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HTML 

            
              <body>
  <div class="container sessao"><!-- bootstrap -->
    <div class='row' style="margin-top: 30px;">
      <div class="col-md-8 col-md-offset-2">
         <a href="#" class="link-social fb-color"><i class="fa fa-facebook-square"></i> facebook </a>
        <a href="#" class="link-social gplus-color"><i class="fa fa-google-plus-square"></i> google+ </a>
        <a href="#" class="link-social twi-color"><i class="fa fa-twitter-square"></i> twitter </a>
        <a href="whatsapp://send?text=Hello World!" data-action="share/whatsapp/share" class="link-social what-color"><i class="fa fa-whatsapp"></i>  whatsapp </a>
          <!-- AddToAny BEGIN -->
<div class="a2a_kit">
<a class="a2a_button_whatsapp link-social what-color">     whatsapp</a>
</div>
<script type="text/javascript" src="//static.addtoany.com/menu/page.js"></script>
<!-- AddToAny END -->
        
      </div>
    </div>
    <div class="row">
      <div class="col-md-8 col-md-offset-2">
        <br/>
        <a class="styled-link">Home</a>
        <a class="styled-link">About</a>
        <a class="styled-link">Contact</a>
        <input class="styled-input2" placeholder="nome"/>
        <input class="styled-input2" placeholder="email"/>
        <textarea class="styled-input2" placeholder="mensagem"></textarea>
        <button class="test send-message-btn">Enviar Mensagem!         
          <i class="fa fa-paper-plane-o test"></i></button>
        <div style="height: 400px;"></div>
      </div>
    </div>
  </div>
</body>
!

CSS 

            
              body { background: #D7EFFC;  }

.sessao
{
  background: white;
  box-shadow: 0px 2px 2px 0px black;
}

.send-message-btn {
  background: #428BCA;
  color: #fff;
  font-family: 'Lato';
  width: 100%;
  text-align: center;
  border: 0;
  font-size: 28px;
  line-height: 60px;
  cursor: pointer;
  text-shadow: 0px 2px 1px black;
  overflow: visible;
  display:block;
  position: relative;
  margin: 10px 10px;
  border-radius: 5px;
  
  &:hover{
    color: white;
  
    i {
      position: relative;
      transform: rotate(10deg);
      transition: transform .15s;
      animation: flyaway 2s;
      -webkit-animation: flyaway 2s;
   
    }
  }
}

@keyframes flyaway {
  0%   { transform: rotate(10deg);
         top: 5px;
         right: 25px;
         height: 10px; }
  5%   { transform: rotate(10deg);
         top: 13px;
         right: 0px;
         height: 10px; }
  
  40%   { transform: rotate(10deg);
          top: -40px;
          right: -280px;
          opacity: 1; }
  100% { transform: rotate(60deg);
         top: -200px;
         right: -1000px;
         height: 0;
         opacity: 0; }
}

@-webkit-keyframes flyaway {
  0%   { transform: rotate(10deg);
         top: 5px;
         right: 25px;
         height: 30px; }
  5%   { transform: rotate(10deg);
         top: 5px;
         right: 0px;
         height: 30px; }
 
  40%   { transform: rotate(10deg);
          top: -40px;
          right: -280px;
          opacity: 1; }
  100% { transform: rotate(60deg);
         top: -200px;
         right: -1000px;
         height: 0;
         opacity: 0; }
}

.send-message-btn:hover
{
  
}

.send-message-btn:active
{
  
}


.styledBlueBtn 
{
    background: #fff;
    color: #428BCA;
    font-family: 'Pacifico', cursive;*/
    font-size: 25px;
    line-height: 60px;
    margin: 25px 25px;
    width: 100%;
    text-align: center;
    border: 0;
    padding: 10px 25px 10px 25px;
    transition: background 0.7s ease,color 0.7s ease 0s,box-shadow 0.1s;
    opacity: 1;
    box-shadow: 0px 7px 0px grey;
    border-radius: 5px;
}

.styledBlueBtn:hover 
{
  background: #428BCA;
  color: #fff;
  box-shadow: 0px 7px 0px #21669e;
  
}

.styledBlueBtn:active
{
  -webkit-box-shadow: 0px 2px 0px #21669e;
    -moz-box-shadow: 0px 2px 0px #21669e;
    box-shadow: 0px 2px 0px #21669e;
    position:relative;
    top:5px;
}

.styled-input
{
  padding: 8px 15px 8px 15px;
  font-family: 'Pacifico', cursive;
  font-size: 25px;
  line-height: 50px;
  width: 100%;
  margin: 10px 10px;
  border-radius: 5px;
  box-shadow: inset 0px 1px 0px 0px grey;
  transition: box-shadow 0.3s;
  color:  #428BCA;
}

.styled-input:focus
{
  box-shadow: 0px 5px 10px 0px grey;
  border-color:  #428BCA;
  border: none;
  border-radius: 5px;
}

.styled-input2
{
  padding: 8px 15px 8px 15px;
  /*font-family: 'Pacifico', cursive;*/
  font-family: 'Lato';
  font-size: 25px;
  line-height: 50px;
  width: 100%;
  margin: 10px 10px;
  border-bottom: 6px solid grey !important;
  border: none;
  border-radius: 5px;
  color:  #428BCA;
}

.styled-input2:focus
{
  box-shadow: 2px 8px 10px 2px grey;
  border-color:  #428BCA;
  border: none;
  outline: none;
  border-radius: 5px;
  border-bottom: 6px solid #428BCA !important;
}

.styled-link
{
    font-family: 'Lato';
    font-weight: 900;
    font-size: 1.3em;
    color: #3a3a3a;
    transition: background 1s, color 1s;
    -webkit-transition: background 1s, color 1;
    padding: 0.01rem 0.2rem;
    border-bottom: 3px solid #3498db;
    text-decoration: none;
    padding: 5px 10px 5px 10px;
    cursor: pointer;
}

.styled-link:hover
{
    background: #3498db;
    color: white;
}

a:hover, a:visited, a:link, a:active
{
    text-decoration: none;
}

::-webkit-input-placeholder
{
  color: #428BCA;
  opacity: 0.5;
}

:-moz-placeholder 
{ /* Firefox 18- */
  color: #428BCA; 
  opacity: 0.5;
}

::-moz-placeholder 
{  /* Firefox 19+ */
  color: #428BCA;
  opacity: 0.5;
    
}

:-ms-input-placeholder 
{  
  color: #428BCA;  
  opacity: 0.5;
}


.link-social
{
    font-family: 'Lato';
    font-size: 1.2em;
    text-align: center;
    color: white;
    transition: font-size 1s;
    -webkit-transition: font-size 1s;
    text-decoration: none;
    padding: 10px 10px 10px 10px;
    margin 30px 10px;
}

.link-social:hover
{
    animation: hithere 1s ease;
    -webkit-animation: hithere 1s ease;
    -moz-animation: hithere 1s ease;
    font-size: 1.3em;
    color: white;
}

.link-social:active { position: relative; top: 5px; }

.fb-color { background: #305c99; box-shadow: 0px 7px 0px #27487C; }

.fb-color:active { box-shadow: 0px 2px 0px #27487C; }

.gplus-color{ background: #d24228; box-shadow: 0px 7px 0px #BF3826;}

.gplus-color:active { box-shadow: 0px 2px 0px #BF3826;}

.twi-color{ background: #00cdff; box-shadow: 0px 7px 0px #00A9D8; }

.twi-color:active { box-shadow: 0px 2px 0px #00A9D8; }

.what-color{ background: #3BBF26; box-shadow: 0px 7px 0px #3C9B1F; display: inline-flex;}

.what-color:active { box-shadow: 0px 2px 0px #3C9B1F; }

@keyframes hithere 
{
  30% { transform: scale(1.2); }
  40%, 60% { transform: rotate(-20deg) scale(1.2); }
  50% { transform: rotate(20deg) scale(1.2); }
  70% { transform: rotate(0deg) scale(1.2); }
  100% { transform: scale(1); }
}

@-webkit-keyframes hithere
{
  30% { transform: scale(1.2); }
  40%, 60% { transform: rotate(-20deg) scale(1.2); }
  50% { transform: rotate(20deg) scale(1.2); }
  70% { transform: rotate(0deg) scale(1.2); }
  100% { transform: scale(1); }
}

@-moz-keyframes hithere
{
  30% { transform: scale(1.2); }
  40%, 60% { transform: rotate(-20deg) scale(1.2); }
  50% { transform: rotate(20deg) scale(1.2); }
  70% { transform: rotate(0deg) scale(1.2); }
  100% { transform: scale(1); }
}

.link-social:hover, .link-social:visited, .link-social:link, .link-social:active
{
    text-decoration: none;
    color: white;
}
!

JS
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