Question

我使用过本教程：http://line25.com/tutorials/how-to-create-a-pure-css-dropdown-menu

当我悬停网页设计时，会出现一个新菜单，当我悬停“HTML”时，“网页设计”会将颜色更改为不同的灰色。所以当我在菜单中移出时，我选择的路径会有另一种灰色。 CSS文件中的哪一行定义了？我想改变那种灰色。

body, div, h1, h2, h3, h4, h5, h6, p, ul, ol, li, dl, dt, dd, img, form, fieldset, input, textarea, blockquote {
    margin: 0; padding: 0; border: 0;
}

body {
    background: #909eab url(bg.png);
    font-family: Helvetica, sans-serif; font-size: 18px; line-height: 24px;
}

nav {
    margin: 100px auto; 
    text-align: center;
}

nav ul ul {
    display: none;
}

    nav ul li:hover > ul {
        display: block;
    }


nav ul {
    background: #efefef; 
    background: linear-gradient(top, #efefef 0%, #bbbbbb 100%);  
    background: -moz-linear-gradient(top, #efefef 0%, #bbbbbb 100%); 
    background: -webkit-linear-gradient(top, #efefef 0%,#bbbbbb 100%); 
    box-shadow: 0px 0px 9px rgba(0,0,0,0.15);
    padding: 0 20px;
    border-radius: 10px;  
    list-style: none;
    position: relative;
    display: inline-table;
}
    nav ul:after {
        content: ""; clear: both; display: block;
    }

    nav ul li {
        float: left;
    }
        nav ul li:hover {
            background: #4b545f;
            background: linear-gradient(top, #4f5964 0%, #5f6975 40%);
            background: -moz-linear-gradient(top, #4f5964 0%, #5f6975 40%);
            background: -webkit-linear-gradient(top, #4f5964 0%,#5f6975 40%);
        }
            nav ul li:hover a {
                color: #fff;
            }

        nav ul li a {
            display: block; padding: 25px 40px;
            color: #757575; text-decoration: none;
        }


    nav ul ul {
        background: #5f6975; border-radius: 0px; padding: 0;
        position: absolute; top: 100%;
    }
        nav ul ul li {
            float: none; 
            border-top: 1px solid #6b727c;
            border-bottom: 1px solid #575f6a; position: relative;
        }
            nav ul ul li a {
                padding: 15px 40px;
                color: #fff;
            }   
                nav ul ul li a:hover {
                    background: #4b545f;
                }

    nav ul ul ul {
        position: absolute; left: 100%; top:0;
    }

编辑：

HTML代码：

<html>
<head>
<meta charset="utf-8" />
<title>CSS Dropdown Menu</title>

<link href="style.css" rel="stylesheet" />

</head>
<body>

<nav>
    <ul>
        <li><a href="#">Home</a></li>
        <li><a href="#">Tutorials</a>
            <ul>
                <li><a href="#">Photoshop</a></li>
                <li><a href="#">Illustrator</a></li>
                <li><a href="#">Web Design</a>
                    <ul>
                        <li><a href="#">HTML</a></li>
                        <li><a href="#">CSS</a></li>
                    </ul>
                </li>
            </ul>
        </li>
        <li><a href="#">Articles</a>
            <ul>
                <li><a href="#">Web Design</a></li>
                <li><a href="#">User Experience</a></li>
            </ul>
        </li>
        <li><a href="#">Inspiration</a></li>
    </ul>
</nav>

</body>
</html>

Answer 1

这些代码行正在进行悬停：

{{1}}

因此，请在此处更改颜色，以便反映出来。

Answer 2

用于此css

nav ul li:hover {
            background: #4b545f;
            background: linear-gradient(top, #4f5964 0%, #5f6975 40%);
            background: -moz-linear-gradient(top, #4f5964 0%, #5f6975 40%);
            background: -webkit-linear-gradient(top, #4f5964 0%,#5f6975 40%);
        }

您可以尝试使用此css或html

＆＃13;

nav {
	margin: 100px auto; 
	text-align: center;
}

nav ul ul {
	display: none;
}

	nav ul li:hover > ul {
		display: block;
	}


nav ul {
	background: #efefef; 
	background: linear-gradient(top, #efefef 0%, #bbbbbb 100%);  
	background: -moz-linear-gradient(top, #efefef 0%, #bbbbbb 100%); 
	background: -webkit-linear-gradient(top, #efefef 0%,#bbbbbb 100%); 
	box-shadow: 0px 0px 9px rgba(0,0,0,0.15);
	padding: 0 20px;
	border-radius: 10px;  
	list-style: none;
	position: relative;
	display: inline-table;
}
	nav ul:after {
		content: ""; clear: both; display: block;
	}

	nav ul li {
		float: left;
	}
		nav ul li:hover {
			background: #4b545f;
			background: linear-gradient(top, #4f5964 0%, #5f6975 40%);
			background: -moz-linear-gradient(top, #4f5964 0%, #5f6975 40%);
			background: -webkit-linear-gradient(top, #4f5964 0%,#5f6975 40%);
		}
			nav ul li:hover a {
				color: #fff;
			}
		
		nav ul li a {
			display: block; padding: 25px 40px;
			color: #757575; text-decoration: none;
		}
			
		
	nav ul ul {
		background: #5f6975; border-radius: 0px; padding: 0;
		position: absolute; top: 100%;
	}
		nav ul ul li {
			float: none; 
			border-top: 1px solid #6b727c;
			border-bottom: 1px solid #575f6a; position: relative;
		}
			nav ul ul li a {
				padding: 15px 40px;
				color: #fff;
			}	
				nav ul ul li a:hover {
					background: #4b545f;
				}
		
	nav ul ul ul {
		position: absolute; left: 100%; top:0;
	}

＆＃13;

<nav>
	<ul>
		<li><a href="#">Home</a></li>
		<li><a href="#">Tutorials</a>
			<ul>
				<li><a href="#">Photoshop</a></li>
				<li><a href="#">Illustrator</a></li>
				<li><a href="#">Web Design</a>
					<ul>
						<li><a href="#">HTML</a></li>
						<li><a href="#">CSS</a></li>
					</ul>
				</li>
			</ul>
		</li>
		<li><a href="#">Articles</a>
			<ul>
				<li><a href="#">Web Design</a></li>
				<li><a href="#">User Experience</a></li>
			</ul>
		</li>
		<li><a href="#">Inspiration</a></li>
	</ul>
</nav>

＆＃13;

Answer 3

它来自这条线。

nav ul li:hover {
            background: #4b545f;
            background: linear-gradient(top, #4f5964 0%, #5f6975 40%);
            background: -moz-linear-gradient(top, #4f5964 0%, #5f6975 40%);
            background: -webkit-linear-gradient(top, #4f5964 0%,#5f6975 40%);
        }

什么线定义了这种悬停效果？

3 个答案: