Advanced Flexbox

Complex alignments, wrapping, gaps, and flex patterns.

Overview

Flexbox handles one-dimensional layouts with powerful alignment.

Key Concepts

• Alignment — justify-content, align-items
• Wrapping — flex-wrap for multi-line
• Gap — Space between items
• Order — Visual ordering
• Flex Patterns — Common layout patterns

Code Examples

/* Centering */
.center-everything {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
}

/* Space between */
.space-between {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

/* Sticky footer */
.page {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.page-content {
  flex: 1;
}

/* Card grid with equal heights */
.card-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.card {
  flex: 1 1 300px;
  display: flex;
  flex-direction: column;
}

.card-content {
  flex: 1;
}

/* Holy grail layout */
.layout {
  display: flex;
  min-height: 100vh;
}

.sidebar-left {
  flex: 0 0 250px;
}

.sidebar-right {
  flex: 0 0 250px;
}

.main {
  flex: 1;
}

/* Navigation */
.nav {
  display: flex;
  gap: 2rem;
  padding: 1rem;
}

.nav-link {
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary);
  transition: width 0.3s ease;
}

.nav-link:hover::after {
  width: 100%;
}

/* Form layout */
.form-row {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.form-group {
  flex: 1 1 200px;
}

/* Media object */
.media {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}

.media-image {
  flex-shrink: 0;
}

.media-content {
  flex: 1;
}

Practice

Build a complex navigation and card layout using advanced Flexbox.