.button {
 
    /*Krok 2: Podstawowe style*/
    display: block;
    height: 150px;
    width: 150px;
    background: #0099CC;
    border: 1px solid rgba(33, 68, 72, 0.59);
 
    /*Krok 3: Style tekstu*/
    color: rgba(0, 0, 0, 0.55);
    text-align: center;
    font: bold 0.8em/25px "Helvetica Neue", Arial, Helvetica, Geneva, sans-serif;
  
    /*Krok 4: Ozdobne style CSS3*/
    background: -webkit-linear-gradient(top, #000099,  #0099CC);
    background: -moz-linear-gradient(top, #000099,  #0099CC);
    background: -o-linear-gradient(top, #000099,  #0099CC);
    background: -ms-linear-gradient(top, #000099,  #0099CC);
    background: linear-gradient(top, #000099,  #0099CC);
 
    -webkit-border-radius: 5px;
    -khtml-border-radius: 5px;
    -moz-border-radius: 5px;
    border-radius: 5px;
 
    -webkit-box-shadow: 0 8px 0 #063c03;
    -moz-box-shadow: 0 8px 0 #063c03;
    box-shadow: 0 8px 0 #063c03;
 
    text-shadow: 0 2px 2px rgba(255, 255, 255, 0.2);
}

/*Krok 3: Linkuj styl*/
a.button {
    text-decoration: none;
}

/*Krok 5: Zachowanie przy najechaniu na button*/
a.button:hover {
    background: #0099CC;
    background: -webkit-linear-gradient(top, # #0099CC, #000099);
    background: -moz-linear-gradient(top, # #0099CC, #000099);
    background: -o-linear-gradient(top, # #0099CC, #000099);
    background: -ms-linear-gradient(top, # #0099CC, #000099);
    background: linear-gradient(top, #0099CC, #000099);
}