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Apply styling only on the text inside a DIV

I'm having a div in HTML which is dynamically creating from the server side. I want to apply css in HTML(front-end) only on that div if and only if its having some-content. If it doesn't have any content then I have no need to apply the new styling.
The sample of HTML code is:
<div class="attr-marker">
Some-text-content <!-- Apply New Styling on it -->
</div>
<div class="attr-marker">
<!-- No need of new styling -->
</div>
<div class="attr-marker">
<!-- No need of new styling -->
<i class="fas fa-car" style="color:#d42424;font-size:px"></i>
</div>
And the CSS which I tried but failed is:
.attr-marker text {
display: block;
width: 12px;
height: 12px;
border-radius: 50%;
line-height: 12px;
font-size: 9px;
text-align: center;
background: #000;
color: #fff;
}
I can achieve it by using javascript but I want purely CSS solution so it'll help me to minimize the code.

You can set default style for empty div by using :empty pseudo selector. And then for regular div, just set the style as given above.
Or you can use :not(:empty) Pseudo Selector to set the style for the div that is not empty.
Here's an example:
.attr-marker:not(:empty) {
display: block;
width: 12px;
height: 12px;
border-radius: 50%;
line-height: 12px;
font-size: 9px;
text-align: center;
background: #000;
color: #fff;
}
Let me know in case you have any questions.
Regards,
AJ

You can use the :empty pseudo-class. However your server will need to output the .attr-marker div with no whitespace.
Like...
<div class="attr-marker"></div>
not
<div class="attr-marker">
</div>
And then the css would be,
.attr-marker:empty {
display: block;
width: 12px;
height: 12px;
border-radius: 50%;
line-height: 12px;
font-size: 9px;
text-align: center;
background: #000;
color: #fff;
}
Additional reading, https://developer.mozilla.org/en-US/docs/Web/CSS/:empty

Writing .attr-marker text { } means you want to access child elements with tag text of class attr-maker. No such tag exists in HTML.
There are specific CSS text and CSS font properties which work only on text. They are to be used in the text's parent element (in your case div with class name attr-marker):
.attr-marker {
/* text properties */
/* some other properties */
}
Properties like display: block;, width: 12px;, height: 12px; and so on, won't work on text.
That being said, you don't need to worry whether your CSS properties will be applied to the text or to the whole div. If you're using the right properties, you can be sure they are only applied to the text.
As for the content(text) presence, you don't need to worry about it. If there is no text, CSS won't change anything.

Either add another class to that div from the server side if it will send content or wrap content with another element and give it some styling.
Edit:
If you know exact position of your element then you can select it with nth-child pseudo-class:
.attr-marker:nth-child(1):not(:empty) {
border: 1px solid #333;
background-color: yellow;
}

If these markers are block rendered elements, the browser should not display them, unless they have content, therefore you can trust the browser to not render the elements with no content, use the max-width and max-height properties below:
.attr-marker {
display: block;
max-width: 12px;
max-height: 12px;
border-radius: 50%;
line-height: 12px;
font-size: 9px;
text-align: center;
background: #000;
color: #fff;
/*If required*/
overflow:hidden
}

How to make a website to occupy the entire element?

I will specify. I have this rather simple website, on which I have three button/links which I made to diplay (with a little magic of JS) within one of it's elements (section with id "content"). It works fine and all but (and it's a big one) for some reason it only display it in a tiny window in a upper-left corner with like a scroll down bar and I can't make it to occupy the entire 'section'.
JS I've got is:
function load_projects() {
document.getElementById("content").innerHTML='<object type="text/html" data="projects.html" ></object>';
}
and an element :
<section class="box sect shadow" id="content">
</section>
css for it:
.box {
background-color: #D3D3D3;
width: 1000px;
height: 600px;
margin-right: 20%;
margin-left: 20%;
margin-top: 20px;
border-radius: 20px;
}
.sect {
border-top-right-radius: 10px;
border-top-left-radius: 10px;
}
.shadow {
-webkit-box-shadow: 10px 11px 31px -2px rgba(120,124,125,0.61);
-moz-box-shadow: 10px 11px 31px -2px rgba(120,124,125,0.61);
box-shadow: 10px 11px 31px -2px rgba(120,124,125,0.61);
}
So to summerise: I have a 'nav' element with three button/links that are being displayed within 'section' element, but instesd of occupying the whole surface of 'section' links are being displayed in a tiny, scroll-down window.
what am I doing wrong? How can I fix it?

You've not specified any styles for the object that you're adding, so it doesn't know to fill the container element.
Add the following css...
#content object {
height: 100%;
width: 100%;
}

How to add HTML tags inside Title attribue [duplicate]

Example:
Link
How do I change the presentation of the "title" attribute in the browser?. By default, it just has yellow background and small font. I would like to make it bigger and change the background color.
Is there a CSS way to style the title attribute?

It seems that there is in fact a pure CSS solution, requiring only the css attr expression, generated content and attribute selectors (which suggests that it works as far back as IE8):
https://jsfiddle.net/z42r2vv0/2/
a {
position: relative;
display: inline-block;
margin-top: 20px;
}
a[title]:hover::after {
content: attr(title);
position: absolute;
top: -100%;
left: 0;
}
<a href="http://www.google.com/" title="Hello world!">
Hover over me
</a>
update w/ input from #ViROscar: please note that it's not necessary to use any specific attribute, although I've used the "title" attribute in the example above; actually my recommendation would be to use the "alt" attribute, as there is some chance that the content will be accessible to users unable to benefit from CSS.
update again I'm not changing the code because the "title" attribute has basically come to mean the "tooltip" attribute, and it's probably not a good idea to hide important text inside a field only accessible on hover, but if you're interested in making this text accessible the "aria-label" attribute seems like the best place for it: https://developer.mozilla.org/en-US/docs/Web/Accessibility/ARIA/ARIA_Techniques/Using_the_aria-label_attribute

You can't style an actual title attribute
How the text in the title attribute is displayed is defined by the browser and varies from browser to browser. It's not possible for a webpage to apply any style to the tooltip that the browser displays based on the title attribute.
However, you can create something very similar using other attributes.
You can make a pseudo-tooltip with CSS and a custom attribute (e.g. data-title)
For this, I'd use a data-title attribute. data-* attributes are a method to store custom data in DOM elements/HTML. There are multiple ways of accessing them. Importantly, they can be selected by CSS.
Given that you can use CSS to select elements with data-title attributes, you can then use CSS to create :after (or :before) content that contains the value of the attribute using attr().
Styled tooltip Examples
Bigger and with a different background color (per question's request):
[data-title]:hover:after {
opacity: 1;
transition: all 0.1s ease 0.5s;
visibility: visible;
}
[data-title]:after {
content: attr(data-title);
background-color: #00FF00;
color: #111;
font-size: 150%;
position: absolute;
padding: 1px 5px 2px 5px;
bottom: -1.6em;
left: 100%;
white-space: nowrap;
box-shadow: 1px 1px 3px #222222;
opacity: 0;
border: 1px solid #111111;
z-index: 99999;
visibility: hidden;
}
[data-title] {
position: relative;
}
Link with styled tooltip (bigger and with a different background color, as requested in the question)<br/>
Link with normal tooltip
More elaborate styling (adapted from this blog post):
[data-title]:hover:after {
opacity: 1;
transition: all 0.1s ease 0.5s;
visibility: visible;
}
[data-title]:after {
content: attr(data-title);
position: absolute;
bottom: -1.6em;
left: 100%;
padding: 4px 4px 4px 8px;
color: #222;
white-space: nowrap;
-moz-border-radius: 5px;
-webkit-border-radius: 5px;
border-radius: 5px;
-moz-box-shadow: 0px 0px 4px #222;
-webkit-box-shadow: 0px 0px 4px #222;
box-shadow: 0px 0px 4px #222;
background-image: -moz-linear-gradient(top, #f8f8f8, #cccccc);
background-image: -webkit-gradient(linear,left top,left bottom,color-stop(0, #f8f8f8),color-stop(1, #cccccc));
background-image: -webkit-linear-gradient(top, #f8f8f8, #cccccc);
background-image: -moz-linear-gradient(top, #f8f8f8, #cccccc);
background-image: -ms-linear-gradient(top, #f8f8f8, #cccccc);
background-image: -o-linear-gradient(top, #f8f8f8, #cccccc);
opacity: 0;
z-index: 99999;
visibility: hidden;
}
[data-title] {
position: relative;
}
Link with styled tooltip<br/>
Link with normal tooltip
Known issues
Unlike a real title tooltip, the tooltip produced by the above CSS is not, necessarily, guaranteed to be visible on the page (i.e. it might be outside the visible area). On the other hand, it is guaranteed to be within the current window, which is not the case for an actual tooltip.
In addition, the pseudo-tooltip is positioned relative to the element that has the pseudo-tooltip rather than relative to where the mouse is on that element. You may want to fine-tune where the pseudo-tooltip is displayed. Having it appear in a known location relative to the element can be a benefit or a drawback, depending on the situation.
You can't use :before or :after on elements which are not containers
There's a good explanation in this answer to "Can I use a :before or :after pseudo-element on an input field?"
Effectively, this means that you can't use this method directly on elements like <input type="text"/>, <textarea/>, <img>, etc. The easy solution is to wrap the element that's not a container in a <span> or <div> and have the pseudo-tooltip on the container.
Examples of using a pseudo-tooltip on a <span> wrapping a non-container element:
[data-title]:hover:after {
opacity: 1;
transition: all 0.1s ease 0.5s;
visibility: visible;
}
[data-title]:after {
content: attr(data-title);
background-color: #00FF00;
color: #111;
font-size: 150%;
position: absolute;
padding: 1px 5px 2px 5px;
bottom: -1.6em;
left: 100%;
white-space: nowrap;
box-shadow: 1px 1px 3px #222222;
opacity: 0;
border: 1px solid #111111;
z-index: 99999;
visibility: hidden;
}
[data-title] {
position: relative;
}
.pseudo-tooltip-wrapper {
/*This causes the wrapping element to be the same size as what it contains.*/
display: inline-block;
}
Text input with a pseudo-tooltip:<br/>
<span class="pseudo-tooltip-wrapper" data-title="input type="text""><input type='text'></span><br/><br/><br/>
Textarea with a pseudo-tooltip:<br/>
<span class="pseudo-tooltip-wrapper" data-title="this is a textarea"><textarea data-title="this is a textarea"></textarea></span><br/>
From the code on the blog post linked above (which I first saw in an answer here that plagiarized it), it appeared obvious to me to use a data-* attribute instead of the title attribute. Doing so was also suggested in a comment by snostorm on that (now deleted) answer.

Here is an example of how to do it:
a.tip {
border-bottom: 1px dashed;
text-decoration: none
}
a.tip:hover {
cursor: help;
position: relative
}
a.tip span {
display: none
}
a.tip:hover span {
border: #c0c0c0 1px dotted;
padding: 5px 20px 5px 5px;
display: block;
z-index: 100;
background: url(../images/status-info.png) #f0f0f0 no-repeat 100% 5%;
left: 0px;
margin: 10px;
width: 250px;
position: absolute;
top: 10px;
text-decoration: none
}
Link<span>This is the CSS tooltip showing up when you mouse over the link</span>

CSS can't change the tooltip appearance. It is browser/OS-dependent. If you want something different you'll have to use Javascript to generate markup when you hover over the element instead of the default tooltip.

I have found the answer here: http://www.webdesignerdepot.com/2012/11/how-to-create-a-simple-css3-tooltip/
my own code goes like this, I have changed the attribute name, if you maintain the title name for the attribute you end up having two popups for the same text, another change is that my text on hovering displays underneath the exposed text.
.tags {
display: inline;
position: relative;
}
.tags:hover:after {
background: #333;
background: rgba(0, 0, 0, .8);
border-radius: 5px;
bottom: -34px;
color: #fff;
content: attr(data-gloss);
left: 20%;
padding: 5px 15px;
position: absolute;
z-index: 98;
width: 350px;
}
.tags:hover:before {
border: solid;
border-color: #333 transparent;
border-width: 0 6px 6px 6px;
bottom: -4px;
content: "";
left: 50%;
position: absolute;
z-index: 99;
}
<a class="tags" data-gloss="Text shown on hovering">Exposed text</a>

I thought i'd post my 20 lines JavaScript solution here. It is not perfect, but may be useful for some depending on what you need from your tooltips.
When to use it
Automatically styles the tooltip for all HTML elements with a TITLE attribute defined (this includes elements dynamically added to the document in the future)
No Javascript/HTML changes or hacks required for every tooltip (just the TITLE attribute, semantically clear)
Very light (adds about 300 bytes gzipped and minified)
You want only a very basic styleable tooltip
When NOT to use
Requires jQuery, so do not use if you don't use jQuery
Bad support for nested elements that both have tooltips
You need more than one tooltip on the screen at the same time
You need the tooltip to disappear after some time
The code
// Use a closure to keep vars out of global scope
(function () {
var ID = "tooltip", CLS_ON = "tooltip_ON", FOLLOW = true,
DATA = "_tooltip", OFFSET_X = 20, OFFSET_Y = 10,
showAt = function (e) {
var ntop = e.pageY + OFFSET_Y, nleft = e.pageX + OFFSET_X;
$("#" + ID).html($(e.target).data(DATA)).css({
position: "absolute", top: ntop, left: nleft
}).show();
};
$(document).on("mouseenter", "*[title]", function (e) {
$(this).data(DATA, $(this).attr("title"));
$(this).removeAttr("title").addClass(CLS_ON);
$("<div id='" + ID + "' />").appendTo("body");
showAt(e);
});
$(document).on("mouseleave", "." + CLS_ON, function (e) {
$(this).attr("title", $(this).data(DATA)).removeClass(CLS_ON);
$("#" + ID).remove();
});
if (FOLLOW) { $(document).on("mousemove", "." + CLS_ON, showAt); }
}());
Paste it anywhere, it should work even when you run this code before the DOM is ready (it just won't show your tooltips until DOM is ready).
Customize
You can change the var declarations on the second line to customize it a bit.
var ID = "tooltip"; // The ID of the styleable tooltip
var CLS_ON = "tooltip_ON"; // Does not matter, make it somewhat unique
var FOLLOW = true; // TRUE to enable mouse following, FALSE to have static tooltips
var DATA = "_tooltip"; // Does not matter, make it somewhat unique
var OFFSET_X = 20, OFFSET_Y = 10; // Tooltip's distance to the cursor
Style
You can now style your tooltips using the following CSS:
#tooltip {
background: #fff;
border: 1px solid red;
padding: 3px 10px;
}

A jsfiddle for custom tooltip pattern is Here
It is based on CSS Positioning and pseduo class selectors
Check MDN docs for cross-browser support of pseudo classes
<!-- HTML -->
<p>
<a href="http://www.google.com/" class="tooltip">
I am a
<span> (This website rocks) </span></a> a developer.
</p>
/*CSS*/
a.tooltip {
position: relative;
}
a.tooltip span {
display: none;
}
a.tooltip:hover span, a.tooltip:focus span {
display:block;
position:absolute;
top:1em;
left:1.5em;
padding: 0.2em 0.6em;
border:1px solid #996633;
background-color:#FFFF66;
color:#000;
}

Native tooltip cannot be styled.
That being said, you can use some library that would show styles floating layers when element is being hovered (instead of the native tooltips, and suppress them) requiring little or no code modifications...

You cannot style the default browser tooltip. But you can use javascript to create your own custom HTML tooltips.

a[title="My site"] {
color: red;
}
This also works with any attribute you want to add for instance:
HTML
<div class="my_class" anything="whatever">My Stuff</div>
CSS
.my_class[anything="whatever"] {
color: red;
}
See it work at: http://jsfiddle.net/vpYWE/1/

Odd behavior of :first-letter in Chrome

Adding what seems to be an innocuous class to an element having a class containing :first-letter causes the first letter, under some circumstances, to be rendered incorrectly. An element originally has class "unindent", and then class "menuitemon" is added. The fiddle http://jsfiddle.net/pgf3reyt/4/ shows this working on one element, and not working on another. Works OK in Firefox.
p.unindent {
color: #555555;
background-color: #e6e6e6;
border-bottom: 1px solid #d3d3d3;
border-left: 1px solid rgba(0,0,0,0); /* so things are the same size so we don't develop scroll bars*/
border-right: 1px solid rgba(0,0,0,0);
border-top: 1px solid rgba(0,0,0,0);
padding-top: 2px;
padding-bottom: 2px;
padding-left: 25px;
padding-right: 5px;
margin-top: 0;
margin-bottom: 0;
}
p.unindent:first-letter {
margin-left: -20px;
}
p.unindent.menuitemon {
color: #e6e6e6;
background: #555555;
border: 1px solid #222222;
border-radius: 4px;
}
Can someone point out what I might be doing wrong that's causing this?

You've done nothing wrong. Apparently Chrome has decided that for version 41, it'll screw up repainting the :first-letter pseudo-element (incidentally, Chrome is notorious for repaint bugs). If you declare the "menuitemon" class in the markup, it has no trouble rendering the pseudo-element with the negative margin. It's only when you add it dynamically that it screws up.
Fortunately, unlike the cascade resolution bug that affected Chrome 39 -> 40, I was able to work around this very trivially by using a negative text-indent on the element instead of a negative margin on :first-letter:
p.unindent {
text-indent: -20px;
/* ... */
}
/*
p.unindent:first-letter {
margin-left: -20px;
}
*/

The pseudo element (:first-letter) only works if the parent element is a block container box (in other words, it doesn't work on the first letter of display: inline; elements.)
You must set pseudo's parent to
.parent {display:block}

.menutitle {
/* font-size: 1.2em; */
font-weight: bold;
/* font-style: italic; */
margin-left: 0;
}
the moment i commented those two lines it worked properly
EDIT
nop it only solved half the problem
Codepen

CSS add a fat "frame" around an IMG without changing IMG positioning

I have rows of thumbnails in a <div> with only a small margin/border/padding set. I'd like to add a 'focus' class to highlight one thumbnail on the page during a CSS transition, i.e. 'div.thumb.focus'
Is there any easy CSS Trick to wrap a frame around the 'div.thumb' WITHOUT re-positioning the div.thumb in the page?
The div.thumbs are all absolutely positioned within a container. And I want the frame to be THICKER than the margin/padding between div.thumb. It can live on a higher z-index, and partially cover neighboring thumbs, as long as the click events read the div.thumb.focus. An easy JQuery solution is acceptable.
// using LESS syntax
.container {
position: relative;
.thumb {
&.focus {
<need help here>
}
top: #top;
left: #left;
position: absolute;
margin: #margin;
padding: #padding;
img {
width: #width;
height: #height;
}
}
}

A few solutions come to mind (not Bootstrap specific):
Using a better box model, but it may affect your padding:
box-sizing: border-box
border: 10px solid red
Or using an hard inset shadow that'll look like a border:
box-shadow: inset 0 0 0 10px red
You could use an outline but it would overflow outside the box without affecting its dimensions:
outline: 10px solid red

Now, I'm not too familiar with LESS, so I've just done this in regular CSS.
There are a few options you could choose.
Add a Negative Margin
.thumb.focus{
margin-top: -4px;
margin-left: -4px;
border: 4px solid blue;
}
This may not be suitable for your case, however, as you already have a margin set. It may be useful for others though.
Add a Shadow
.thumb.focus{
box-shadow: 0 0 0 4px blue; //use inset if you want it inside the thumb
}
This could work well, but not if you want multiple colours/thicknesses on some sides.
Use box-sizing
.thumb.focus{
box-sizing: border-box;
border: 4px solid blue;
}
The main problem with this would be browser support.
Use Outline
.thumb.focus{
outline: 4px solid blue;
}
This has a similar issue to the box shadow I believe.