Question

我一直试图将我网站的导航栏标记放在一个单独的文件中，然后将其包含在所有网站页面的头部。但是，我为我的工具栏使用名为 navstyles.css 的css样式，而在我的其他页面中，我使用名为 mainstyle.css 的css样式，使用时它们似乎搞得一团糟在同一个文件中（即使你在不同的时间使用它们）

toolbarkmarkup.php

<html>
<head>
    <meta charset='utf-8'>
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <link rel="stylesheet" href="./css/navstyles.css">
    <script src="http://code.jquery.com/jquery-latest.min.js" type="text/javascript"></script>
    <script src="./scripts/navscript.js"></script>

    <div class = "container">
        <div id='cssmenu'>
            <ul id = "ulyo">
                <li class = "logoSpace" id = "logoSpace"><a href = '#'></a></li>
                <li><a href='#'>Home</a></li>
                <li><a href='#'>Search</a></li>
                <li><a href='#'>Trends</a></li>
                <li class = "emptySpace" id = "emptySpace"><a href='#'></a></li>
                <li class = "profileSpace" id = "profileSpace"><a href='#'>Profile</a>
                    <ul>
                        <li><a href='#'>Settings</a></li>
                        <li><a href='#'>Log Out</a></li>
                    </ul>
                </li>
            </ul>
        </div>
    </div>
    <script>
        pos();
    </script>
</head>
<body>
</body>

showpage.php

<head>
    <?php
    include 'toolbarmarkup.php';
    ?>
    <link rel="stylesheet" type="text/css" href="./css/mainstyle.css"/>
</head>
<body></body>

mainstyle.css

body {
    white-space: pre-wrap;
    /* CSS3 */
    white-space: -moz-pre-wrap;
    /* Firefox */
    white-space: -pre-wrap;
    /* Opera <7 */
    white-space: -o-pre-wrap;
    /* Opera 7 */
    word-wrap: break-word;
    /* IE */
    background: #f9f9f9;
    font-family: 'Helvetica';
    line-height: 20px;
}



.header{
    width: 100%;
    height: auto;
    background-color: blue;
}

.image{
    margin: auto;
    width :100%;
    height: auto;
    max-height : 500px;
    padding-bottom: 70px;
}

.infoText{

    padding-top: 20px;
    vertical-align:middle;
    margin: auto;
    max-width: 900px;
    width: 90%;
    color: #262626;
    font-family: Arial, Helvetica, sans-serif;
    font-size: 16;
}

.titleText{
    margin: auto;
    font-size: 30;
    font-family: Century Gothic, sans-serif;
    text-align: center;
    color: black;
}

.buttons{
    margin: auto;
    text-align: center;
    padding: 10px;
    height: 45px;
    width : 120px;
}

.buttons img{

    margin-left:auto;
    margin-right:auto;
}

img:hover{
    opacity: 0.4;
    filter: alpha(opacity=40); /* For IE8 and earlier */
}

navstyles.css

@import url(http://fonts.googleapis.com/css?family=Montserrat:400,700);
#cssmenu,
#cssmenu ul,
#cssmenu ul li,
#cssmenu ul li a,
#cssmenu #menu-button {
    margin: 0;
    padding: 0;
    border: 0;
    list-style: none;
    line-height: 1;
    display: block;
    position: relative;
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
}
#cssmenu:after,
#cssmenu > ul:after {
    content: ".";
    display: block;
    clear: both;
    visibility: hidden;
    line-height: 0;
    height: 0;
}


body{
    line-height: 0px;
}

.content{
    background: red;
}

.logoSpace{
    width: 200px;
    text-align: center;
    background-image: url("./img/logo.png");/
    background-repeat:   no-repeat;
    background-position: center center;
    top: 6px;
}

.form{
    display:inline;
}


.profileSpace{
    content: "efuh";
}




.container{
    width: 100%;
    background: grey;
    height: 47px;
    position: fixed;
    top: 0px;
    left: 0px;
    background: #333333;
}


#cssmenu #menu-button {
    display: none;
}
#cssmenu {
    height: inherit;
    position: fixed;
    top: 0px;
    left: 0px;
    font-family: Helvetica, sans-serif;
    background: #333333;
}
#cssmenu > ul > li {
    float: left;
}


#cssmenu.align-center > ul {
    font-size: 0;
    text-align: center;
}
#cssmenu.align-center > ul > li {
    display: inline-block;
    float: none;
}
#cssmenu.align-center ul ul {
    text-align: left;
}
#cssmenu.align-right > ul > li {
    float: right;
}
#cssmenu > ul > li > a {
    padding: 15px;
    padding-top: 19px;
    font-size: 12px;
    letter-spacing: 1px;
    text-decoration: none;
    color: #dddddd;
    font-weight: 700;
    text-transform: uppercase;
}
#cssmenu > ul > li:hover > a {
    color: #ffffff;
}
#cssmenu > ul > li.has-sub > a {
    padding-right: 30px;
}
#cssmenu > ul > li.has-sub > a:affrter {
    position: absolute;
    top: 22px;
    right: 11px;
    width: 8px;
    height: 2px;
    display: block;
    background: #dddddd;
    content: '';
}
#cssmenu > ul > li.has-sub > a:before {
    position: absolute;
    top: 19px;
    right: 14px;
    display: block;
    width: 2px;
    height: 8px;
    background: #dddddd;
    content: '';
    -webkit-transition: all .25s ease;
    -moz-transition: all .25s ease;
    -ms-transition: all .25s ease;
    -o-transition: all .25s ease;
    transition: all .25s ease;
}
#cssmenu > ul > li.has-sub:hover > a:before {
    top: 23px;
    height: 0;
}
#cssmenu ul ul {
    position: absolute;
    left: -9999px;
}
#cssmenu.align-right ul ul {
    text-align: right;
}
#cssmenu ul ul li {
    height: 0;
    -webkit-transition: all .25s ease;
    -moz-transition: all .25s ease;
    -ms-transition: all .25s ease;
    -o-transition: all .25s ease;
    transition: all .25s ease;
}
#cssmenu li:hover > ul {
    left: auto;
}
#cssmenu.align-right li:hover > ul {
    left: auto;
    right: 0;
}
#cssmenu li:hover > ul > li {
    height: 35px;
}
#cssmenu ul ul ul {
    margin-left: 100%;
    top: 0;
}
#cssmenu.align-right ul ul ul {
    margin-left: 0;
    margin-right: 100%;
}
#cssmenu ul ul li a {
    border-bottom: 1px solid rgba(150, 150, 150, 0.15);
    padding: 11px 15px;
    width: 170px;
    font-size: 12px;
    text-decoration: none;
    color: #dddddd;
    font-weight: 400;
    background: #333333;
    background: #525252;
}
#cssmenu ul ul li:last-child > a,
#cssmenu ul ul li.last-item > a {
    border-bottom: 0;
}
#cssmenu ul ul li:hover > a,
#cssmenu ul ul li a:hover {
    color: #ffffff;
    background: #333333;
}

#cssmenu ul ul li.has-sub > a:after {
    position: absolute;
    top: 16px;
    right: 11px;
    width: 8px;
    height: 2px;
    display: block;
    background: #dddddd;
    content: '';

}
#cssmenu.align-right ul ul li.has-sub > a:after {
    right: auto;
    left: 11px;

}
#cssmenu ul ul li.has-sub > a:before {
    position: absolute;
    top: 13px;
    right: 14px;
    display: block;
    width: 2px;
    height: 8px;
    background: #dddddd;
    content: '';

    -webkit-transition: all .25s ease;
    -moz-transition: all .25s ease;
    -ms-transition: all .25s ease;
    -o-transition: all .25s ease;
    transition: all .25s ease;
}
#cssmenu.align-right ul ul li.has-sub > a:before {
    right: auto;
    left: 14px;
}
#cssmenu ul ul > li.has-sub:hover > a:before {
    top: 17px;
    height: 0;
}
@media all and (max-width: 768px), only screen and (-webkit-min-device-pixel-ratio: 2) and (max-width: 1024px), only screen and (min--moz-device-pixel-ratio: 2) and (max-width: 1024px), only screen and (-o-min-device-pixel-ratio: 2/1) and (max-width: 1024px), only screen and (min-device-pixel-ratio: 2) and (max-width: 1024px), only screen and (min-resolution: 192dpi) and (max-width: 1024px), only screen and (min-resolution: 2dppx) and (max-width: 1024px) {


    body{
        line-height: 0px;
        font-size: 0px;
    }

    #emptySpace{
        width: 0px;
        height: 0px;
        background: green;
        display:none;
        visibility: hidden;
    }

    .logoSpace{
        width: 0px;
        height: 0px;
        background: grey;
        content: '';
        visibility: hidden;
    }

    #cssmenu {
        width: 100%;
    }
    #cssmenu ul {
        width: 100%;
        display: none;
    }
    #cssmenu.align-center > ul {
        text-align: left;
    }
    #cssmenu ul li {
        width: 100%;
        border-top: 1px solid rgba(120, 120, 120, 0.2);  background: #333333;
    }
    #cssmenu ul ul li,
    #cssmenu li:hover > ul > li {
        height: auto;
    }
    #cssmenu ul li a,
    #cssmenu ul ul li a {
        width: 100%;
        border-bottom: 0;
    }
    #cssmenu > ul > li {
        float: none;
    }
    #cssmenu ul ul li a {
        padding-left: 25px;
    }
    #cssmenu ul ul ul li a {

        padding-left: 35px;
    }
    #cssmenu ul ul li a {
        color: #dddddd;
        background: #525252;
    }
    #cssmenu ul ul li:hover > a,
    #cssmenu ul ul li.active > a {
        color:  #ffffff;
        background: #333333;
    }
    #cssmenu ul ul,
    #cssmenu ul ul ul,
    #cssmenu.align-right ul ul {
        position: relative;
        left: 0;
        width: 100%;
        margin: 0;
        text-align: left;
    }
    #cssmenu > ul > li.has-sub > a:after,
    #cssmenu > ul > li.has-sub > a:before,
    #cssmenu ul ul > li.has-sub > a:after,
    #cssmenu ul ul > li.has-sub > a:before {
        display: none;
    }
    #cssmenu #menu-button {
        display: block;
        padding: 17px;
        color: #dddddd;
        cursor: pointer;
        font-size: 12px;
        text-transform: uppercase;
        font-weight: 700;
    }
    #cssmenu #menu-button:after {
        position: absolute;
        top: 22px;
        right: 17px;
        display: block;
        height: 4px;
        width: 20px;
        border-top: 2px solid #dddddd;
        border-bottom: 2px solid #dddddd;
        content: '';
    }
    #cssmenu #menu-button:before {
        position: absolute;
        top: 16px;
        right: 17px;
        display: block;
        height: 2px;
        width: 20px;
        background: #dddddd;
        content: '';
    }
    #cssmenu #menu-button.menu-opened:after {
        top: 23px;
        border: 0;
        height: 2px;
        width: 15px;
        background:  #ffffff;
        -webkit-transform: rotate(45deg);
        -moz-transform: rotate(45deg);
        -ms-transform: rotate(45deg);
        -o-transform: rotate(45deg);
        transform: rotate(45deg);
    }
    #cssmenu #menu-button.menu-opened:before {
        top: 23px;
        background:  #ffffff;
        width: 15px;
        -webkit-transform: rotate(-45deg);
        -moz-transform: rotate(-45deg);
        -ms-transform: rotate(-45deg);
        -o-transform: rotate(-45deg);
        transform: rotate(-45deg);
    }
    #cssmenu .submenu-button {
        position: absolute;
        z-index: 99;
        right: 0;
        top: 0;
        display: block;
        border-left: 1px solid rgba(120, 120, 120, 0.2);
        height: 46px;
        width: 46px;
        cursor: pointer;
    }
    #cssmenu .submenu-button.submenu-opened {
        background: #262626;
    }
    #cssmenu ul ul .submenu-button {
        height: 34px;
        width: 34px;
    }
    #cssmenu .submenu-button:after {
        position: absolute;
        top: 22px;
        right: 19px;
        width: 8px;
        height: 2px;
        display: block;
        background: #dddddd;
        content: '';
    }
    #cssmenu ul ul .submenu-button:after {
        top: 15px;
        right: 13px;
    }
    #cssmenu .submenu-button.submenu-opened:after {
        background:  #ffffff;
    }
    #cssmenu .submenu-button:before {
        position: absolute;
        top: 19px;
        right: 22px;
        display: block;
        width: 2px;
        height: 8px;
        background: #dddddd;
        content: '';
    }
    #cssmenu ul ul .submenu-button:before {
        top: 12px;
        right: 16px;
    }
    #cssmenu .submenu-button.submenu-opened:before {
        display: none;
    }
}

问题是，身体似乎从标题样式采取样式，反之亦然，任何建议？欣赏它

Answer 1

由于两个CSS文件都将被发送到页面的浏览器，因此浏览器将使用这两个CSS文件来存储整个页面。一旦发生这种情况，你就会受到CSS特异性规则的支配。这是在这样的论坛中解决的太多CSS，但这里有一些资源可以帮助你理解这个问题：

Mozilla Developer Network

Quora post on CSS ordering

Smashing Magazine Article

多种CSS风格扰乱彼此

1 个答案: