CSS Hack大全-教你如何区分出IE6-IE10、FireFox、Chrome、Opera

<div class="content">
    <div class="test"></div>
    <div class="txt">
        <p>IE6下背景颜色：<span class="ie6" style="">#ccc</span></p>
        <p>IE7下背景颜色：<span class="ie7" style="">#666</span></p>
        <p>IE8下背景颜色：<span class="ie8" style="">#06f</span></p>
        <p>IE9下背景颜色：<span class="ie9" style="">#f00</span></p>
        <p>IE10下背景颜色：<span class="ie10" style="">#0ff</span></p>
        <p>webkit,Safari,Chrome下背景颜色：<span class="webkit-safari-gg" style="">#ff0</span></p>
        <p>FireFox下背景颜色：<span class="firefox" style="">#f0f</span></p>
        <p>Opera下背景颜色：<span class="opera" style="">#0f0</span></p>
    </div>
</div> 

.content .test {
    width: 200px;
    height: 200px;
    background: #f60; /*all*/
    background: #06f9; /*IE*/
    *background: #666; /*IE6,7*/
    _background: #ccc; /*IE6*/
}

/* webkit and opera */
@media all and (min-width:0){
    .content .test {
        background: #0f0;
    }
}

/* webkit */
@media screen and (-webkit-min-device-pixel-ratio:0) {
    .content .test {
        background: #ff0;
    }
}

/*FireFox*/
@-moz-document url-prefix() {
    .content .test {
        background: #f0f;
    }
}

/*IE9+*/
@media all and (min-width:0) {
    .content .test{
        background: #f009;
        }
}

/*IE10+*/
@media screen and (-ms-high-contrast: active), (-ms-high-contrast: none) {
    .content .test {
        background: #0ff;
    }
}