Is it possible to apply a complete style sheet to a single div element only?

I'm currently working on a website and I want to incorporate a dynamic bootstrap calendar. The issue I'm facing is that my site has its own style sheet, but the calendar comes with its own styles. When I try to integrate the two, it seems like elements from one stylesheet are conflicting with elements from the other (for example, the calendar styles are messing up my header, and my styles are making the calendar look asymmetric).

I attempted to solve this by nesting classes and applying them to a div where I placed the calendar code, but unfortunately, that didn't work.

.calendar_content{
sub {
  bottom: -.25em; }

sup {
  top: -.5em; }

a {
  color: #007bff;
  text-decoration: none;
  background-color: transparent; }
  a:hover {
    color: #0056b3;
    text-decoration: underline; }

a:not([href]):not([tabindex]) {
  color: inherit;
  text-decoration: none; }
  a:not([href]):not([tabindex]):hover, a:not([href]):not([tabindex]):focus {
    color: inherit;
    text-decoration: none; }
  a:not([href]):not([tabindex]):focus {
    outline: 0; }

pre,
code,
kbd,
samp {
  font-family: SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  font-size: 1em; }

pre {
  margin-top: 0;
  margin-bottom: 1rem;
  overflow: auto; }
}
<link href="https://cdn.jsdelivr.net/npm/<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="c1a3aeaeb5b2b5b3a0b181f4eff2eff3">[email protected]</a>/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-T3c6CoIi6uLrA9TneNEoa7RxnatzjcDSCmG1MXxSR1GAsXEV/Dwwykc2MPK8M2HN" crossorigin="anonymous">
<script src="https://cdn.jsdelivr.net/npm/<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="55373a3a21262127342515607b667b66">[email protected]</a>/dist/js/bootstrap.bundle.min.js" integrity="sha384-C6RzsynM9kWDrMNeT87bh95OGNyZPhcTNXj1NW7RuBCsyN/o0jlpcV8Qyq46cDfL" crossorigin="anonymous"></script>

<div class="calendar_content"> Calendar code </div>

I also tried using an id approach, but that didn't resolve the issue either.

CSS: #calendar_content{the entire stylesheet content}
HTML: <div id="calendar_content"> Calendar code </div>

Additionally, there are JavaScript files involved, but I don't think they're impacting how the site looks.

javascripthtmlcsstwitter-bootstrap

Answer №1

When working with react/nextjs, simply import the CSS file into the calendar component as a module.

import cssFileName.module.css

For those using native HTML/CSS, incorporating syntax like class nesting will require the use of sass/scss/less. For example:

.class1{
   .class2{
      color: white;
    }
}

Answer №2

It is possible to address issues with nested CSS by adding prefixes to each rule, in order to accommodate situations that do not support the nested CSS structure or to avoid SCSS/SASS usage. However, this approach can lead to a messy and convoluted code.

.calendar_content sub {
  bottom: -.25em;
}

.calendar_content sup {
  top: -.5em;
}

.calendar_content a {
  color: #007bff;
  text-decoration: none;
  background-color: transparent;
}

.calendar_content a:hover {
  color: #0056b3;
  text-decoration: underline;
}

.calendar_content a:not([href]):not([tabindex]) {
  color: inherit;
  text-decoration: none;
}

.calendar_content a:not([href]):not([tabindex]):hover,
.calendar_content a:not([href]):not([tabindex]):focus {
  color: inherit;
  text-decoration: none;
}

.calendar_content a:not([href]):not([tabindex]):focus {
  outline: 0;
}

.calendar_content pre,
.calendar_content code,
.calendar_content kbd,
.calendar_content samp {
  font-family: SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  font-size: 1em;
}

.calendar_content pre {
  margin-top: 0;
  margin-bottom: 1rem;
  overflow: auto;
}
<link href="https://cdn.jsdelivr.net/npm/<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="8defe2e2f9fef9ffecfdcdb8a3bea3bf">[email protected]</a>/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-T3c6CoIi6uLrA9TneNEoa7RxnatzjcDSCmG1MXxSR1GAsXEV/Dwwykc2MPK8M2HN" crossorigin="anonymous">
<script src="https://cdn.jsdelivr.net/npm/<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="5e3c31312a2d2a2c3f2e1e6b706d706c">[email protected]</a>/dist/js/bootstrap.bundle.min.js" integrity="sha384-C6RzsynM9kWDrMNeT87bh95OGNyZPhcTNXj1NW7RuBCsyN/o0jlpcV8Qyq46cDfL" crossorigin="anonymous"></script>

<div class="calendar_content"> Calendar code </div>

Answer №3

As a matter of fact, CSS does support nesting, however, you must still include the & character for each nested rule, as shown below:

.calendar_content {
   color: red;
   & a{
    color: green;
   }
}
<div class="calendar_content"> no link <a href="#">link</a></div>

It seems that utilizing JavaScript to dynamically modify the rules for the calendar and other elements may be the only automated solution.

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