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HTML 

              
                <div class="options">
  <div>
    <p>FLEX DIRECTION</p>
    <select class="field" id="direction">
      <option value="0">ROW</option>
      <option value="1">COLUMN</option>
      <option value="2">ROW REVERSE</option>
      <option value="3">COLUMN REVERSE</option>
    </select>
  </div>
  <div>
    <p>ALIGN ITEMS</p>
    <select class="field2" id="align">
      <option value="0">CENTER</option>
      <option value="1">END</option>
      <option value="2">FLEX-END</option>
      <option value="3">FLEX-START</option>
    </select>
  </div>
  <div>
    <p>JUSTIFY CONTENT</p>
    <select class="field3" id="justify">
      <option value="0">CENTER</option>
      <option value="1">SPACE-AROUND</option>
      <option value="2">FLEX-START</option>
      <option value="3">FLEX-END</option>
    </select>
  </div>
</div>
<div class="container">
  <div class="text-effect">
    <span>c</span>
    <span>o</span>
    <span>d</span>
    <span>e</span>
    <span>p</span>
    <span>e</span>
    <span>n</span>
  </div>
</div>
!

CSS 

              
                body {
  background-color: #f2f8ff;
  font-family: sans-serif;
}
.container {
  height: 83vh;
  display: flex;
}
.options {
  display: flex;
  flex-direction: column;
  justify-content: space-around;
  margin-bottom: 1.5rem;
  @media only screen and (min-width: 460px) {
    flex-direction: row;
  }
  select {
    padding-left: 10px;
    height: 34px;
    width: 100%;
    background: #fff;
    border-radius: 5px;
    border: 0;
    box-shadow: 0px 10px 30px -8px rgba(6, 33, 62, 0.5);
  }
}
.text-effect {
  border: 3px solid #fff;
  border-radius: 12px;
  display: flex;
  height: 90%;
  width: 98%;
  justify-content: center;
  align-items: center;
  font-family: "Nunito", sans-serif;
  text-align: center;
  text-transform: uppercase;
  margin: 0 auto;
}
.text-effect span {
  color: transparent;
  font-size: 75px;
  text-shadow: 0 0 2px rgba(204, 208, 212, 0.9), 0 15px 25px rgba(0, 0, 0, 0.3),
    0 -2px 3px rgba(0, 0, 0, 0.1), 0 -5px 10px rgba(255, 255, 255, 0.5),
    0 5px 10px rgba(0, 0, 0, 0.3), 0 3px 4px rgba(255, 255, 255, 0.2),
    0 0 20px rgba(255, 255, 255, 0.45);
  display: inline-block;
  animation: animate 0.85s ease-in-out infinite alternate;
}

$letters: 7; //Define number of letters in animation - including spaces
$timing: 0.15s;//Delay between letters

//Sets timing differntly for each letter
@while $letters > 0 {
  .text-effect span:nth-child(#{$letters}) {
    animation-delay: $timing * $letters;
  }
  $letters: $letters - 1;
}

@keyframes animate {
  to {
    text-shadow: 0 0 2px rgba(204, 208, 212, 0.2), 0 0 3px rgba(0, 0, 0, 0.02),
      0 0 0 rgba(0, 0, 0, 0), 0 0 0 rgba(255, 255, 255, 0),
      0 0 0 rgba(0, 0, 0, 0), 0 0 0 rgba(255, 255, 255, 0),
      0 0 0 rgba(255, 255, 255, 0);
  }
}

@media only screen and (max-width: 990px) {
  .text-effect span {
    font-size: 60px;
  }
}
@media only screen and (max-width: 767px) {
  .text-effect span {
    font-size: 50px;
  }
}
@media only screen and (max-width: 479px) {
  .text-effect span {
    font-size: 55px;
  }
}
@media only screen and (max-width: 359px) {
  .text-effect span {
    font-size: 40px;
  }
}
!

JS 

              
                $(document).ready(function () {
  const arrayDir = ["row", "column", "row-reverse", "column-reverse"];
  const arrayAli = ["center", "end", "flex-end", "flex-start"];
  const arrayJus = ["center", "space-around", "flex-start", "flex-end"];

  //direction
  $(".field").change(function () {
    for (i = 0; i < 4; i++) {
      if ($(this).val() == i) {
        $(".text-effect").css("flex-direction", arrayDir[i]);
      }
    }
  });

  //align
  $(".field2").change(function () {
    for (i = 0; i < 4; i++) {
      if ($(this).val() == i) {
        $(".text-effect").css("align-items", arrayAli[i]);
      }
    }
  });

  //justify
  $(".field3").change(function () {
    for (i = 0; i < 4; i++) {
      if ($(this).val() == i) {
        $(".text-effect").css("justify-content", arrayJus[i]);
      }
    }
  });
});
!
999px

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