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how do I select a div with class “A” but NOT with class “B”?

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悲&欢浪女
悲&欢浪女 2021-02-06 20:14

I have some divs:

\"Target\"


\"NotMyTarget\"


\"NotMyTarget\"<         


        

                      

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  • 鱼传尺愫
    2021-02-06 20:40 
    .A:not(.B) {}

    But guess who doesn't support that... Indeed, IE<=8.

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  • 后悔当初
    2021-02-06 20:43

    I think the best you can do (until CSS 3) is override the styles in this case with what you don't want from class A B in A, like this:

    .A.B { /* Styles */ }
.A { /* Reverse any styling you don't want */ }
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  • 长情又很酷
    2021-02-06 20:47

    You can use the attribute selector to match the div that has only one class:

    div[class=A] {
  background: 1px solid #0f0;
}

    If you want to select another div that has multiple classes, use quotes:

    div[class="A C"] {
  background: 1px solid #00f;
}

    Some browsers do not support the attribute selector syntax. As usual, "some browsers" is a euphemism for IE 6 and older.

    See also: http://www.quirksmode.org/css/selector_attribute.html

    Full example:

    <!DOCTYPE html>
<html>
<head>
  <style>
    .A { font-size:22px; }
    .B { font-weight: bold; border: 1px solid blue; }
    .C { color: green; }

    div[class="A"] {
      border: 1px solid red;
    }
    div[class="A B"] {
      border: 3px solid green;
    }
  </style>
</head>
<body>
  <div class="A">"Target"</div> 
  <div class="A B">"NotMyTarget"</div> 
  <div class="A C">"NotMyTarget"</div> 
  <div class="A D">"NotMyTarget"</div> 
  <div class="A E">"NotMyTarget"</div> 
</body>
</html>

    EDIT 2014-02-21: Four years later, :not is now widely available, though verbose in this specific case:

    .A:not(.B):not(.C):not(.D):not(.E) {
  border: 1px solid red;
}

    Unfortunately, this doesn't work in IE 7–8 as specified in the question: http://caniuse.com/#search=:not

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