Fire Animation CSS

/* latin */
@font-face {
  font-family: 'Tangerine';
  font-style: normal;
  font-weight: 400;
  src: local('Tangerine Regular'), local('Tangerine-Regular'), url(https://fonts.gstatic.com/s/tangerine/v11/IurY6Y5j_oScZZow4VOxCZZM.woff2) format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
.font-effect-shadow-multiple {
  text-shadow: .04em .04em 0 #fff,.08em .08em 0 #aaa;
  -webkit-text-shadow: .04em .04em 0 #fff, .08em .08em 0 #aaa;
}
@-webkit-keyframes font-effect-fire-animation-keyframes {
  0% {
    text-shadow: 0 -0.05em 0.2em #FFF, 0.01em -0.02em 0.15em #FE0, 0.01em -0.05em 0.15em #FC0, 0.02em -0.15em 0.2em #F90, 0.04em -0.20em 0.3em #F70,0.05em -0.25em 0.4em #F70, 0.06em -0.2em 0.9em #F50, 0.1em -0.1em 1.0em #F40;
  }
  25% {
    text-shadow: 0 -0.05em 0.2em #FFF, 0 -0.05em 0.17em #FE0, 0.04em -0.12em 0.22em #FC0, 0.04em -0.13em 0.27em #F90, 0.05em -0.23em 0.33em #F70, 0.07em -0.28em 0.47em #F70, 0.1em -0.3em 0.8em #F50, 0.1em -0.3em 0.9em #F40;
  }
  50% {    text-shadow: 0 -0.05em 0.2em #FFF, 0.01em -0.02em 0.15em #FE0, 0.01em -0.05em 0.15em #FC0, 0.02em -0.15em 0.2em #F90, 0.04em -0.20em 0.3em #F70,0.05em -0.25em 0.4em #F70, 0.06em -0.2em 0.9em #F50, 0.1em -0.1em 1.0em #F40;
  }
  75% {
    text-shadow: 0 -0.05em 0.2em #FFF, 0 -0.06em 0.18em #FE0, 0.05em -0.15em 0.23em #FC0, 0.05em -0.15em 0.3em #F90, 0.07em -0.25em 0.4em #F70, 0.09em -0.3em 0.5em #F70, 0.1em -0.3em 0.9em #F50, 0.1em -0.3em 1.0em #F40;
  }
  100% {
    text-shadow: 0 -0.05em 0.2em #FFF, 0.01em -0.02em 0.15em #FE0, 0.01em -0.05em 0.15em #FC0, 0.02em -0.15em 0.2em #F90, 0.04em -0.20em 0.3em #F70,0.05em -0.25em 0.4em #F70, 0.06em -0.2em 0.9em #F50, 0.1em -0.1em 1.0em #F40;
  }
}
.font-effect-fire-animation {
  -webkit-animation-duration:0.8s;
  -webkit-animation-name:font-effect-fire-animation-keyframes;
  -webkit-animation-iteration-count:infinite;
  -webkit-animation-direction:alternate;
  color: #ffe;
}