<style>
  @import url('https://googleapis.com');

  body {
    background-image: url("/rainbowstr.gif");
    background-repeat: repeat;
    background-size: auto;
    margin: 0;
    font-family: 'Special Elite', cursive;
    color: white;
    /* Prevent the whole page from scrolling, we scroll inner boxes instead */
    height: 100vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
  }

  /* --- HEADER (Fixed at top) --- */
  .banner-header {
    width: 100%;
    height: 120px;
    flex-shrink: 0; /* Stops banner from getting squished */
    background-image: url("Wii - Mii Channel - Plaza - Floor.png");
    overflow: hidden;
    position: relative;
    border-bottom: 3px solid #fff;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 20; /* Ensures banner stays on top */
  }

  .tile-grid {
    display: grid;
    grid-template-columns: repeat(20, 1fr); 
    gap: 8px;
    width: 100%; /* Fixed: Was 105%, caused breaking */
    position: absolute;
  }

  .tile {
    width: 40px;
    height: 40px;
    border-radius: 4px;
  }

  .banner-text {
    position: relative;
    z-index: 10;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.6);
    pointer-events: none;
  }

  /* --- SPLIT LAYOUT (Sidebar + Content) --- */
  .main-container {
    display: grid;
    grid-template-columns: 250px 1fr; /* 250px Sidebar, Rest for Content */
    height: 100%; /* Fills remaining space below banner */
    overflow: hidden;
  }

  /* --- LEFT SIDEBAR --- */
  .sidebar {
    background-image: url('pattern 121_gif.png'); /* PUT YOUR IMAGE HERE */
    background-repeat: repeat;
    border-right: 3px solid #fff;
    padding: 20px;
    overflow-y: auto; /* Scrollable */
    color: black; /* Dark text for better contrast on light tiles */
    text-shadow: 1px 1px 0px white;
  }

  /* --- MAIN CONTENT --- */
  .content-area {
    padding: 20px;
    overflow-y: auto; /* Scrollable */
  }

  .content-box {
    background: rgba(0, 0, 0, 0.4);
    padding: 20px;
    border-radius: 10px;
  }

  a { color: #87ceeb; text-decoration: none; }
  a:hover { text-decoration: underline; }
<style>