body {
  display: flex;
  flex-flow: row wrap;
  align-content: center;
  justify-content: center;
}

div {
  width: 100%;
  text-align: center;
}

.number {
  background: #fff;
  position: relative;
  font: 900 30vmin "Consolas";
  letter-spacing: 5vmin;
  text-shadow: 2px -1px 0 #000, 4px -2px 0 #0a0a0a, 6px -3px 0 #0f0f0f,
    8px -4px 0 #141414, 10px -5px 0 #1a1a1a, 12px -6px 0 #1f1f1f,
    14px -7px 0 #242424, 16px -8px 0 #292929;
}
.number::before {
  background-color: #673ab7;
  background-image: radial-gradient(
      closest-side at 50% 50%,
      #3290f4 100%,
      rgba(0, 0, 0, 0)
    ),
    radial-gradient(closest-side at 50% 50%, #df2c10 100%, rgba(0, 0, 0, 0));
  background-repeat: repeat-x;
  background-size: 40vmin 40vmin;
  background-position: -100vmin 20vmin, 100vmin -25vmin;
  width: 100%;
  height: 100%;
  mix-blend-mode: screen;
  -webkit-animation: moving 6s linear infinite both;
  animation: moving 6s linear infinite both;
  display: block;
  position: absolute;
  content: "";
}
@-webkit-keyframes moving {
  to {
    background-position: 100vmin 20vmin, -100vmin -25vmin;
  }
}
@keyframes moving {
  to {
    background-position: 100vmin 20vmin, -100vmin -25vmin;
  }
}

.text {
  font: 400 5vmin "Courgette";
}
.text span {
  font-size: 10vmin;
}

/*======================
    404 page
=======================*/

.page_404 {
  background: #fff;
  font-family: "Arvo", serif;
}

.page_404 img {
  width: 120%;
}

.four_zero_four_bg {
  background-image: url(https://cdn.dribbble.com/users/285475/screenshots/2083086/dribbble_1.gif);
  height: 500px;
  background-position: center;
}

.four_zero_four_bg h1 {
  font-size: 80px;
}

.four_zero_four_bg h3 {
  font-size: 80px;
}

.link_404 {
  color: #fff !important;
  padding: 10px 20px;
  background: #39ac31;
  margin: 20px 0;
  display: inline-block;
}
.contant_box_404 {
  margin-top: -50px;
}