<style>
  * {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }

  .banner_slider {
    position: relative;
    width: 100%;
    height: 100vh;
    overflow: hidden;
  }

  .slides {
    display: flex;
    transition: transform 0.5s ease-in-out;
    height: 100%;
  }

  .slide {
    min-width: 100%;
    height: 100vh;
    background-size: cover;
    background-position: center;
  }

  /* Arrows */
  .arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    font-size: 2rem;
    color: white;
    background: rgba(0,0,0,0.4);
    padding: 10px;
    cursor: pointer;
    z-index: 10;
    border-radius: 50%;
  }

  .arrow.left {
    left: 20px;
  }

  .arrow.right {
    right: 20px;
  }

  @media (max-width: 768px) {
    .arrow {
      font-size: 1.5rem;
      padding: 8px;
    }
  }
</style>