* {
    margin: 0;
    padding: 0;
    transition-duration: 0.1s;
  }
  
  html, body {
    font-family: arial;
    background: #333;
    background: url(https://unsplash.com/photos/snpFW42KR8I/download);
    background-size: 150vw;
    background-position: 50%;
    height: 100%;
    z-index: -10;
    --main: #528e;
    --border-width: .2rem;
  }
  
  .container {
    width: 1000px;
    height: auto;
    position: absolute;
    top: 40%;
    left: 50%;
    transform: translateY(-50%) translateX(-50%);
    color: white;
    z-index: 1;
  }
  
  .avatar {
    border: white solid var(--border-width);
    border-radius: 5rem;
    height: 8rem;
    width: 8rem;
    overflow: hidden;
    margin: 1rem auto;
  }
  .avatar .example {
    background: var(--main);
    height: 8rem;
    background: url(https://assets.codepen.io/658919/internal/avatars/users/default.png?format=auto&version=1688775005&width=160&height=160);
    background-size: 100%;
    background-repeat: no-repeat;
  }
  
  .name {
    font-size: 2rem;
    text-align: center;
    margin-bottom: 5rem;
  }
  
  .group-blur {
    --radius: .8rem;
    backdrop-filter: blur(0.8rem);
    padding: 1.5rem;
    margin: 3rem;
    border-radius: var(--radius);
  }
  
  .group {
    padding: 1rem;
    position: relative;
    --triangle-offset-top: -6px;
    --triangle-offset-left: 50%;
    --triangle-width: 10rem;
    position: relative;
    appearance: none;
    border: 0;
    color: #f8f9fa;
    background-color: transparent;
    padding: 1em 1.5em;
    text-transform: uppercase;
    font-weight: 700;
    letter-spacing: 0.04em;
  }
  .group:before {
    content: " ";
    border: solid white var(--border-width);
    border-radius: var(--radius);
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    z-index: 1;
    -webkit-mask-image: -webkit-linear-gradient(black, black), url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 20 20" preserveAspectRatio="none"><polygon points="0 0 0 20 20 20 20 0 0 0"/></svg>');
    -webkit-mask-size: 100% 100%, var(--triangle-width) 50px;
    -webkit-mask-position: top left, var(--triangle-offset-left) var(--triangle-offset-top);
    -webkit-mask-repeat: no-repeat;
    -webkit-mask-composite: exclude;
    -webkit-mask-composite: xor;
    transition: all 0.2s;
  }
  
  header {
    position: absolute;
    top: -10px;
    left: 0;
    right: 0;
    margin-left: auto;
    margin-right: auto;
    text-align: center;
    z-index: 50;
  }
  
  button {
    width: 100%;
    background: var(--main);
    margin: 5px;
    border: none;
    border-radius: 1rem;
    height: 3rem;
    color: white;
    cursor: pointer;
    position: relative;
    z-index: 5;
  }
  button:hover {
    scale: 1.01;
  }
  button:active {
    scale: 0.99;
  }