CSS不能在所有

Question

說明適用：
我用純HTML和這是工作的罰款所有我的其他網頁除了一個一個CSS文件中的頁面。
CSS文件保存在/styles.css中，HTML頁面保存在/site.html中。
我也檢查了錯誤的CSS和html文件，沒有。

問題：
我想要的CSS對/site.html就好了工作。

@font-face { 
 
    font-family: Webfont; 
 
    src: url(/fonts/webfont-normal.ttf); 
 
} 
 

 
@font-face { 
 
    font-family: Webfont; 
 
    src: url(/fonts/webfont-bold.ttf); 
 
    font-weight: bold; 
 
} 
 

 
body { 
 
    font-family: Webfont, monospace; 
 
    background-color: #f0f8ff; 
 
    margin: 0; 
 
} 
 

 
body div.center { 
 
    max-height: 100vh; 
 
    margin: auto; 
 
    width: 80%; 
 
} 
 

 
.header { 
 
    font-family: Webfont, monospace; 
 
    font-size: 30px; 
 
    width: 30%; 
 
    margin: auto; 
 
    padding-top: 30%; 
 
} 
 

 
.header { 
 
    margin: 0; 
 
} 
 

 
body div.button { 
 
    color: #000; 
 
} 
 

 
.text-large { 
 
    font-size: 20px; 
 
    font-weight: bold; 
 
} 
 

 
.subtitle { 
 
    font-size: 18px; 
 
} 
 

 
div.subtitled { 
 
    font-size: 18px; 
 
    font-weight: bold; 
 
} 
 

 
ul li { 
 
    list-style: none; 
 
    margin-bottom: 15px; 
 
} 
 

 
ul li img { 
 
    display: block; 
 
} 
 

 
ul li span { 
 
    display: block; 
 
} 
 

 
a { 
 
    transition: 1s; 
 
    padding: 1px; 
 
    margin: 5px; 
 
    color: lightslategray; 
 
    max-width: 200px; 
 
} 
 

 
a:hover { 
 
    transition: 1s; 
 
    color: black; 
 
} 
 

 
input { 
 
    border: 1px solid aliceblue; 
 
    border-radius: 20px; 
 
    width: 200px; 
 
    height: 30px; 
 
    cursor: pointer; 
 
    font-family: Webfont; 
 
    font-size: 15px; 
 
} 
 

 
input[type=text] { 
 
    border: none; 
 
    border-radius: 0px; 
 
    cursor: text; 
 
    font-family: Webfont; 
 
    font-size: 15px; 
 
} 
 

 
.logo { 
 
    position: absolute; 
 
    width: 300px; 
 
    height: 300px; 
 
} 
 

 
.but { 
 
    border: 2px solid darkseagreen; 
 
    border-radius: 20px; 
 
    padding: 8px; 
 
    margin: 5px; 
 
    font-family: Webfont; 
 
    font-size: 15px; 
 
} 
 

 
.inside { 
 
    height: 70%; 
 
    padding: 20px; 
 
    margin: 10px; 
 
} 
 

 
.login-view .background { 
 
    width: 100vw; 
 
    height: 100vh; 
 
    position: fixed; 
 
    top: 0; 
 
    left: 0; 
 
    background-color: rgba(0, 0, 0, 0.7); 
 
    z-index: 5; 
 
} 
 

 
.login-view .login { 
 
    width: 50vw; 
 
    height: 60vh; 
 
    background-color: aliceblue; 
 
    position: absolute; 
 
    top: 20vh; 
 
    left: 25vw; 
 
    overflow-y: scroll; 
 
    overflow-x: hidden; 
 
} 
 

 
.login-view .container { 
 
    margin-top: 100px; 
 
} 
 

 
.login-view .header { 
 
    padding: 0; 
 
    width: 65px; 
 
    margin: auto; 
 
} 
 

 
.login-view form { 
 
    width: 200px; 
 
    margin: auto; 
 
} 
 

 
.login-view p { 
 
    width: 143px; 
 
    margin: auto; 
 
} 
 

 
.closed { 
 
    display: none; 
 
} 
 

 
.open { 
 
    display: block; 
 
} 
 

 
button#login { 
 
    transition: 1s; 
 
    background-color: aliceblue; 
 
    border: none; 
 
    font-family: Webfont; 
 
    font-size: 16px; 
 
    color: lightslategray; 
 
    text-decoration: underline; 
 
    cursor: pointer; 
 
} 
 

 
button#login:hover { 
 
    transition: 1s; 
 
    color: black; 
 
} 
 

 
img.deck { 
 
    width: 5vw; 
 
} 
 

 
img.poker { 
 
    width: 5vw; 
 
} 
 

 
canvas { 
 
    margin-top: 20px; 
 
} 
 

 
object { 
 
    margin-left: 35vw; 
 
} 
 

 
.opendiv { 
 
    transition: 1s; 
 
    border: 2px solid black; 
 
    height: 200px; 
 
} 
 

 
.closediv { 
 
    transition: 1s; 
 
    height: 0px; 
 
    border: none 
 
} 
 

 
.opener { 
 
    border-radius: 10px; 
 
    background-color: #E7F4FF; 
 
    overflow-x: hidden; 
 
    overflow-y: scroll; 
 
} 
 

 
.opener::-webkit-scrollbar { 
 
    display: none; 
 
} 
 

 
@media screen and (max-width: 800px) { 
 
    .login-view .login { 
 
    width: 100vw; 
 
    left: 0; 
 
    } 
 
    img.deck { 
 
    width: 20%; 
 
    display: inline-block; 
 
    } 
 
    div.deck { 
 
    width: 100%; 
 
    margin: 0; 
 
    } 
 
    img.poker { 
 
    width: 20vw; 
 
    } 
 
    object { 
 
    margin: 0; 
 
    } 
 
}

<div class="center"> 
 
    <p class="header">Sitemap</p> 
 
</div>