{
  margin: 0;
  padding: 0;
  outline: none;
  box-sizing: border-box;
  font-family: 'Poppins', sans-serif;
}
body{
  height: 100vh;
  background: -webkit-repeating-linear-gradient(#e66465, #9198e5);
  background-size: 400%;
}
#error{
  position: absolute;
  top: 10%;
  left: 15%;
  right: 15%;
  bottom: 10%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #fff;
  box-shadow: 0px 5px 10px rgba(0,0,0,0.1);
}
#error .content-box{
  max-width: 600px;
  text-align: center;
}
.content-box h2.header{
  font-size: 18vw;
  line-height: 1em;
  position: relative;
}
.content-box h2.header:after{
  position: absolute;
  content: attr(data-text);
  top: 0;
  left: 0;
  right: 0;
  background: -webkit-repeating-linear-gradient(-45deg, #2485c6, #012f4e, #9426c0, #d25c4f, #9542b6, #579cce, #b038e0);
  background-size: 400%;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  text-shadow: 1px 1px 2px rgba(255,255,255,0.25);
  animation: animate 10s ease-in-out infinite;
}
.content-box h4{
    font-size: 1.5em;
    margin-bottom: 20px;
    text-transform: uppercase;
    color: #000;
    font-size: 2em;
    max-width: 600px;
    position: relative;
  }
  .content-box h4:after{
    position: absolute;
    content: attr(data-text);
    top: 0;
    left: 0;
    right: 0;
    text-shadow: 1px 1px 2px rgba(181, 144, 144, 0.4);
    background-clip: text;
    -webkit-backgorund-clip:text;
    -webkit-text-fill-color: transparent;
  }
  .content-box p{
    font-size: 1.2em;
    color: #0d0d0d;
  }
  .content-box .btns{
    margin: 25px 0;
    display: inline-flex;
  }
  .content-box .btns a{
    display: inline-block;
    margin: 0 10px;
    text-decoration: none;
    border: 2px solid rgb(197, 143, 43);
    color: blue;
    font-weight: 500;
    padding: 10px 25px;
    border-radius: 25px;
    text-transform: uppercase;
    transition: all 0.3s ease;
  }
  .content-box .btns a:hover{
    background: blueviolet;
    color: #fff;
  }
@keyframes animate {
  0%{
    background-position: 0 0;
  }
  25%{
    background-position: 100% 0;
  }
  50%{
    background-position: 100% 100%;
  }
  75%{
    background-position: 0% 100%;
  }
  100%{
    background-position: 0% 0%;
  }
}