Раздвижная зеленая кнопка скачать на CSS3 | Sliding green button download on CSS3

<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; 
}

Приятного использования!