body {
    margin: 0;
    padding: 0;
    font-family: sans-serif;
}
.center-container {
    display: flex;
    justify-content: center; /* horizontal */
    align-items: center;     /* vertical */
    min-height: 100vh;
    width: 600px;
    padding: 20px;
    border: 1px solid #ccc;
    border-radius: 10px;
    box-shadow: 0px 0px 10px rgba(0,0,0,0.1);
    background-color: #fafafa;
}

.coin-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    justify-content: flex-start;
  }

  .coin-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    width: calc(50% - 1rem); /* Two items per row */
    box-sizing: border-box;
  }

  .coin-item input[type="number"] {
    width: 70px;
  }

  .divcontent {
    padding: 50px 50px;

  }
  .divcontenttext {
    font-size: 18px;
    font-family: sans-serif
  }