day and night

by Adi Jaya

HTML

<h1 class="night">Coba diberi cahaya Sedikit</h1>

<br>
<br>
<br>
<br>
<br>
<br>
<br>

<button class="light" id="on">ON</button>
<button class="light" id="off" disabled>OFF</button>

CSS

body {
    background: #181919;
    text-align: center;
    padding: 40px;
    font-family: sans-serif;
    color: #f1f1f1;
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    margin: 0;
}

body.on_light {
    -moz-box-shadow: 0px 0px 200px 0px #232222 inset;
    -webkit-box-shadow: 0px 0px 200px 0px #232222 inset;
    box-shadow: 0px 0px 200px 0px #000000 inset;
    background: rgba(0, 0, 0, 0.17);
}

h1.night {
    color: #272626;
    text-shadow: -2px 2px #444444;
}
h1.light {
    color: #ffffff;
    text-shadow: -2px 2px #444444;
}
button.light {
    padding: 10px;
    -webkit-border-radius: 50px;
    -moz-border-radius: 50px;
    border-radius: 50px;
    border: none;
    min-width: 70px;
    background: #eca92e;
    outline: none;
    cursor: pointer;
    font-weight: bold;
}
button.light:disabled {
    cursor: no-drop;
    background: #a8abab;
    color: #efeeec;
}

JavaScript

$(function () {
	var a = $('#on'),
  		b = $('#off'),
      c =	$('body');
      
    $('.light').click(function() { 
     		$('.light').prop('disabled',false);
        $(this).prop('disabled',true);        
    });
    
     a.click(function() {
     		c.addClass('on_light');
        $('h1')
        .removeClass('night')
        .addClass('light')
        .text('Gini Kan Lebih Enak');
     });
     
     b.click(function() {
     		c.removeClass('on_light');
        $('h1')
        .removeClass('light')
        .addClass('night')
        .text('Ahh.. Abang, Sukanya yang Gelap-Gelap');
     });
});