Tutorial Custom Checkboxes and Radio Buttons

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The selectors here are specific to Wufoo markup, but the concepts at work can work for any form. The overall idea is that you make the default radio buttons and checkboxes invisible by setting their opacity to zero, and replace them with graphics. Then use the :checked selector to alternate the graphics between their checked and unchecked versions.

/* 
    Hide the original radios and checkboxes
    (but still accessible)
    
    :not(#foo) > is a rule filter to block browsers
                 that don't support that selector from
                 applying rules they shouldn't
       
*/
li:not(#foo) > fieldset > div > span > input[type='radio'], 
li:not(#foo) > fieldset > div > span > input[type='checkbox'] {
    
    /* Hide the input, but have it still be clickable */
    opacity: 0;
    
    float: left;
    width: 18px;
}


li:not(#foo) > fieldset > div > span > input[type='radio'] + label,
li:not(#foo) > fieldset > div > span > input[type='checkbox'] + label {
    margin: 0;
    clear: none;
    
    /* Left padding makes room for image */
    padding: 5px 0 4px 24px;

    /* Make look clickable because they are */
    cursor: pointer;
    
    background: url(off.png) left center no-repeat; 
}

/*
    Change from unchecked to checked graphic
*/
li:not(#foo) > fieldset > div > span > input[type='radio']:checked + label {
    background-image: url(radio.png);
}
li:not(#foo) > fieldset > div > span > input[type='checkbox']:checked + label {
    background-image: url(check.png);
}

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