D3: Scatter Plot 1

by Paco86

HTML

<script src="https://d3js.org/d3.v4.js"></script>
<svg 
    version="1.1"
    baseProfile="full"
    xmlns="http://www.w3.org/2000/svg" >
  </svg>

CSS

svg {
  margin: 0 auto;
  display: block;
}

.tick line {
	stroke: #ccc;
	stroke-dasharray: 8, 2;
}

.tooltip {
	opacity: 0;
	position: absolute;
	pointer-events: none;
	background-color: lightblue;
	border: 8px solid blue;
	border-radius: 8px;
	padding: 15px;
}


.tooltip p{
	margin: 0;
}


.tooltip:before{
	content: ' ';
	position: absolute;
	border: 12px solid transparent;
	border-bottom-color: blue;
	top: -30px;
	left: 50%;
	margin-left: -6px;
}

JavaScript

(function(){

	var birthData2011=[{region:"Afghanistan",births:1408e3,population:32358260,area:652860,lifeExpectancy:49},{region:"Albania",births:41e3,population:3215988,area:27400,lifeExpectancy:77},{region:"Algeria",births:712e3,population:35980193,area:2381741,lifeExpectancy:73},{region:"Angola",births:803e3,population:19618432,area:1246700,lifeExpectancy:51},{region:"Argentina",births:693e3,population:40764561,area:2736690,lifeExpectancy:76},{region:"Armenia",births:47e3,population:3100236,area:28470,lifeExpectancy:74},{region:"Australia",births:307e3,population:22605732,area:7682300,lifeExpectancy:82},{region:"Austria",births:74e3,population:8413429,area:82523,lifeExpectancy:81},{region:"Azerbaijan",births:184e3,population:9306023,area:82663,lifeExpectancy:71},{region:"Bahamas",births:5e3,population:347176,area:10010,lifeExpectancy:76},{region:"Bahrain",births:23e3,population:1323535,area:771,lifeExpectancy:75},{region:"Bangladesh",births:3016e3,population:150493658,area:130170,lifeExpectancy:69},{region:"Barbados",births:3e3,population:273925,area:430,lifeExpectancy:77},{region:"Belarus",births:107e3,population:9559441,area:202910,lifeExpectancy:70},{region:"Belgium",births:123e3,population:10754056,area:30280,lifeExpectancy:80},{region:"Belize",births:8e3,population:317928,area:22810,lifeExpectancy:76},{region:"Benin",births:356e3,population:9099922,area:112760,lifeExpectancy:56},{region:"Bhutan",births:15e3,population:738267,area:38117,lifeExpectancy:67},{region:"Bolivia (Plurinational State of)",births:264e3,population:10088108,area:1083300,lifeExpectancy:67},{region:"Bosnia and Herzegovina",births:32e3,population:3752228,area:51200,lifeExpectancy:76},{region:"Botswana",births:47e3,population:2030738,area:566730,lifeExpectancy:53},{region:"Brazil",births:2996e3,population:196655014,area:8358140,lifeExpectancy:73},{region:"Brunei...