Would it be considered poor practice, for instance, to apply the following CSS rules to all images on my webpage in order to make them responsive:
img {
display: inline-block;
height: auto;
max-width: 100%;
}
Instead of using img-responsive on each image individually, or styling my h1 to h6 tags separately?
No, it is not considered a negative practice. Understanding the distinction between concepts is crucial in this context.
Typically, tags' styling serves the purpose of defining or resetting styles at a fundamental level for your website. This is commonly done to reset styles for cross-browser compatibility. Tools like Normalize.CSS are often used for this task.
When working with frameworks such as Bootstrap or Foundation, they come with their own set of styles. At this point, classes are usually utilized for better organization and reusability.
From here, you have the option to either adopt the framework's styling or create your own unique style.
It is still advisable to use classes for styling purposes. Consider the following HTML structure:
<div class="profile">
<img class="avatar-url" src="..." />
<p>John</p>
</div>
and
.profile p {
font-size: 16px;
}
While this works fine when "name" is the only element within the profile block, if you need to add "title" in the future, you may encounter issues.
<div class="profile">
<img class="avatar-url" src="..." />
<span class="title">Mr. </span><span class="name">John</span>
</div>
This change could lead to problems such as:
<p> tag present.<p> tag, you risk breaking your layout if properties defined for one tag need to be applied to another, especially concerning display attributes like inline or block.In addition, using styles with classes enhances code readability. It is much clearer to read something like .list .item compared to .list div.
Regarding CSS specificity calculation, tags have the lowest priority. Therefore, to override a defined class like .btn, it is necessary to use .btn at minimum.
Utilizing classes is a beneficial strategy, especially when needing diverse styles for images across a website. For instance, you might require specific images to have a fixed width while others may need display: block and additional features like box-shadow.
It's absolutely acceptable to customize basic HTML elements. A common approach is using a CSS reset file or a set of rules specifically designed to reset all default styles. This is necessary because browser defaults can vary. Here's an effective workflow:
Begin by resetting all browser defaults. There are many well-crafted CSS reset rule sets available online. I personally recommend the html5 doctor resets, a modern option for a CSS reset.
Establish your own default styles for HTML elements on your website. These are the base styles that apply to all <img>, <h1> to <h6>, <a>, and so on. This helps maintain clean HTML without the need for excessive classes on every element.
For specific elements requiring different styles than the default or sections needing complex design patterns beyond the default styles, utilize classes and IDs as necessary.
While there are various other methodologies that are equally valid, consider exploring popular CSS methodologies like OOCS, SMACSS, or BEM. These formalized conventions aim to enhance the organization and reusability of your CSS code.
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