Why writing two classes in same element will not work?

Question

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HTML

<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Twoclasees</title>
    <style>
      .box {
        width: 700px;
        margin: 100px auto;
      }
      .top {
        border-top: 4px solid #3a5a40;
      }
    </style>
  </head>
  <body>
    <div class="box">
      <div class="border top">
        <p>Test</p>
      </div>
    </div>
  </body>
</html>

Why the border will not work if you put two classes like:

CSS

.border .top {border-top: 4px solid #3a5a40;}

It will only show if you put either one, but not both. Pardon my English. I'm trying to learn, but English is not my main language.

What I have tried:

I tried putting two classes, but the border will not show, it will only show if you put either .border or .top, I just want to know why putting both will not work.

Posted 27-Aug-23 16:43pm

Jomar Apas

Updated 28-Aug-23 8:07am

Deeksha Shenoy

v4

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Andre Oosthuizen · Answer 1 · 2023-08-28T04:57:00

To target an element that has both classes border and top, you should use a single selector without space between the classes. You had '.border .top', it should be '.border.top' -

HTML

<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Twoclasees</title>
    <style>
      .box {
        width: 700px;
        margin: 100px auto;
      }
      .border.top {
        border-top: 4px solid #3a5a40;
      }
    </style>
  </head>
  <body>
    <div class="box">
      <div class="border top">
        <p>Test</p>
      </div>
    </div>
  </body>
</html>

See a working fiddle - both classes border and top [^]

Graeme_Grant · Answer 2 · 2023-08-27T16:49:00

Sometimes your browser caching can make it appear that way. Easiest way to force a page refresh is to open you dev tools, stitching to the network tab, then turn on/check disable caching. Now when you refresh the page, a full reload will happen.

Have a read of this Stack Overflow answer: https://stackoverflow.com/a/7000899[^]

Why writing two classes in same element will not work?

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