zumwalt

function is_tree( $pid ) {      // $pid = The ID of the page we're looking for pages underneath
    global $post;               // load details about this page

    if ( is_page($pid) )
        return true;            // we're at the page or at a sub page

    $anc = get_post_ancestors( $post->ID );
    foreach ( $anc as $ancestor ) {
        if( is_page() && $ancestor == $pid ) {
            return true;

zumwalt

@mixin calc($property, $expression) { 
  #{$property}: -moz-calc(#{$expression}); 
  #{$property}: -o-calc(#{$expression}); 
  #{$property}: -webkit-calc(#{$expression}); 
  #{$property}: calc(#{$expression}); 
}

zumwalt

//Breadcrumbs
  function sf_breadcrumbs() {
	 
	  $showOnHome = 0; // 1 - show breadcrumbs on the homepage, 0 - don't show
	  $delimiter = '>'; // delimiter between crumbs
	  $home = 'Home'; // text for the 'Home' link
	  $showCurrent = 1; // 1 - show current post/page title in breadcrumbs, 0 - don't show
	  $before = '<li class="active">'; // tag before the current crumb
	  $after = '</li>'; // tag after the current crumb
	 

zumwalt

function random_tax() {

  	$counter = 0;
    $max = 5; // Set max number of items here.
  	$cats ='';
    $categories=get_categories();
    $rand_keys = array_rand($categories, $max);
    foreach ($rand_keys as $key) {
    $cats .= $categories[$key]->term_id .',';
    }

zumwalt

<li>
<?php if(!get_field("content_1") && (!get_field("content_2")): ?>
 // Full width image code
<?php else: ?>
 // Regular image code
<?php endif; ?>
</li>

&& - both things