body
{
    display: flex;
}


.box
{
    position: relative;
    width: 390px;
    height: 370px;
    background: #fff;
    /* border-radius: 2%; */
    background-color: transparent; 
    border: none; 
}

.box .lines
{
    position: absolute;
    inset: 0;
    background: #FFFFFF;
    overflow: hidden;
    border-radius: 2%;
}

.box .lines::before
{
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 600px;
    height: 160px;
    border-radius: 2%;
    background: linear-gradient(transparent, #A741AD,  #D31973,  #F63E95, transparent);
    animation: animate 4s linear infinite;
}

@keyframes animate
{
    0%
    {
        transform: translate(-50%, -50%) rotate(0deg);
    }
    100%
    {
        transform: translate(-50%, -50%) rotate(360deg);
    }
}

.box .lines::after
{
    content: '';
    position: absolute;
    inset: 3px;
    background: #FFFFFF;
    border-radius: 2%;
}
@media (max-width: 900px) {
    .box
      {
          position: relative;
          width: 390px;
          height: 360px;
          background: #fff;
          border-radius: 2%;
          
      }
  }

@media (max-width: 600px) {
    
    .box {
        position: relative;
        width: 450px; /* Lebar kotak lebih lebar */
        height: 400px;
        background: #fff;
        border-radius: 2%;
    
    }
  }