body {
background:#fff;
color:#444;
font-family: Calibri, sans-serif;
font-size:17px;
line-height:1.5;
margin: 0; 
padding: 0;
}

img {max-width:100%; height:auto;}
a {color:#FF4E50;}
a:hover {color:#3FB8AF;}
.container {max-width:920px; padding: 0 20px; margin: 0 auto;}
.introduction {background:#f7f7f7; padding:10px 10px 20px 10px; margin: 20px 0; text-align:center;}
.introduction p {font-size:19px;}
header {background:#3FB8AF; font-size:23px;font-weight:bold; padding:0 20px;}
header a {color:#fff; text-decoration:none;}
header a:hover {color:#000}
img.left {width:460px; height:250px;float:left; margin: 0 20px 10px 0;}

footer {margin: 50px 0 0 0;text-align:center;background:#f5f5f5; padding: 50px 0; color:#333; }
footer a {text-decoration:none;color:#000;}

@media screen and (max-width: 860px) {
img {max-width:100%;}
img.left {margin: 20px 0; float:none; width:100%; height: auto;}
}