CSS Reset / Normalize

*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

Layout Structure (Flexbox)

.container {
    width: 1200px;
    margin: 0 auto;
}

.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

Grid Layout Example

.post-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

Typography Precision

Font Loading

function basic_theme_fonts() {
    wp_enqueue_style(
        'google-fonts',
        'https://fonts.googleapis.com/css2?family=Inter:wght@400;600;700&display=swap',
        false
    );
}
add_action('wp_enqueue_scripts', 'basic_theme_fonts');

Typography System

body {
    font-family: 'Inter', sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: #222;
}

h1 { font-size: 40px; font-weight: 700; }
h2 { font-size: 32px; font-weight: 600; }
p  { margin-bottom: 20px; }

header.php

<!DOCTYPE html>
<html <?php language_attributes(); ?>>
<head>
    <meta charset="<?php bloginfo('charset'); ?>">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <?php wp_head(); ?>
</head>
<body <?php body_class(); ?>>

<header class="site-header">
    <div class="container">
        <h1 class="logo">
            <a href="<?php echo home_url(); ?>">
                <?php bloginfo('name'); ?>
            </a>
        </h1>
        <?php
        wp_nav_menu(array(
            'theme_location' => 'primary',
            'container' => 'nav',
            'menu_class' => 'main-menu'
        ));
        ?>
    </div>
</header>

Register Menu

function basic_theme_setup() {
    register_nav_menus(array(
        'primary' => 'Primary Menu'
    ));
}
add_action('after_setup_theme', 'basic_theme_setup');

Responsive Design

Viewport Meta

<meta name="viewport" content="width=device-width, initial-scale=1.0">

Media Queries

@media (max-width: 992px) {
    .container {
        width: 90%;
    }

    .post-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 600px) {
    .post-grid {
        grid-template-columns: 1fr;
    }
}

Custom Single Template

<?php get_header(); ?>

<main class="single-post container">
<?php
if ( have_posts() ) :
    while ( have_posts() ) : the_post(); ?>
        <h1><?php the_title(); ?></h1>
        <?php the_content(); ?>
    <?php endwhile;
endif;
?>
</main>

<?php get_footer(); ?>