Set icon font as background in CSS property

All I want to do is replace a background image in CSS with an icon font, not icon image.
I can’t get it done.
This is the CSS property:

.social-networks .twitter{background:url(../images/social/twitter.png);}

This is the code in PHP:

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<ul class="social-networks">
    <?php if (my_option('twitter_link')): ?>
        <li>
            <a href="<?php echo my_option('twitter_link'); ?>"  class="twitter">twitter</a>
        </li>
    <?php endif; ?>

The way I insert an incon font is <span class="icon">A</span>

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4 comments

  1. You could try something like this: FIDDLE

    Let’s say you have your DIV:

    <div class="test"></div>
    

    you create your css style like this:

    .test {
        width: 100px;
        height: 100px;
        border: 2px solid lightblue;
    }
    
    .test:before {
        content: "H";
        width: 100%;
        height: 100%;
        font-size: 5.0em;
        text-align: center;
        display: block;
        line-height: 100px;
    }​
    

    in the property content you choose your “letter” and then you can change the font-size, font-weight, color, etc…

  2. use navigation text instead of background img.

    $(".slider").owlCarousel({
        navigation : true,
        slideSpeed : 500,
        singleItem:true,
        navigationText:['<i class="fa fa-chevron-left" aria-hidden="true"></i>', '<i class="fa fa-chevron-right" aria-hidden="true"></i>']
    });
    

    and set css property for font awesome icon.
    here is normal css for icon.

    .owl-button{
       position:relative;
    }
    .owl-prev {
       position:absolute;
       top:0;
       left:47%;
       font-size: 30px;
    }
    .owl-next {
        position:absolute;
        top:0;
        right:47%;
        font-size: 30px;
    }
    
  3. I came up with something interesting, imo: the CSS element() function. Currently it works only in firefox (so make sure you are opening example linked at the end in that browser).

    Here is HTML:

    <link href="https://fonts.googleapis.com/icon?family=Material+Icons"
      rel="stylesheet">
    
    <div class="bg-patterns">
      <i class="material-icons" id="icon">pets</i>
    </div>
    
    <div class="with-icon-bg">
       Hi! I'm paragraph with background made from ordinary HTML element! And BTW - I'm a pets lover. 
    </div>
    

    …and CSS with comments:

    .material-icons {
      /* icon font */
      font-family: 'Material Icons'; 
      color: #ddd;
    }
    
    /* this is a wrapper for elements you want to use
    as backgrounds, should not be visible on page */
    .bg-patterns {
      margin-left: -90000cm; 
    }
    
    .with-icon-bg {
      /* all magic happens here */
      background: -moz-element(#icon);
    
    
      /* other irrelevant styling */
      font-size: 25px;
      width: 228px;
      margin: 0 auto;
      padding: 30px;
      border: 3px dashed #ddd;
      font-family: sans-serif;
      color: #444;
      text-align: center;
    }
    

    And finally – there is a working example (jsFiddle).