A Pen by Felix Schwarzer.

index.html

<div class="holder">
  
  <h1>Mozilla-like Buttons</h1>
  
<button class="button">Button</button>
<button class="back">Back</button>
<button class="site">2</button>
<button class="site">1</button>
  
</div>

script.js

/* Hey
    i hope you like these buttons :) I made them look like the really nice buttons      
    from 
    http://support.mozilla.org
    
*/

Single-Element-Mozilla-Buttons.markdown

Single Element Mozilla-Buttons

Some buttons like the mozilla.support buttons. Not the best, but easy to make.

A Pen by Felix Schwarzer on CodePen.

License.

style.css

@import url(http://fonts.googleapis.com/css?family=Open+Sans:400,600,700);

/* General Buttons */
button {
  width: 130px;
  height: 40px;
  background: linear-gradient(to bottom, #4eb5e5 0%,#389ed5 100%); /* W3C */
  border: none;
  border-radius: 5px;
  position: relative;
  border-bottom: 4px solid #2b8bc6;
  color: #fbfbfb;
  font-weight: 600;
  font-family: 'Open Sans', sans-serif;
  text-shadow: 1px 1px 1px rgba(0,0,0,.4);
  font-size: 15px;
  text-align: left;
  text-indent: 5px;
  box-shadow: 0px 3px 0px 0px rgba(0,0,0,.2);
  cursor: pointer;

/* Just for presentation */  
  display: block;
  margin: 0 auto;
  margin-bottom: 20px;
}
button:active {
  box-shadow: 0px 2px 0px 0px rgba(0,0,0,.2);
  top: 1px;
}

button:after {
  content: "";
  width: 0;
  height: 0;
  display: block;
  border-top: 20px solid #187dbc;
  border-bottom: 20px solid #187dbc;
  border-left: 16px solid transparent;
  border-right: 20px solid #187dbc;
  position: absolute;
  opacity: 0.6; 
  right: 0;
  top: 0;
  border-radius: 0 5px 5px 0;  
}

/* Button pointing left */

button.back {
  text-align: right;
  padding-right: 12px;
  box-sizing: border-box;
}
button.back:after {
  content: "";
  width: 0;
  height: 0;
  display: block;
  border-top: 20px solid #187dbc;
  border-bottom: 20px solid #187dbc;
  border-right: 16px solid transparent;
  border-left: 20px solid #187dbc;
  position: absolute;
  opacity: 0.6; 
  left: 0;
  top: 0;
  border-radius: 5px 0 0 5px;    
}

/* Single buttons */

button.site {
  width: 40px;
  text-align: center;
  text-indent: 0;
}
button.site:after{
  display: none;
}





/* Presentation stuff */
.holder {
  width: 400px;
  background: #efefef;
  padding: 30px 10px;
  box-sizing: border-box;
  margin: 0 auto;
  margin-top: 20px;  
  text-align: center;
}

h1 {
  font: 400 16px 'Open Sans';
  text-transform: uppercase;
  color: #999;
  text-shadow: 1px 1px 1px #fff;
  margin-bottom: 30px;
}