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Minimize popup menu when user clicks outside menu

I am creating a CSS drop menu without using JavaScript, and after researching, I found this code http://jsfiddle.net/zsp7t/1/

<div class="dropdown" id="dropdown">
    <input type="checkbox" id="drop1" />
    <label for="drop1" class="dropdown_button">
        <img src="http://ichef.bbci.co.uk/wwfeatures/43_43/images/live/p0/17/tx/p017txf6.jpg" height="43" width="43" /><span id="arrowSpan" class="arrow"></span>
    </label>
    <ul class="dropdown_content">
        <li><a href="#">Privacy settings</a>
        </li>
        <li><a href="#">Account settings</a>
        </li>
        <li><a href="#">Logout</a>
        </li>
    </ul>
</div>

and here CSS

body {
    background-color: white;
    font: normal 11px Tahoma, Verdana, Arial, Sans-Serif;
    color: #222;
    height: 380px;
}

#arrowSpan{
    display:block;
    margin-left:17px;
    margin-top:2px;
    margin-bottom:5px;
}

.dropdown {
    display: block;
    display: inline-block;
    margin: 0px 3px;
    position: relative;
}
/* ===[ For demonstration ]=== */
 .dropdown {
    margin-top: 25px
}
/* ===[ End demonstration ]=== */
 .dropdown .dropdown_button {
    cursor: pointer;
    width: auto;
    display: inline-block;
    padding: 0px 0px;
    border: 1px solid silver;
    -webkit-border-radius: 0px;
    -moz-border-radius: 0px;
    border-radius: 2px;
    font-weight: bold;
    color: #717780;
    line-height: 16px;
    text-decoration: none !important;
    background: white;
}
.dropdown input[type="checkbox"]:checked + .dropdown_button {
    border: 1px solid #3B5998;
    color: white;
    background: silver;
    -moz-border-radius-topleft: 2px;
    -moz-border-radius-topright: 2px;
    -moz-border-radius-bottomright: 0px;
    -moz-border-radius-bottomleft: 0px;
    -webkit-border-radius: 2px 2px 0px 0px;
    border-radius: 2px 2px 0px 0px;
    border-bottom-color: silver;
}
.dropdown input[type="checkbox"] + .dropdown_button .arrow {
    display: inline-block;
    width: 1px;
    height: 1px;
    border-top: 5px solid silver;
    border-right: 5px solid transparent;
    border-left: 5px solid transparent;
}
.dropdown input[type="checkbox"]:checked + .dropdown_button .arrow {
    border-color: white transparent transparent transparent
}
.dropdown .dropdown_content {
    position: absolute;
    border: 1px solid #777;
    padding: 0px;
    background: white;
    margin: 0;
    display: none;
    right:0;
}
.dropdown .dropdown_content li {
    list-style: none;
    margin-left: 0px;
    line-height: 16px;
    border-top: 1px solid #FFF;
    border-bottom: 1px solid #FFF;
    margin-top: 2px;
    margin-bottom: 2px;
}
.dropdown .dropdown_content li:hover {
    background: silver;
}
.dropdown .dropdown_content li a {
    display: block;
    padding: 2px 7px;
    padding-right: 15px;
    color: black;
    text-decoration: none !important;
    white-space: nowrap;
}
.dropdown .dropdown_content li:hover a {
    color: white;
    text-decoration: none !important;
}
.dropdown input[type="checkbox"]:checked ~ .dropdown_content {
    display: block
}
.dropdown input[type="checkbox"] {
    display: none
}

which is great for me ... the only problem is that I want the user, by clicking outside on an empty area, to disappear from the list (uncheck) so any help?

note: I do not want to use JavaScript

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2 answers

You can use the tag <a>without a target (only hash on href) and use its attribute :focus: HTML: http://jsfiddle.net/sVxxZ/1/

<span class="dropdown">
    <a href="#">
        Dropdown
    </a>
    <span class="dropdown_content">asdf</span>
</span>

CSS

.dropdown_content {
    display: none;
}
.dropdown a:focus + .dropdown_content {
    display: block;
}

<a> () , :focus , - . , IE Firefox Chrome . .

:focus, (, ..), // , ( /). (<a> elements) , href ( ).

href #, (, ). , , - , , - :focus .

dropdown_content display:none, . sibling + dropdown_content, :focus ed ( HTML), display block, a . - ( - ), , :focus.

, , , CSS ( +) <div> <a>.

: http://jsfiddle.net/zsp7t/32/

0

. Tho JS.

<div class="dropdown" id="dropdown">
    <input type="checkbox" id="drop1" />
    <label for="drop1" class="dropdown_button">
        <img src="http://ichef.bbci.co.uk/wwfeatures/43_43/images/live/p0/17/tx/p017txf6.jpg" height="43" width="43" /><span id="arrowSpan" class="arrow"></span>
    </label>
    <span class="dropdown_button_dummy">
        <img src="http://ichef.bbci.co.uk/wwfeatures/43_43/images/live/p0/17/tx/p017txf6.jpg" height="43" width="43" /><span id="arrowSpan" class="arrow"></span>
    </span>
    <div class="ddw">
        <ul class="dropdown_content">
            <li><a href="#">Privacy settings</a></li>
            <li><a href="#">Account settings</a></li>
            <li><a href="#">Logout</a></li>
        </ul>
    </div>
</div>

position: relative; .dropdown, .

.dropdown {
    display: inline-block;
}

.dropdown .dropdown_button {
    display: inline-block;
   /* Style */
}

.dropdown .dropdown_button_dummy {
    display: none;
}

.dropdown input[type="checkbox"]:checked ~ .dropdown_button_dummy {
    display: inline-block;
    /* Style */
}

.dropdown input[type="checkbox"]:checked + .dropdown_button {
    position: absolute;
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;
    display: block;
    z-index: 1;
    /* Remove styles */
}

.dropdown .ddw {
    position: relative;
    z-index: 2;
}

.dropdown input[type="checkbox"]:checked ~ .ddw > .dropdown_content {
    display: block
}

.dropdown input[type="checkbox"] {
    display: none
}

, dropdown_button_dummy,

0

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