CodePen

HTML

            
              <form>
		<input name="name" placeholder="What is your name?" class="name" required />
		<input name="emailaddress" placeholder="What is your email?" class="email" type="email" required />
    <textarea rows="4" cols="50" name="subject" placeholder="Please enter your message" class="message" required></textarea>
    <input name="submit" class="btn" type="submit" value="Send" />
</form>
            
          
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CSS

            
              @import url(http://fonts.googleapis.com/css?family=Source+Sans+Pro);
body {
	  background:#2d3b36 url(http://www.4freephotos.com/images/batch/Blurry-city-lights1337.jpg)no-repeat center center fixed;
  	-webkit-background-size: cover;
	  -moz-background-size: cover;
	  -o-background-size: cover;
	  background-size: cover;
    padding-top:100px;
}

form {
    margin-left:auto;
    margin-right:auto;
    width: 343px;
    height: 333px;
    padding:30px;
    border: 1px solid rgba(0,0,0,.2);
    -moz-border-radius: 5px;
    -webkit-border-radius: 5px;
    border-radius: 5px;
    -moz-background-clip: padding;
    -webkit-background-clip: padding-box;
    background-clip: padding-box;
    background: rgba(0, 0, 0, 0.5); 
    -moz-box-shadow: 0 0 13px 3px rgba(0,0,0,.5);
    -webkit-box-shadow: 0 0 13px 3px rgba(0,0,0,.5);
    box-shadow: 0 0 13px 3px rgba(0,0,0,.5);
    overflow: hidden; 
}

textarea{
	  background: rgba(255, 255, 255, 0.4) url(http://luismruiz.com/img/gemicon_message.png) no-repeat scroll 16px 16px; 
    width: 276px;
    height: 110px;
    border: 1px solid rgba(255,255,255,.6);
    -moz-border-radius: 4px;
    -webkit-border-radius: 4px;
    border-radius: 4px;
    -moz-background-clip: padding;
    -webkit-background-clip: padding-box;
    background-clip: padding-box; 
    display:block;
    font-family: 'Source Sans Pro', sans-serif;
    font-size:18px;
    color:#fff;
    padding-left:45px;
    padding-right:20px;
    padding-top:12px;
    margin-bottom:20px;
    overflow:hidden;
}

input {
    width: 276px;
    height: 48px;
    border: 1px solid rgba(255,255,255,.4);
    -moz-border-radius: 4px;
    -webkit-border-radius: 4px;
    border-radius: 4px;
    -moz-background-clip: padding;
    -webkit-background-clip: padding-box;
    background-clip: padding-box; 
    display:block;
    font-family: 'Source Sans Pro', sans-serif;
    font-size:18px;
    color:#fff;
    padding-left:20px;
    padding-right:20px;
    margin-bottom:20px;
}

input[type=submit] {
    cursor:pointer;
}

input.name {
	  background: rgba(255, 255, 255, 0.4) url(http://luismruiz.com/img/gemicon_name.png) no-repeat scroll 16px 16px; 
	  padding-left:45px;
}

input.email {
	  background: rgba(255, 255, 255, 0.4) url(http://luismruiz.com/img/gemicon_email.png) no-repeat scroll 16px 20px;
	  padding-left:45px;
}

input.message {
	  background: rgba(255, 255, 255, 0.4) url(http://luismruiz.com/img/gemicon_message.png) no-repeat scroll 16px 16px;
	  padding-left:45px;
}

::-webkit-input-placeholder {
	  color: #fff;
}

:-moz-placeholder{ 
    color: #fff; 
}

::-moz-placeholder {
    color: #fff;
}

:-ms-input-placeholder {  
	  color: #fff; 
}

input:focus, textarea:focus { 
	  background-color: rgba(0, 0, 0, 0.2);
    -moz-box-shadow: 0 0 5px 1px rgba(255,255,255,.5);
    -webkit-box-shadow: 0 0 5px 1px rgba(255,255,255,.5);
    box-shadow: 0 0 5px 1px rgba(255,255,255,.5);
	  overflow: hidden; 
}

.btn {
	  width: 138px;
	  height: 44px;
	  -moz-border-radius: 4px;
	  -webkit-border-radius: 4px;
	  border-radius: 4px;
	  float:right;
    border: 1px solid #253737;
    background: #416b68;
    background: -webkit-gradient(linear, left top, left bottom, from(#6da5a3), to(#416b68));
    background: -webkit-linear-gradient(top, #6da5a3, #416b68);
    background: -moz-linear-gradient(top, #6da5a3, #416b68);
    background: -ms-linear-gradient(top, #6da5a3, #416b68);
    background: -o-linear-gradient(top, #6da5a3, #416b68);
    background-image: -ms-linear-gradient(top, #6da5a3 0%, #416b68 100%);
    padding: 10.5px 21px;
    -webkit-border-radius: 6px;
    -moz-border-radius: 6px;
    border-radius: 6px;
    -webkit-box-shadow: rgba(255,255,255,0.1) 0 1px 0, inset rgba(255,255,255,0.7) 0 1px 0;
    -moz-box-shadow: rgba(255,255,255,0.1) 0 1px 0, inset rgba(255,255,255,0.7) 0 1px 0;
    box-shadow: rgba(255,255,255,0.1) 0 1px 0, inset rgba(255,255,255,0.7) 0 1px 0;
    text-shadow: #333333 0 1px 0;
    color: #e1e1e1;
}

.btn:hover {
    border: 1px solid #253737;
    text-shadow: #333333 0 1px 0;
    background: #416b68;
    background: -webkit-gradient(linear, left top, left bottom, from(#77b2b0), to(#416b68));
    background: -webkit-linear-gradient(top, #77b2b0, #416b68);
    background: -moz-linear-gradient(top, #77b2b0, #416b68);
    background: -ms-linear-gradient(top, #77b2b0, #416b68);
    background: -o-linear-gradient(top, #77b2b0, #416b68);
    background-image: -ms-linear-gradient(top, #77b2b0 0%, #416b68 100%);
    color: #fff;
 }

.btn:active {
    margin-top:1px;
    text-shadow: #333333 0 -1px 0;
    border: 1px solid #253737;
    background: #6da5a3;
    background: -webkit-gradient(linear, left top, left bottom, from(#416b68), to(#416b68));
    background: -webkit-linear-gradient(top, #416b68, #609391);
    background: -moz-linear-gradient(top, #416b68, #6da5a3);
    background: -ms-linear-gradient(top, #416b68, #6da5a3);
    background: -o-linear-gradient(top, #416b68, #6da5a3);
    background-image: -ms-linear-gradient(top, #416b68 0%, #6da5a3 100%);
    color: #fff;
    -webkit-box-shadow: rgba(255,255,255,0) 0 1px 0, inset rgba(255,255,255,0.7) 0 1px 0;
    -moz-box-shadow: rgba(255,255,255,0) 0 1px 0, inset rgba(255,255,255,0.7) 0 1px 0;
    box-shadow: rgba(255,255,255,0) 0 1px 0, inset rgba(255,255,255,0.7) 0 1px 0;
   }



            
          
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