html - CSS3 Firefox 边框半径剪辑

Question

我不确定为什么 Firefox 浏览器会在右上角添加像素边框半径。如果有人在我附上的图片中注意到它。

这只发生在 Firefox 浏览器中。有办法解决吗？

HTML 和 CSS:

    nav {
        height:50px;
        box-sizing: border-box;
    }
    
    nav > ul {
        padding:0;
        margin:0;
    }
    
    nav > ul > li {
        display: block;
        float: left;
        height: 100%;
        line-height: 50px;
        text-align: center;
        width: 144.429px;
         background-color: rgb(128, 0, 128);
        border-color: rgb(255, 167, 252);
        color: rgb(255, 255, 255);
    }
    
    nav > ul > li:first-child {
        border-bottom-left-radius: 25px;
        border-top-left-radius: 25px;
    }
    
    nav > ul > li:last-child {
        border-bottom-right-radius: 25px;
        border-top-right-radius: 25px;
    }

<nav class=""id="menusystem">
        <ul><li class="active"><span><i class="fa fa-building-o"></i> Home</span></li>
            <li><span><i class="fa fa-calendar-o"></i> Book Now</span></li>
            <li><span><i class="fa fa-male"></i> Service Prices</span></li>
            <li><span><i class="fa fa-th"></i> Product Prices</span></li>
            <li><span><i class="fa fa-thumbs-o-up"></i> Our Testimonials</span></li>
            <li><span><i class="fa fa-group"></i> Our Events</span></li>
            <li><span><i class="fa fa-envelope-o"></i> Contact Us</span></li>
        </ul>
    </nav>

Answer 1

您可以使用此代码

nav {
            height: 50px;
            box-sizing: border-box;
            margin: 0 auto;
            width: 1012px;
        }
        nav > ul {
            padding:0;
            margin:0;
        }
        nav > ul > li {
            display: block;
            float: left;
            height: 100%;
            line-height: 50px;
            text-align: center;
            width: 144.429px;
             background-color: rgb(128, 0, 128);
            border-color: rgb(255, 167, 252);
            color: rgb(255, 255, 255);
        }
        nav > ul > li:first-child {
            border-bottom-left-radius: 25px;
            border-top-left-radius: 25px;
        }
        nav > ul > li:last-child {
            border-bottom-right-radius: 25px;
            border-top-right-radius: 25px;
        } 

    <nav class=""id="menusystem">
        <ul><li class="active"><span><i class="fa fa-building-o"></i> Home</span></li>
            <li><span><i class="fa fa-calendar-o"></i> Book Now</span></li>
            <li><span><i class="fa fa-male"></i> Service Prices</span></li>
            <li><span><i class="fa fa-th"></i> Product Prices</span></li>
            <li><span><i class="fa fa-thumbs-o-up"></i> Our Testimonials</span></li>
            <li><span><i class="fa fa-group"></i> Our Events</span></li>
            <li><span><i class="fa fa-envelope-o"></i> Contact Us</span></li>
        </ul>
    </nav>