doitinpoland.com/wp-content/plugins/em-helper-plugin/includes/shortcodes/em_button.php

<?php
/*
 * Team Section
 * Author: themetags
 * Author URI: http://webitkurigram.com
 * Version: 1.0
 * ======================================================
 */

/**
 * =======================================================
 *    KC Shortcode Map
 * =======================================================
 */

add_action('init', 'cyber_custom_button'); 
if(!function_exists('cyber_custom_button')):
	function cyber_custom_button(){
		if(function_exists('kc_add_map')):
		kc_add_map(
		    array(
		'cyber_custom_button'	=> array(
			'name'			=> __( 'Cyber Custom Button', 'cyber' ),
			'title'			=> 'Button Settings',
			'icon'			=> 'kc-icon-feature-box',
			'category'		=> 'cyber',
			'wrapper_class'	=> 'clearfix',
			'description'	=> __( 'Display Button style.', 'cyber' ),
			'params'		=> array(
				'general'	=> array(

					array(
						'name'		=> 'button_text',
						'label'		=> __( 'Text Button', 'cyber' ),
						'type'		=> 'text',
						'value'		=> __( 'Read More', 'cyber' )
					),
					array(
						'name'		=> 'button_link',
						'label'		=> __( 'Link Button', 'cyber' ),
						'type'		=> 'link',
						'value'		=> '#'
					),
					array(
							'type'			=> 'radio_image',
							'label'			=> __( 'Select Feature Style', 'cyber' ),
							'name'			=> 'layout',
							'admin_label'	=> true,
							'options'		=> array(
								'1'	=> EM40_EXTENSION_URI . 'asstes/images/blog/layout1.jpg',
								'2'	=> EM40_EXTENSION_URI . 'asstes/images/blog/layout2.jpg',
								'3'	=> EM40_EXTENSION_URI . 'asstes/images/blog/layout3.jpg',
							),
							'description'	=> __( 'Select Your Button Style', 'cyber' ),
							'value'			=> '1'
						),

					array(
						'type'			=> 'text',
						'label'			=> __( 'Custom class', 'cyber' ),
						'name'			=> 'custom_class',
						'description'	=> __( 'Enter extra custom class', 'cyber' )
					)
				),
				'styling'	=> array(
					array(
						'name'		=> 'css_custom',
						'type'		=> 'css',
						'options'	=> array(
							array(
								"screens" => "any,1024,999,767,479",
								'Button' => array(
									array('property' => 'color', 'label' => 'Color', 'selector' => '.cyber-button a'),
									array('property' => 'color', 'label' => 'Hover Color', 'selector' => '+:hover .cyber-button a'),
									array('property' => 'background-color', 'label' => 'BG Color', 'selector' => '.cyber-button a'),
									array('property' => 'background-color', 'label' => 'BG Color Hover', 'selector' => '+:hover .cyber-button a'),
									array('property' => 'border', 'label' => 'Border', 'selector' => '.cyber-button a'),
									array('property' => 'border-color', 'label' => 'Hover Border', 'selector' => '+:hover .cyber-button a'),
									array('property' => 'border-radius', 'label' => 'Border Radius', 'selector' => '.cyber-button a'),
									array('property' => 'font-size', 'label' => 'Font Size', 'selector' => '.cyber-button a'),									
									array('property' => 'height', 'label' => 'Height', 'selector' => '.cyber-button a'),
									array('property' => 'width', 'label' => 'Width', 'selector' => '.cyber-button a'),
									array('property' => 'line-height', 'label' => 'Line Height', 'selector' => '.cyber-button a'),
									array('property' => 'padding', 'label' => 'Padding', 'selector' => '.cyber-button a'),
									array('property' => 'margin', 'label' => 'Margin', 'selector' => '.cyber-button a')
								),								
								'Box'	=> array(
									array('property' => 'text-align', 'label' => 'Box Text Align'),
									array('property' => 'box-shadow', 'label' => 'Box Shadow', 'selector' => '+.cyber-custom-buttons'),
									array('property' => 'box-shadow', 'label' => 'Box Shadow Hover', 'selector' => '+.cyber-custom-buttons:hover'),
									array('property' => 'margin', 'label' => 'Margin'),
									array('property' => 'padding', 'label' => 'Padding')
								)
								
							)
						)
					)
				),
				'animate' => array(
					array(
						'name'    => 'animate',
						'type'    => 'animate'
					)
				),
			)
		),
		    )// first array
		); // End add map
		endif;
	}
endif;

 /**
 * =======================================================
 *    Register Shortcode team section
 * =======================================================
 */     
 // [cyber-icon-box_box title="" desc="" icon=""]
if(!function_exists('cyber_custom_button_shortcode')){
	function cyber_custom_button_shortcode($atts,$content){
	ob_start();
			$cyber_custom_button = shortcode_atts(array(
					'button_text'  => '',
					'button_link'  => '',
					'layout' 	   => '1',
					'custom_css'   => '',
					'custom_class' => '',
			),$atts); 
			extract( $cyber_custom_button );
		//custom class		
		$wrap_class  = apply_filters( 'kc-el-class', $atts );
		if( !empty( $custom_class ) ):
			$wrap_class[] = $custom_class;
		endif;
		$extra_class =  implode( ' ', $wrap_class );
		
	$data_button="";
	$size_array = array('full', 'medium', 'large', 'thumbnail');		


	if ( !empty( $button_link ) ) {
		$button_link_text = explode( '|', $button_link );
		$button_link = $button_link_text[0];
	}

	if( empty($button_text) )
		$button_text = __( '', 'cyber' );

	$data_button .= '<div class="cyber-button">';
		$data_button .= '<a href="'. $button_link .'">'. $button_text  .'<i class="fa fa-angle-right"></i></a>';
	$data_button .= '</div>';

	
switch($layout){
	case'3':
		?>
		<div class="cyber-custom-buttons three   <?php echo esc_attr( $extra_class ); ?>">
				<?php echo $data_button; ?>
		</div>
		<?php
	break;
	case'2':
		?>
		<div class="cyber-custom-buttons two   <?php echo esc_attr( $extra_class ); ?>">
				<?php echo $data_button; ?>
		</div>
		<?php
	break;
	default:
		?>
		<div class="cyber-custom-buttons one   <?php echo esc_attr( $extra_class ); ?>">
				<?php echo $data_button; ?>
		</div>
		<?php
	break;
}

		return ob_get_clean();
	}
	add_shortcode('cyber_custom_button' ,'cyber_custom_button_shortcode');
}