totonas

function theme_enqueue_styles() {
    wp_enqueue_style( 'parent-style', get_template_directory_uri() . '/style.css' );
    wp_enqueue_style( 'child-style',
                        get_stylesheet_directory_uri() . '/style.css',
                        array('parent-style'),
                        filemtime( get_theme_file_path( 'style.css' ) )
        );
}

totonas

<!-- fontawesome のCDNコード -->
<link rel="stylesheet"
href="https://use.fontawesome.com/
releases/v5.3.1/css/all.css"integrity=
"sha384-mzrmE5qonljUremFsqc01SB46JvROS7bZs3IO2EmfFsd15uHvIt+Y8vEf7N7fWAU"
crossorigin="anonymous">

totonas

/* 引用(blockquote)のデザイン*/
blockquote {
    position: relative;
    padding: 10px 15px 10px 60px;
    box-sizing: border-box;
    font-style: italic;
    background: #efefef;
    color: #555;
}