$(document).ready(function(){

    $(".button-collapse").sideNav();
    $('.parallax').parallax();

});

$(document).ready(function(){

    $(".button-collapse").sideNav();
    $('.parallax').parallax();
    $('.dropdown-button').dropdown({
        inDuration: 300,
        outDuration: 225,
        constrain_width: true, // Does not change width of dropdown to that of the activator
        hover: false, // Activate on hover
        gutter: 0, // Spacing from edge
        belowOrigin: true, // Displays dropdown below the button
        }
    );
});

Add dropdown menu functionality plugin.
Add dropdown menu functionality plugin.
