a.button {
    display: block;
    padding: 8px 8px;
    background-color: #b1ebfe;
    color: #fff;
    text-transform: uppercase;
    font-weight: bold;
    text-decoration: none;
    width: 250px;
    border: 1px solid #4de7fe;
    border-radius: 3px;
    margin: 0px 10px 20px;
}
a.button:hover {
background-color: #4de7fe;
}
.buy-button {
background-image: url('http://www.pharmatrade.cz/wp-content/uploads/2016/07/cart-icon.png');
background-repeat: no-repeat;
background-position: 93% 55%;
}
.left {
float: left;
}
.clear {
clear: both;
}