大家晚安！我正在博客上创建一个博客，我想根据标签放置背景颜色。例如：当我搜索一个标签时，例如：Books所有包含此标签的帖子都会出现，包含此标签的帖子将以蓝色背景显示。当我打开带有标签的帖子时，Books该帖子还必须具有蓝色博客背景。我试图在英文的stackoverflow中找到一个类似的问题，但代码在这里不起作用是链接Change color by Blogger Tag
但是，当我将此代码放在博客上并使用具有正确颜色的标签时，它始终保持最后一个颜色集，而不是我想要的每个标签的一个颜色......当没有标签时，他将颜色放入就像他没有一样if。
博主应该关注侧面每个导航按钮的颜色。
当我放置代码时，主页的颜色应该是只有当所有帖子都包含我正在寻找的标签时。
这是主页
更新： 菜单代码如下：
<!-- https://www.w3schools.com/howto/tryit.asp?filename=tryhow_js_sidenav_dropdown -->
<link rel="stylesheet" href="https://www.w3schools.com/w3css/4/w3.css" />
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.15.1/css/fontawesome.min.css" />
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.15.1/css/solid.min.css" />
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.15.2/css/brands.min.css"/>
<!doctype html>
<style>
#mySidenav a {
position: fixed;
left: -230px;
transition: 0.3s;
padding: 15px;
width: 270px;
text-decoration: none;
font-size: 20px;
color: white;
border-radius: 0 5px 5px 0;
}
#mySidenav a:hover {
left: 0;
}
#search {
top: 40px;
background-color: #FFBA99;
}
#home {
top: 100px;
background-color: #BA2D26;
}
#about {
top: 160px;
background-color: #0055A5;
}
#blog {
top: 220px;
background-color: #5F6BB0;
}
#projects {
top: 280px;
background-color: #158DA9;
}
#contact {
top: 340px;
background-color: #8F2054;
}
#matematica{
top:400px;
background-color:#B1BB36;
}
#sheatsheet{
top:460px;
background-color:#B80c00;
}
#postsPolulares{
top:520px;
background-color:#420085;
}
#arquivos{
top:580px;
background-color:#963c00;
}
#contato{
top:640px;
background-color:#8a0a83;
}
#sobre{
top:700px;
background-color:#006b54;
}
#repositorio{
top:760px;
background-color:#000000;
}
#calendario{
top:820px;
background-color:#0F89BA;
}
#media{
top:880px;
background-color:#EC7650;
}
#books{
top:940px;
background-color:#49497F;
}
#rss{
top:1000px;
background-color:#D38094;
}
a{
text-align: right;
}
/* Novo estilo*/
*{box-sizing: border-box}
/* Set height of body and the document to 100% */
body, html {
height: 100%;
margin: 0;
font-family: Arial;
}
/* Style tab links */
.tablink {
background-color: #555;
color: white;
float: left;
border: none;
outline: none;
cursor: pointer;
padding: 14px 16px;
font-size: 17px;
width: 25%;
}
.tablink:hover {
background-color: #777;
}
/* Style the tab content (and add height:100% for full page content) */
.tabcontent {
color: white;
display: none;
padding: 100px 20px;
height: 100%;
}
#Search {background-color: #FFBA99;}
#Home {background-color: #BA2D26;}
#About {background-color: #0055A5;}
#Blog {background-color: #5F6BB0;}
#Projects {background-color: #158DA9;}
#Contact {background-color: #8F2054;}
#Matematica {background-color:#B1BB36;}
#Sheatsheet {background-color:#B80c00;}
#PostsPolulares {background-color:#420085;}
#Arquivos {background-color:#963c00;}
#Contato {background-color:#8a0a83;}
#Sobre {background-color:#006b54;}
#Repositorio {background-color:#000000;}
#Calendario {background-color:#0F89BA;}
#Media {background-color:#EC7650;}
#Books {background-color:#49497F;}
#Rss {background-color:#D38094;}
/*#News {background-color: green;}
#Contact {background-color: blue;}
#About {background-color: orange;}*/
/*FIm DO NOVO ESTILO*/
</style>
<div id="mySidenav" class="sidenav">
<a href="https://www.steamizando.com/p/busca.html" id="search" class="tablink" onclick="openPage('Search', this, '#FFBA99')">Pesquisar <i class="fas fa-search"></i></a>
<a href="https://www.steamizando.com/p/home.html" id="home" class="tablink" onclick="openPage('Home', this, '#BA2D26')">Home <i class="fas fa-home"></i></a>
<a href="https://www.steamizando.com/p/ciencia.html" id="about" class="tablink" onclick="openPage('About', this, '#0055A5')"> Ciência <i class="fas fa-microscope"></i> </a>
<a href="https://www.steamizando.com/p/tecnologia.html" id="blog" class="tablink" onclick="openPage('Blog', this, '#5F6BB0')"> Tecnologia <i class="fas fa-laptop-code"></i></a>
<a href="https://www.steamizando.com/p/engenharia.html" id="projects" class="tablink" onclick="openPage('Projects', this, '#158DA9')"> Engenharia <i class="fas fa-tools"></i></a>
<a href="https://www.steamizando.com/p/artes.html" id="contact" class="tablink" onclick="openPage('Contact', this, '#8F2054')"> Artes <i class="fas fa-palette"></i></a>
<a href="https://www.steamizando.com/search/label/Matematica" id="matematica" class="tablink" onclick="openPage('Matematica', this, '#B1BB36')"> Matematica <i class="fas fa-square-root-alt"></i></a>
<a href="https://www.steamizando.com/p/cheatsheet.html" id="sheatsheet" class="tablink" onclick="openPage('Sheatsheet', this, '#b80c00')" >Sheatsheet <i class="fas fa-table"></i></a>
<a href="https://www.steamizando.com/p/populares.html" id="postsPolulares" class="tablink" onclick="openPage('PostsPolulares', this, '#420085')" > Polulares <i class="fas fa-fire"></i></a>
<a href="https://www.steamizando.com/p/arquivos.html" id="arquivos" class="tablink" onclick="openPage('Arquivos', this, '#963c00')" >Arquivos <i class="fas fa-folder"></i></a>
<a href="https://www.steamizando.com/p/contato.html" id="contato" class="tablink" onclick="openPage('Contato', this, '#8a0a83')" >Contato <i class="fas fa-at"></i></a>
<a href="https://www.steamizando.com/p/sobre.html" id="sobre" class="tablink" onclick="openPage('Sobre', this, '#006b54')" >Sobre <i class="fas fa-address-card"></i></a>
<a href="https://www.steamizando.com/p/repositorio.html" id="repositorio" class="tablink" onclick="openPage('Repositorio', this, '#000000')" >Repositorio <i class="fab fa-github-alt"></i></a>
<a href="https://www.steamizando.com/p/calendario.html" id="calendario" class="tablink" onclick="openPage('Calendario', this, '#0F89BA')" >Calendario <i class="fas fa-calendar-alt"></i></a>
<a href="https://www.steamizando.com/p/media.html" id="media" class="tablink" onclick="openPage('Media', this, '#EC7650')">Media <i class="fas fa-photo-video"></i></a>
<a href="https://www.steamizando.com/p/livros.html" id="books" class="tablink" onclick="openPage('Books', this, '#49497F')"> Books <i class="fas fa-book"></i></a>
<a href="https://www.steamizando.com/p/rss.html#" id="rss" class="tablink" onclick="openPage('Rss', this, '#D38094')" >Rss <i class="fas fa-rss"></i></a>
</div>
<!-- <button class="tablink" onclick="openPage('About', this, '#0055A5')">Home</button> -->
<div id="Search" class="tabcontent">
<h3>Home</h3>
<p>Home is where the heart is..</p>
</div>
<div id="Home" class="tabcontent">
<h3>Home</h3>
<p>Home is where the heart is..</p>
</div>
<div id="About" class="tabcontent">
<h3>Home</h3>
<p>Home is where the heart is..</p>
</div>
<div id="Blog" class="tabcontent">
<h3>Home</h3>
<p>Home is where the heart is..</p>
</div>
<div id="Projects" class="tabcontent">
<h3>Home</h3>
<p>Home is where the heart is..</p>
</div>
<div id="Contact" class="tabcontent">
<h3>Home</h3>
<p>Home is where the heart is..</p>
</div>
<div id="Matematica" class="tabcontent">
<h3>Home</h3>
<p>Home is where the heart is..</p>
</div>
<div id="Sheatsheet" class="tabcontent">
<h3>Home</h3>
<p>Home is where the heart is..</p>
</div>
<div id="PostsPolulares" class="tabcontent">
<h3>Home</h3>
<p>Home is where the heart is..</p>
</div>
<div id="Sheatsheet" class="tabcontent">
<h3>Home</h3>
<p>Home is where the heart is..</p>
</div>
<div id="Arquivos" class="tabcontent">
<h3>Home</h3>
<p>Home is where the heart is..</p>
</div>
<div id="Contato" class="tabcontent">
<h3>Home</h3>
<p>Home is where the heart is..</p>
</div>
<div id="Repositorio" class="tabcontent">
<h3>Home</h3>
<p>Home is where the heart is..</p>
</div>
<div id="Sobre" class="tabcontent">
<h3>Home</h3>
<p>Home is where the heart is..</p>
</div>
<div id="Media" class="tabcontent">
<h3>Home</h3>
<p>Home is where the heart is..</p>
</div>
<div id="Calendario" class="tabcontent">
<h3>Home</h3>
<p>Home is where the heart is..</p>
</div>
<div id="Books" class="tabcontent">
<h3>Home</h3>
<p>Home is where the heart is..</p>
</div>
<div id="Rss" class="tabcontent">
<h3>Home</h3>
<p>Home is where the heart is..</p>
</div>
<script>
function openPage(pageName,elmnt,color) {
var i, tabcontent, tablinks;
tabcontent = document.getElementsByClassName("tabcontent");
for (i = 0; i < tabcontent.length; i++) {
tabcontent[i].style.display = "none";
}
tablinks = document.getElementsByClassName("tablink");
for (i = 0; i < tablinks.length; i++) {
tablinks[i].style.backgroundColor = color;
}
document.getElementById(pageName).style.display = "block";
elmnt.style.backgroundColor = color;
}
// Get the element with id="defaultOpen" and click on it
document.getElementById("defaultOpen").click();
</script>
</!doctype>
我已经把它放在博主的脚本小工具里了。但是当我打开小工具进行编辑时，上面的部分代码不再出现。但我面临的问题如下，每个选项卡都是一个指向标签的搜索链接，例如在此处输入链接描述。所以我想点击标签，所有带有标签的帖子都matematica将出现在与标签颜色相同的背景中。同样的事情也会发生在所有其他选项卡上。但是当主页面有所有帖子时，即收集帖子时（标签上方的联合操作）背景应该是白色的。
更改背景的代码如下：
<script>
function openPage(pageName,elmnt,color) {
var i, tabcontent, tablinks;
tabcontent = document.getElementsByClassName("tabcontent");
for (i = 0; i < tabcontent.length; i++) {
tabcontent[i].style.display = "none";
}
tablinks = document.getElementsByClassName("tablink");
for (i = 0; i < tablinks.length; i++) {
tablinks[i].style.backgroundColor = color;
}
document.getElementById(pageName).style.display = "block";
elmnt.style.backgroundColor = color;
}
// Get the element with id="defaultOpen" and click on it
document.getElementById("defaultOpen").click();
</script>
我认为问题出在这部分代码中：
tablinks = document.getElementsByClassName("tablink");
for (i = 0; i < tablinks.length; i++) {
tablinks[i].style.backgroundColor = color;
}
document.getElementById(pageName).style.display = "block";
elmnt.style.backgroundColor = color;
再次感谢您的帮助 ：）