Темно зеленая кнопка скачать

<div class="button">  
  <a href="#">Скачать</a>  
  <p class="top">нажмите чтобы скачать</p>  
  <p class="bottom">12MB .zip</p>  
  </div>

.button {  
  width: 200px;  
  margin: 150px auto;  
}  

.button a {  
  display: block;  
  height: 50px;  
  width: 200px;  
   
  /*ТИП*/  
  color: white;  
  font: 17px/50px Helvetica, Verdana, sans-serif;  
  text-decoration: none;  
  text-align: center;  
  text-transform: uppercase;  
   
  /*ГРАДИЕНТ*/  
  background: #299a0b; /* Old browsers */  
  background: -moz-linear-gradient(top, #299a0b 0%, #299a0b 100%); /* FF3.6+ */  
  background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,#299a0b), color-stop(100%,#299a0b)); /* Chrome,Safari4+ */  
  background: -webkit-linear-gradient(top, #299a0b 0%,#299a0b 100%); /* Chrome10+,Safari5.1+ */  
  background: -o-linear-gradient(top, #299a0b 0%,#299a0b 100%); /* Opera 11.10+ */  
  background: -ms-linear-gradient(top, #299a0b 0%,#299a0b 100%); /* IE10+ */  
  background: linear-gradient(top, #299a0b 0%,#299a0b 100%); /* W3C */  
  filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#299a0b', endColorstr='#299a0b',GradientType=0 ); /* IE6-9 */  
}  

.button a, p {  
  -webkit-border-radius: 10px;  
  -moz-border-radius: 10px;  
  border-radius: 10px;  
   
  -webkit-box-shadow: 2px 2px 8px rgba(0,0,0,0.2);  
  -moz-box-shadow: 2px 2px 8px rgba(0,0,0,0.2);  
  box-shadow: 2px 2px 8px rgba(0,0,0,0.2);  
}  

p {  
  background: #222;  
  display: block;  
  height: 40px;  
  width: 180px;  
  margin: -50px 0 0 10px;  
   
  /*ТИП*/  
  text-align: center;  
  font: 12px/45px Helvetica, Verdana, sans-serif;  
  color: #fff;  
   
  /*ПОЛОЖЕНИЕ*/  
  position: absolute;  
  z-index: -1;  
   
  /*ПЕРЕХОД*/  
  -webkit-transition: margin 0.5s ease;  
  -moz-transition: margin 0.5s ease;  
  -o-transition: margin 0.5s ease;  
  -ms-transition: margin 0.5s ease;  
  transition: margin 0.5s ease;  
}  

/*HOVER*/  
.button:hover .bottom {  
  margin: -10px 0 0 10px;  
}  

.button:hover .top {  
  margin: -80px 0 0 10px;  
  line-height: 35px;  
}  

/*ACTIVE*/  
.button a:active {  
background: #00b7ea; /* Old browsers */  
background: -moz-linear-gradient(top, #00b7ea 36%, #009ec3 100%); /* FF3.6+ */  
background: -webkit-gradient(linear, left top, left bottom, color-stop(36%,#00b7ea), color-stop(100%,#009ec3)); /* Chrome,Safari4+ */  
background: -webkit-linear-gradient(top, #00b7ea 36%,#009ec3 100%); /* Chrome10+,Safari5.1+ */  
background: -o-linear-gradient(top, #00b7ea 36%,#009ec3 100%); /* Opera 11.10+ */  
background: -ms-linear-gradient(top, #00b7ea 36%,#009ec3 100%); /* IE10+ */  
background: linear-gradient(top, #00b7ea 36%,#009ec3 100%); /* W3C */  
filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#00b7ea', endColorstr='#009ec3',GradientType=0 ); /* IE6-9 */  

}  

.button:active .bottom {  
  margin: -20px 0 0 10px;  
}  

.button:active .top {  
  margin: -70px 0 0 10px;  
}