html, body {
    overflow: hidden;
  }
  
  div {
    position: absolute;
    width: 100vw;
    height: 100vh;
    top: 0;
    left: 0;
    background: linear-gradient(to right, white 50%, black 0);
    
  }
  
  div::before,
  div::after {
    content: "";
    display: block;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: #00f2;
    width: 70vmin;
    height: 70vmin;
    border-radius: 50%;
  }
  
  div::before {
    content: "Zafarbek";
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'Share Tech Mono', monospace, monospace;
    font-size: 13vmin;
    text-transform: uppercase;
    color: white;
    box-shadow: inset 0 0 0 2vmin white;
    background: black;
  }
  
  div::after {
    background: linear-gradient(to right, white 50%, black 0);
    mix-blend-mode: difference;
  }