styles.css

.frame {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 400px;
    height: 400px;
    margin-top: -200px;
    margin-left: -200px;
    border-radius: 2px;
    box-shadow: 1px 2px 10px 0px rgba(0,0,0,0.3);
    overflow: hidden;
  background: #12c2e9;  /* fallback for old browsers */
  background: -webkit-linear-gradient(165deg, #f64f59, #c471ed, #12c2e9);  /* Chrome 10-25, Safari 5.1-6 */
  background: linear-gradient(165deg, #f64f59, #c471ed, #12c2e9); /* W3C, IE 10+/ Edge, Firefox 16+, Chrome 26+, Opera 12+, Safari 7+ */
    font-size: 0;
  }
  
  .center {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%,-50%);
  }
  
  .line {
    width: 225px;
    height: 2px;
    background: #fff;
    margin: 15px 0;
    animation: line 0.6s ease-out both;
  }
  
  .text {
    stroke: #EA4C89;
    stroke-dasharray: 270;
    stroke-dashoffset: 0;
  }
  
  .a1 {
    fill: #fff; /* Initial color */
    stroke-width: 6;
    animation: fill 1.2s ease-in-out both, color-change 6s infinite;
  }
  
  .a2 {
     fill: none;
    stroke-width: 12;
    animation: fill 1.7s ease-in-out both, color-change 6s infinite;
  }
  
  .a3 {
    fill: none;
    stroke-width: 18;
    animation: fill 2.2s ease-in-out both, color-change 6s infinite;
  }
  
  @keyframes fill {
    from {
      stroke-dashoffset: 0;
    }
    to {
      stroke-dashoffset: 270;
    }
  }
  
  @keyframes color-change {
    0%, 25% {
      stroke: #EA4C89; /* First color */
    }
    25%, 50% {
      stroke: #5FC4FF; /* Second color */
    }
    50%, 75% {
      stroke: #FFD700; /* Third color */
    }
    75%, 100% {
      stroke: #32CD32; /* Fourth color */
    }
  }
  
  @keyframes line {
    from {
      transform: scaleX(0);
    }
    to {
      transform: scaleX(1);
    }
  }