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CSS

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JavaScript

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Babel includes JSX processing.

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HTML 

              
                <head>

<!-- Code snippet to create a "breathe" animation effect with a variable font -->
  <style> 
    /* The @font-face rule is used to define a custom font that you want to use on your webpage. Here 'TheFont' is a name we give to reference the font later in CSS. The 'src' property specifies the path to the font file, and 'format' specifies the font format. */
    @font-face {
    font-family: 'TheFont';
    
    /* Variable fonts like the one linked below allow for fine-tuned control over various font properties dynamically via CSS, such as weight ('wght'), width ('wdth'), etc. This link is where your web browser will download the font from. */
    /* Insert the link to your custom variable font */
    src: url("https://garet.typeforward.com/assets/fonts/shared/TFMixVF.woff2")
      format('woff2'); }


  body.breathe-animation {
    display: flex;
    align-items: center;
    justify-content: center;
    /* Change the Background color of the entire screen */
    background-color: black;
    /* 'vw' is a viewport-width unit, 'vh' is a viewport-height unit. 1vw equals 1% of the width of the viewport, and 1vh equals 1% of the height of the viewport. This allows the font size to scale dynamically with the window size. */
    height: 100vh;
  }

  .breathe-animation span {
    font-family: 'TheFont';
  
    /* The 'clamp()' function sets a flexible font size that will never go below a minimum value and never above a maximum value. The middle value is preferred, but it will shrink or grow based on the viewport dimensions. */
    /* Adjusts font size based on content width and viewport height */
    font-size: clamp(10vw, 20vw, 50vh);
  
    /* Change this to set the text color */
    color: white;
  
    /* Center text horizontally */
    text-align: center; 
  
    /* The 'animation' property applies the 'letter-breathe' keyframes to the element, making it animate over 3 seconds.'ease-in-out' makes the movement start and end slowly, and 'infinite' makes it repeat forever. */
    /* Controls the animation (3s is the duration) */
    animation: letter-breathe 3s ease-in-out infinite;
}
  
  /* Keyframes define the sequence of styles that an element will go through during an animation. */
  @keyframes letter-breathe {
   
    /* The 'from' and 'to' keyframes establish the initial and final states of the animation, respectively, using 'font-variation-settings'. This CSS property is used with variable fonts to adjust their weight ('wght'), width ('wdth'), etc., during the animation. */
    from,
    to {
      /* Starting weight; adjust the numbers according to your specific font */
      font-variation-settings: 'wght' 100;
    }

    /* At the midpoint (50%) of the animation, the font weight changes to 900. */
    50% {
      /* Ending weight; adjust the numbers according to your specific font */
      font-variation-settings: 'wght' 900;
    }
  }
  </style>
</head>

<body class="breathe-animation">
  <!-- Change this letter to test a different one -->
  <span>mix</span>
</body>
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