Three-Column Grid With Subgrid

by Arjan Haverkamp

HTML

<div class="dashboard-container">
      <div class="glass-widget">
        <div class="widget-header">
          <div class="widget-title">Revenue</div>
          <div class="widget-icon">💰</div>
        </div>
        <div class="widget-value">$45,280</div>
        <div class="widget-description">
          Monthly revenue increased by 12% compared to last month
        </div>
        <div class="progress-bar">
          <div class="progress-fill" style="width: 75%"></div>
        </div>
      </div>

      <div class="glass-widget">
        <div class="widget-header">
          <div class="widget-title">Active Users</div>
          <div class="widget-icon">👥</div>
        </div>
        <div class="widget-value">2,847</div>
        <div class="widget-description">
          Users currently online and engaging with your platform
        </div>
        <div class="progress-bar">
          <div class="progress-fill" style="width: 68%"></div>
        </div>
      </div>

      <div class="glass-widget">
        <div class="widget-header">
          <div class="widget-title">Performance</div>
          <div class="widget-icon">📊</div>
        </div>
        <div class="stats-grid">
          <div class="stat-item">
            <div class="stat-number">98.5%</div>
            <div class="stat-label">Uptime</div>
          </div>
          <div class="stat-item">
            <div class="stat-number">1.2s</div>
            <div class="stat-label">Load Time</div>
          </div>
          <div class="stat-item">
            <div class="stat-number">156</div>
            <div class="stat-label">Requests/min</div>
          </div>
          <div class="stat-item">
            <div class="stat-number">99.9%</div>
            <div class="stat-label">Success Rate</div>
          </div>
        </div>
      </div>

      <div class="glass-widget">
        <div class="widget-header">
          <div...

CSS

/* @source: https://javascript.plainenglish.io/youve-seen-this-design-on-apple-here-s-how-to-build-it-yourself-with-css-1fc9544f027c */
body {
  font-family: "Arial", sans-serif;
  background: radial-gradient(
      circle at 20% 80%,
      #120078 0%,
      transparent 50%
    ),
    radial-gradient(circle at 80% 20%, #4c1d95 0%, transparent 50%),
    radial-gradient(circle at 40% 40%, #1e40af 0%, transparent 50%),
    linear-gradient(135deg, #0f0f23, #1a1a2e);
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 2rem;
}

.dashboard-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  max-width: 1000px;
  width: 100%;
}

.glass-widget {
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-radius: 20px;
  padding: 2rem;
  border: 1px solid rgba(255, 255, 255, 0.15);
  box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.3);
  color: white;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.glass-widget::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.3),
    transparent
  );
}

.glass-widget:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 40px 0 rgba(0, 0, 0, 0.4);
  background: rgba(255, 255, 255, 0.12);
}

.widget-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
}

.widget-title {
  font-size: 1.2rem;
  font-weight: 600;
  opacity: 0.9;
}

.widget-icon {
  width: 40px;
  height: 40px;
  background: rgba(255, 255, 255, 0.15);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
}

.widget-value {
  font-size: 2.5rem;
  font-weight: 700;
 ...