CSS - 使用多个类的悬停效果 [英] CSS - using multiple classes for hover effect

问题描述

我正尝试向导航栏的悬停状态添加一个小三角形。

I am trying to add a mini triangle to the hover state of navigation bar.

HTML：

        <div id="menu_bars">
            <div id="main_bar">
                <ul>
                    <li class="maintabs maintabs_tri"><a href="#">Over</a></li>
<li class="maintabs maintabs_tri"><a href="#">Collar</a></li>
<li class="maintabs maintabs_tri"><a href="#">Bod</a></li>
                </ul>           
            </div>  

            <div id="css_arrow" class="maintabs_tri"><a href="#"></a>
            </div>
        </div>

'main_bar'div创建一个水平导航菜单。
div id'css_arrow'正在用于创建一个箭头，它将显示悬停状态。
我游戏他们所有的类'maintabs_tri'，其中包括三角形和'main_tab'导航菜单，以便当悬停状态变为活动时，三角形出现在导航栏上。

The 'main_bar' div creates a horizontal navigation menu. The div id 'css_arrow' is being use to create an arrow which will show up on hover state. I game them all a class called 'maintabs_tri' which includes the triangle and the 'main_tab' navigation menu, so that when the hover state becomes active, the triangle appears on the navigation bar.

CSS：

/* START OF MAIN BAR */
#main_bar ul {
    float: left;
    width: 630px;
    height: 48px;
}

.maintabs {
    display: inline-block;
    width: 25%;
    list-style-type: none;
    background: rgba(237,237,237,1);
    background: -moz-linear-gradient(top, rgba(255,255,255,1), rgba(237,237,237,1)); 
    background: -webkit-gradient(linear, top, bottom, from(rgba(255,255,255,1)), to(rgba(237,237,237,1)));
    -moz-box-shadow: 1px 2px 2px rgba(0,0,0,0.2);
    -webkit-box-shadow: 1px 2px 2px rgba(0,0,0,0.2);
    box-shadow: 1px 2px 2px rgba(0,0,0,0.2);
    -webkit-transition-property: 
}

.maintabs:first-child {
    -webkit-border-top-left-radius: 6px;
    -webkit-border-bottom-left-radius: 6px;
    -moz-border-radius-topleft: 6px;
    -moz-border-radius-bottomleft: 6px;
    border-top-left-radius: 6px;
    border-bottom-left-radius: 6px; 
}

.maintabs:last-child {
    -webkit-border-top-right-radius: 6px;
    -webkit-border-bottom-right-radius: 6px;
    -moz-border-radius-topright: 6px;
    -moz-border-radius-bottomright: 6px;
    border-top-right-radius: 6px;
    border-bottom-right-radius: 6px;        
}

.maintabs a {
    display: block;
    text-decoration: none;
    text-align: center;
    vertical-align: middle;
    line-height: 14px;
    text-shadow: 0px 1px 2px rgba(0,0,0,0.3);
    padding: 18px 0px;
}

.maintabs ul {
    display: none;
    list-style-type: none;
}

.maintabs ul li a {
    text-decoration: none;
}
/* END OF MAIN BAR */



/* TRIANGLE ------ for testing, to be used with hover later */
#css_arrow {
    border-color: transparent transparent rgba(111,46,11,0.0) transparent;
    border-style: solid;
    border-width: 8px;
    height: 0;
    width: 0;
    position: absolute;
    top: 34px;
    left: 78px;
}

.maintabs_tri a:hover {
    border-color: transparent transparent rgba(111,46,11,1) transparent;
}

有人可能分享为什么这不工作吗？我不能想出我的生活...

Could someone share why this is not working? I cannot figure out for the life of me...

推荐答案

添加到 .maintabs_tri a：hover

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