There are two distinct methods for adjusting opacity in HTML:
<div opacity="0.5"></div><div style="opacity: 0.5;"></div>I am familiar with setting these values in JavaScript as well:
div.setAttribute("opacity", 0.5);div.style.opacity = 0.5
What are the major distinctions between these two approaches? Is there a recommended preference? (I assume consistency is key)
The opacity attribute that I am familiar with is specifically used for SVGs, as stated in the documentation.
Examples of Elements
Various elements in SVG can utilize the opacity attribute:
Graphics elements,
<a>,<defs>,<glyph>,<g>,<marker>,<missing-glyph>,<pattern>,<svg>,<switch>,<symbol>
Your attempt to use
<div opacity="0.5"></div>Using CSS can often be more efficient than relying on Javascript for styling purposes. If you can achieve your desired effect with CSS alone, it is preferable to avoid unnecessary scripting.
CSS specificity rules dictate that inline styles and HTML attributes take precedence over External or Embedded CSS. However, while inline CSS can be useful in certain project scenarios, it is generally not considered best practice.
Optimal CSS opacity implementation:
img {
opacity: 0.4;
filter: alpha(opacity=40); /* For compatibility with IE8 and earlier */
}
https://css-tricks.com/almanac/properties/o/opacity/
img {
/* Preferred approach for IE 8 & 9 (more valid) */
/* ...though not essential as filter also functions */
/* should precede filter */
-ms-filter:"progid:DXImageTransform.Microsoft.Alpha(Opacity=50)"; // IE8
/* This method is effective in IE versions 5-7 as well */
filter: alpha(opacity=50); // IE 5-7
/* Modern Browser support */
opacity: 0.5;
}
Whenever I print from Chrome, there seems to be extra space between lines in the middle of a paragraph! Here is an image showing the difference between print emulation and print preview This excess space is always in the same position on various pages an ...
Struggling with implementing reactivity in vue.js within a loop? The loop renders fine, but firing an event updates the content without visibly rendering the data on the page. The latest version of vue.js is being used with bootstrap and jquery. Despite a ...
I have recently created a character sheet for a game using HTML. The HTML file is mainly comprised of various input tags such as <input type="text">, <input type="number">, <input type="checkbox">, <input type="radio">, <select&g ...
function debounce(fn, delay) { var timer return function () { var context = this var args = arguments clearTimeout(timer) timer = setTimeout(function () { fn.apply(context, args) }, delay) ...
I'm running into an issue with Vs code where it's not recognizing ejs output tags when they're inside an html tag, like in the input tag below : <input type="checkbox" name="checkbox" value="<%=item._id%>" onChange="this.form. ...
Currently, I'm working with node JavaScript and facing an issue where I need to run a new function after a loop has completed. In the code snippet provided below, // loop through objects in data, to process it represents a basic for loop iterating ove ...
I'm currently working on setting up a confirmation email feature for user sign-ups on my website. I've tackled similar tasks in the past, but this time I've hit a roadblock - the emails are not being sent, and there are no error messages to ...
Is there a way to prevent the positioning and size of an image from affecting the layout of my list? I'm new to coding and struggling with this issue in my first project. Any advice or guidance would be greatly appreciated. <!DOCTYPE html> <h ...
In order to prevent name mixing with other libraries, I want my MaterialUI components to be under the same namespace. For example, ensuring that <Box> references <MaterialUI.Box> and not <SomeOtherLibrary.Box>. Although it seems like a si ...
I have a straightforward base64 image that I am having trouble with. The issue is that only the upper half of the image is displaying. If I try to adjust the height using the "style" attribute in the img tag: style="height: 300px;" it shows correctly. Ho ...
I am facing an issue with scrolling on my website. While it currently works fine, I would like to make the scrolling instant without any animation. I want the page to refresh and remain in the same position as before, without automatically scrolling to a s ...
When I navigate a page, I input something in a field using type(), click on a button with click(), and then wait for an element to appear using wait(). I am interested in retrieving all the headers associated with the POST request that is triggered after ...
Currently, I am faced with the task of constructing an HTML code structure within C# code behind. Specifically, I need to insert an HTML element that spans 3 columns in a row of 12 columns (utilizing Zurb Foundation). To achieve this, I am iterating throu ...
Having a collection of assets and their quantities: const bag = { eth: 50, btc: 30, kla: 10, set: 5, ova: 5 }; const assetList = { eth: { name: "Ethereum", icon: "urlhere", colour: "#030", text: "light&q ...
Seeking assistance with integrating a Fancybox inline content call from a Skel-layer menu (using the theme found at ) <nav id="nav"> <ul> <li><a href="#about1" class="fancybox fancybox.inline button small fit" >about< ...
I have developed a feature that highlights any text within a <p> tag in red based on a user-specified keyword. The current implementation works well, but it is slow when dealing with over 1000 lines of <p>. Is there a faster way to achieve this ...
Looking to style a ToggleButton like a button? Having trouble with an error in the console when nesting a button inside? Check out this solution: const StyledToggleButtonGroup = withStyles((theme) => ({ grouped: { margin: theme.spacing(0.5) ...
I'm working with an array structured like this: var myArray = []; var item1 = { start: '08:00', end: '09:30' } var item2 = { start: '10:00', end: '11:30' } var item3 = { start: '12:00& ...
Looking to adjust the custom code that I have which aims to extract months from a string using regex. It seems like I'm almost there but not quite hitting the mark. When checking the console log, I am getting "undefined" values for key/value pairs and ...
export default function CRouter() { const [token, setToken] = useLocalStorage('auth', '') const [user, setUser] = useState(false); const GetUser = () => { if (token !== "" && !user) { axios.post(&apo ...