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HTML

            
              <div class="wrap">
  <h1>Ghost Buttons with CSS3 <small>created by <a href="https://twitter.com/mithicher">
    @mithicher
  </a></small></h1>

  <h2>Buttons with Radius</h2>
  <a class="btn btn-medium btn-blue btn-radius" href="#">Download</a>
  <a class="btn btn-medium btn-green btn-radius" href="#">Sign Up</a>
  <a class="btn btn-medium btn-orange  btn-radius" href="#">Sign In</a>
  <a class="btn btn-medium btn-red btn-radius" href="#">Read More</a>
  <a class="btn btn-medium btn-gray btn-radius" href="#">Forgot Password</a>
  
  <hr />
  
  <h2>Medium Buttons</h2>
  <a class="btn btn-medium btn-blue" href="#">Download</a>
  <a class="btn btn-medium btn-green" href="#">Sign Up</a>
  <a class="btn btn-medium btn-orange" href="#">Sign In</a>
  <a class="btn btn-medium btn-red" href="#">Read More</a>
  <a class="btn btn-medium btn-gray" href="#">Forgot Password</a>
  
  <hr />
  
  <h2>Small Buttons</h2>
  <a class="btn btn-small btn-blue" href="#">Download</a>
  <a class="btn btn-small btn-green" href="#">Sign Up</a>
  <a class="btn btn-small btn-orange" href="#">Sign In</a>
  <a class="btn btn-small btn-red" href="#">Read More</a>
  <a class="btn btn-small btn-gray" href="#">Forgot Password</a>
  
   <hr />
  
  <h2>Large Buttons</h2>
  <a class="btn btn-large btn-blue" href="#">Download</a>
  <a class="btn btn-large btn-green" href="#">Sign Up</a>
  <a class="btn btn-large btn-orange" href="#">Sign In</a>
  <a class="btn btn-large btn-red" href="#">Read More</a>
  <a class="btn btn-large btn-gray" href="#">Forgot Password</a>
  
  <hr />
  
  <p>Colors taken from <a href="http://colours.neilorangepeel.com">colours.neilorangepeel.com</a>.</p>
</div>
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CSS

            
              @import url(https://fonts.googleapis.com/css?family=Raleway);

*, *:before, *:after {
  -webkit-box-sizing: border-box;
  -moz-box-sizing: border-box;
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

.wrap {
  width: 100%;
  max-width: 900px;
  margin: 4em auto;
  font-family: Raleway, Arial, sans-serif;
  padding: 1em 2em;
}

hr {
    display: block;
    height: 1px;
    border: 0;
    border-top: 2px solid #eee;
    margin: 2em 0;
    padding: 0;
}

h1, h2 {
  margin-bottom: 1em;
  border-bottom: 2px solid #eee;
  line-height: 1.5;
}

h1 > small{
  color: #666;
}

h1 > small > a,
p > a{
  color: #3CB371;
  text-decoration: none;
}
h1 > small > a:hover,
p > a:hover{
  text-decoration: underline;
}

/* Buttons styles */
input::-moz-focus-inner,
button::-moz-focus-inner {
	border: 0;
	padding: 0;
}

input[type="submit"].btn,
button.btn {
	cursor: pointer;
}

a.btn,.btn {
  margin-right: 1em; /* remove this while use*/
  margin-bottom: 1em; /* remove this while use*/
	display: inline-block;
	outline: none;
	*zoom: 1;
	text-align: center;
	text-decoration: none;
	font-family: inherit;
	font-weight: 300;
	letter-spacing: 1px;
	vertical-align: middle;
	border: 1px solid;
	transition: all 0.2s ease;
	box-sizing: border-box;
	text-shadow: 0 1px 0 rgba(0,0,0,0.01);
}
/* Radius */
.btn-radius {
  border-radius: 3px;
}
/* Sizes */
.btn-small {
	font-size: 0.8125em;
	padding: 0.4125em 1.25em;
}
.btn-medium {
	font-size: 0.9375em;
	padding: 0.5375em 1.375em;
}
.btn-large {
	font-size: 1.0625em;
	padding: 0.5625em 1.5em;
}

/* Colors */
.btn-green {
	color: #3CB371;
	border-color: #3CB371;
}
.btn-green:hover {
  background: #3CB371;
  color: #fff;
  border-color: #3CB371;		
}

.btn-blue {
	color: #4682B4;
	border-color: #4682B4;
}
.btn-blue:hover {
  background: #4682B4;
  color: #fff;
  border-color: #4682B4;		
}

.btn-orange {
	color: #FF8C00;
	border-color: #FF8C00;
}
.btn-orange:hover {
  background: #FF8C00;
  color: #fff;
  border-color: #FF8C00;		
}

.btn-red {
	color: #B22222;
	border-color: #B22222;
}
.btn-red:hover {
  background: #B22222;
  color: #fff;
  border-color: #B22222;	
}

.btn-gray {
	color: #808080;
	border-color: #808080;
}
.btn-gray:hover {
  background: #808080;
  color: #fff;
  border-color: #808080;	
}
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