* {
    box-sizing: border-box;
  }
  
  body {
    display: grid;
    place-items: center;
    min-height: 100vh;
  }
  
  
  
  h1 {
    --color-one: hsl(210 80% 50%);
    --color-two: hsl(320 100% 75%);
    --stretch-multiplier: 5;
    font-size: clamp(2rem, 14vmin, 8rem);
    font-family: 'Poppins', sans-serif;
    text-transform: uppercase;
    display: grid;
    line-height: 1;
  }
  
  
  
  .sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;  
  }
  
  
  
  [aria-hidden] {
    display: flex;
    gap: 0.02ch;
    align-items: center;
    color: black;
  }
  
  
  .stretch-o {
    height: 1.12ch;
    width: calc(var(--stretch) * 1.16ch);
    translate: 0 -0.01ch;
    border: 0.25ch solid black;
    border-radius: 1ch;
    transition: width 0.2s;
    position: relative;
  }
  
  h1 {
    --stretch: 1;
  }
  
  h1:hover {
    --stretch: var(--stretch-multiplier);
  }
  
  
  .stretch-o:after,
  .stretch-o:before {
    content: "";
    border: 0.25ch solid var(--color);
    position: absolute;
    inset: -0.25ch;
    border-radius: 1ch;
    opacity: calc(-1 + var(--stretch));
    transition: opacity 0.2s;
  }
  
  .stretch-o:before {
    --color: var(--color-one);
  }
  
  .stretch-o:after {
    --color: var(--color-two);
    mask:
      radial-gradient(
        circle at top left,
        black,
        transparent
      );
  }