html,
body {
margin: 0;
padding: 0;
}
body {
width: 280px;
min-height: 280px;
padding-top: 20px;
padding-left: 20px;
font-size: 14px;
font-family: “Arial”, sans-serif;
line-height: 1.2;
background: #ecf0f1;
}
.block{
width:200px;
margin:0;
background-color:#1abc9c;
padding:10px 20px;
color:white;
}
.block h1{
margin:10px 0 20px 0;
font-size:20px;
font-weight:normal;
}
.block2{
white-space: nowrap;
margin-top:25px;
margin-bottom:10px;
}
.block2 a{
display:inline-block;
background-color:#16a085;
background-image:url(/assets/course14/social-challenge.png);
min-width: 10px;
height: 30px;
padding:0 10px;
margin-right:5px;
text-align:center;
vertical-align: middle;
text-decoration: none;
color: white;
}
.block2 .fb{
background-position:0 0;
}
.block2 .tw{
background-position:-30px 0;
}
.block2 .gl{
background-position:-60px 0;
}