@font-face {
    font-family: 'IBM';
    src: url('../fonts/Web437_IBM_BIOS.woff') format('woff');
    font-weight: normal;
    font-style: normal;
    }
    
    @media screen and (min-width: 1200px) {
    body {
        margin-left: 20rem;
        margin-right: 20rem;
    }
  }
    @media screen and (min-width: 600px) {
      body {
          margin-left: 5em;
          margin-right: 5em;
      }
  }
    @keyframes textflicker {
    from {
      text-shadow: 1px 0 0 #000000, -2px 0 0 #000000;
    }
    to {
      text-shadow: 2px 0.5px 2px #6d0000, -1px -0.5px 1px #ff0000;
    }
}    
 html { background: black;
         padding: 1px ;  
         color: #ff0303a9;
         font-size: 1em;
         line-height: 1;
         text-shadow: 0.06rem 0 0.06rem #fbff00, -0.125rem 0 0.06rem #75fa69;
         letter-spacing: 0.125em;
         animation-duration: 0.01s;
         animation-name: textflicker;
         animation-iteration-count: infinite;
         animation-direction: alternate;
         font-family: 'IBM', sans-serif;
        font-weight: 100;

  }    
  a
  {
    color: red;
  }
  
  h1
  {
    background-color: #ff0303a9;
    color: #000000a9;
    font-size: large;
    padding: 5px 5px;
    text-align: center;
  }
  body
  {     
    background-color: #000000;
    color: #ff0303a9;
    font-family: 'IBM', sans-serif;
  }
  
  nav a:hover{
    padding: 11px 0px 5px;
    background-color: #ff0303a9;
    color:  #000000a9;
    text-decoration: none;
  }
  p
  {
    font-size: small;
    
  }
  .alineado{
    display: flex;
    justify-content:space-between;
  }
  .stamp{
    width: 88px;
    height: 33px;
  }
  
  .scanlines {
    overflow: hidden;
    position: relative;
}
.scanlines:before,
.scanlines:after {
    display: block;
    pointer-events: none;
    content: "";
    position: absolute;
}
.scanlines:before {
    width: 100%;
    height: 2px;
    z-index: 2147483649;
    background: rgba(0, 0, 0, 0.3);
    opacity: 0.75;
    animation: scanline 6s linear infinite;
}
.scanlines:after {
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    z-index: 2147483648;
    background: linear-gradient(
        to bottom,
        transparent 50%,
        rgba(0, 0, 0, 0.3) 51%
    );
    background-size: 100% 4px;
    animation: scanlines 1s steps(60) infinite;
}

/* ANIMATE UNIQUE SCANLINE */
@keyframes scanline {
    0% {
        transform: translate3d(0, 200000%, 0);
    }
}
@keyframes scanlines {
    0% {
        background-position: 0 50%;
    }
}
div {
    margin: 0;
    padding: 0;
}
div.scanlines {
    position: absolute;
}
div .jpg {
    width: 100vw;
    height: 100vh;
    border: none;
}
.jpg {
    background: url("https://upload.wikimedia.org/wikipedia/commons/thumb/a/aa/Philips_PM5544.svg/800px-Philips_PM5544.svg.png")
        no-repeat;
    background-size: cover;
}