.block-4 {
    display: table-cell;
    width: 30%;
    vertical-align: middle;
    
    box-shadow: 0px 14px 28px rgba(0,0,0,0.25), 0px 10px 10px rgba(0,0,0,0.22);
}


.ad-block { display: table; height: 300px; margin: 10px 10px 30px 0px; }

.text-block { 
    display: table-cell; 
    width: 50%;
    vertical-align: middle;
    
    box-shadow: 0 14px 28px rgba(0,0,0,0.25), 0 10px 10px rgba(0,0,0,0.22);
}
p.hd { 
    margin: 0px;
    margin-bottom: 20px;
    padding: 0px;
    
    font-weight: bold; 
    font-size: 0.9em;
    text-transform: uppercase; 
    letter-spacing: 2px; 
    line-height: 2em; 
    text-align: center; 
    cursor: default;
}
.text-block p.ref {
    line-height: 1.4em;
    padding-left: 20px;
    text-transform: lowercase;
    font-weight: bold;
    text-align: center;
}

.green-button {  }
.green-button a {
    display: block;
    width: 200px;
    margin: 0 auto;
    padding: 10px;
    background-color: #73ba59;
    
    text-decoration: none;
    text-transform: uppercase;
    text-align: center;
    font-weight: bold;
    color: #ffffff;
}
.green-button a:hover {
    background-color: #3E763F;
}

.img-block { 
    display: table-cell; 
    width: 50%; 
    box-shadow: 0 14px 28px rgba(0,0,0,0.25), 0 10px 10px rgba(0,0,0,0.22); 
    
}
.img-block img { width: 100%; height: 300px; overflow:hidden;  }

.fl-left { }
.fl-right { }

.img-effects {
  opacity: 0.9;
}

.main-text {
    width: 500px;
    margin: 0 auto;
    margin-top: -55px;
    padding: 20px;
    
    font-weight: bold;
    font-size: 0.9em;
    text-transform: uppercase;
    text-align: center;
    background: #ffffff;
    opacity: 0.7;
    letter-spacing: 2px;
    line-height: 2em;
    
    font-family: Arial, Helvetica, sans-serif;
}