<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css">
<style>
body {
font-family: Arial, Helvetica, sans-serif;
}
* {
box-sizing: border-box;
}
.container {
position: relative;
border-radius: 5px;
background-color: #f2f2f2;
padding: 20px 0 30px 0;
}
input,
.btn {
width: 100%;
padding: 12px;
border: none;
border-radius: 4px;
margin: 5px 0;
opacity: 0.85;
display: inline-block;
font-size: 17px;
line-height: 20px;
text-decoration: none;
}
input:hover,
.btn:hover {
opacity: 1;
}
.fb {
background-color: #3B5998;
color: white;