functions-custom.php

<?php

// Register Custom Post Type
function init_function()
{

}
add_action( 'init', 'init_function', 0 );


// Enqueue script and style
function custom_enqueue()
{
    wp_enqueue_script( 'google-maps-api', 'https://maps.googleapis.com/maps/api/js?libraries=places' );
    wp_enqueue_style( 'main-style', get_template_directory_uri().'/css/screen.css', array(), '2013-07-18' );
}
add_action( 'wp_enqueue_scripts', 'custom_enqueue' );