main.css

*{
  padding: 0;
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
}
body{
  width: 100%;
  height: 100vh;
  background-color: rgba(230, 227, 215, 1);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}
.not_found_image{
  position: absolute;
  width: 100px;
  margin-left: -3em;
  margin-top: -41px;
}
.gear{
  width: 30px;
  position: absolute;
  transform: translateX(90px);
  animation-name: up_down;
  animation-iteration-count: infinite;
  animation-duration: 1.5s;
}
@keyframes up_down{
  25% {margin-top: -2em;}
  100% {}
}
.text_info{
  text-align: center;
  position: absolute;
  margin-bottom: -20px;
  z-index: -1;
  color: #0F2A49;
}
.text_info .not_text{
  font-size: 5em;
}
#back{
  font-size: 10px
}
h5{
  font-weight: 200;
}