What is the best way to implement CSS styles on constantly changing HTML elements?

Currently, I am just starting to explore CSS and expand my knowledge.

Here's a scenario I'm pondering:

If my HTML content experiences a delay in loading due to an AJAX request, and then gets appended to an already loaded div tag;

How can I effectively apply CSS styles to this inner HTML?

For instance, consider the following div element:

<div class="row">
    <div class="col-md-5 col-md-offset-2">
        <div id="theTableContainer"></div>
    </div>
</div>

When trying to load HTML into the div with the ID "theTableContainer,"

I typically set the CSS properties within the callback function of the XHR success once the HTML is appended to the div like this:

$("#theTableContainer table tr:gt(0)").each(function(){
        $(this).find("td:eq(2)").
            css("background-color","#8600e6").
            css("color","#F8F8FF").
            css("font-weight","bold");
});

Are there alternative approaches I should consider?

Feel free to check out the link provided below for a demonstration of the code in action.

My Example Code

javascriptjquerycssunderscore.js

Answer №1

If you're looking for a more effective approach, consider adding CSS classes that you wish to include and then utilizing the addClass method to dynamically apply CSS.

$("#theTableContainer table tr").each(function(){
        $(this).find("td").addClass('background color font-weight');
});
.background {
background-color: red;
}

.color {
 color: white;
}

.font-weight {
 font-weight: 'bold';
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="row">
    <div class="col-md-5 col-md-offset-2">
        <div id="theTableContainer">
        <table>
         <tr>
         <td>
          example
         </td>
         </tr>
        </table>
        </div>
    </div>
</div>

Answer №2

To include the style in your CSS file, you can use the following code:

#wrapper table tbody tr td:nth-child(3){
  background-color: #8600e6;
  color: #F8F8FF;
  font-weight: bold;
}

Check out the updated fiddle.

Another approach is to apply the styling using jQuery by grouping the CSS properties:

$(this).find("td:eq(2)").css({"background-color": "#8600e6", 
                              "color":"#F8F8FF",
                              "font-weight":"bold"});

Answer №3

One way to achieve the desired result is by creating a CSS class that contains all the properties you want:

.active {
    background-color: #8600e6;
    color: #F8F8FF;
    font-weight: bold;
}

Then, you can apply this class like so:

$(this).find("td:eq(2)").addClass('active');

You can also check out a demo on jsfiddle.

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