CSS checkbox input styling

Question

With CSS 2 you can do this:

input[type='checkbox'] { ... }

This should be pretty widely supported by now. See support for browsers

I create my own solution without label

input[type=checkbox] {
         position: relative;
	       cursor: pointer;
    }
    input[type=checkbox]:before {
         content: "";
         display: block;
         position: absolute;
         width: 16px;
         height: 16px;
         top: 0;
         left: 0;
         border: 2px solid #555555;
         border-radius: 3px;
         background-color: white;
}
    input[type=checkbox]:checked:after {
         content: "";
         display: block;
         width: 5px;
         height: 10px;
         border: solid black;
         border-width: 0 2px 2px 0;
         -webkit-transform: rotate(45deg);
         -ms-transform: rotate(45deg);
         transform: rotate(45deg);
         position: absolute;
         top: 2px;
         left: 6px;
}

<input type="checkbox" name="a">
<input type="checkbox" name="a">
<input type="checkbox" name="a">
<input type="checkbox" name="a">

input[type=checkbox] {
         position: relative;
	       cursor: pointer;
    }
    input[type=checkbox]:before {
         content: "";
         display: block;
         position: absolute;
         width: 20px;
         height: 20px;
         top: 0;
         left: 0;
         background-color:#e9e9e9;
}
input[type=checkbox]:checked:before {
         content: "";
         display: block;
         position: absolute;
         width: 20px;
         height: 20px;
         top: 0;
         left: 0;
         background-color:#1E80EF;
}
    input[type=checkbox]:checked:after {
         content: "";
         display: block;
         width: 5px;
         height: 10px;
         border: solid white;
         border-width: 0 2px 2px 0;
         -webkit-transform: rotate(45deg);
         -ms-transform: rotate(45deg);
         transform: rotate(45deg);
         position: absolute;
         top: 2px;
         left: 6px;
}

<input type="checkbox" name="a">
<input type="checkbox" name="a">
<input type="checkbox" name="a">
<input type="checkbox" name="a">

Something I recently discovered for styling Radio Buttons AND Checkboxes. Before, I had to use jQuery and other things. But this is stupidly simple.

input[type=radio] {
    padding-left:5px;
    padding-right:5px;
    border-radius:15px;

    -webkit-appearance:button;

    border: double 2px #00F;

    background-color:#0b0095;
    color:#FFF;
    white-space: nowrap;
    overflow:hidden;

    width:15px;
    height:15px;
}

input[type=radio]:checked {
    background-color:#000;
    border-left-color:#06F;
    border-right-color:#06F;
}

input[type=radio]:hover {
    box-shadow:0px 0px 10px #1300ff;
}

You can do the same for a checkbox, obviously change the input[type=radio] to input[type=checkbox] and change border-radius:15px; to border-radius:4px;.

Hope this is somewhat useful to you.

Classes also work well, such as:

<style>
  form input .checkbox
  {
    /* your checkbox styling */
  }
</style>

<form>
  <input class="checkbox" type="checkbox" />
</form>

You can apply only to certain attribute by doing:

input[type="checkbox"] {...}

It explains it here.

input[type="checkbox"] {
 /* your style */
}

But this will only work for browsers except IE7 and below, for those you will have to use a class.