I work with a website that has a rich text box which gives direct access to the underlying HTML code. I can edit the HTML code, but when I save it, the website intervenes. <style> elements disappear, but <div> and <span> elements remain and seem to keep all their attributes.
I would like a certain <span> element to show a tooltip when hovered over. I've considered using the title attribute (it works), but it's not flexible enough for my need.
Is it possible (and how) to implement a tooltip like shown here without a <style> element, using only attributes of <div> and <span> elements? I was thinking of attributes such as style, onmouseover, and onmouseout, but feel free to suggest other ones as you see fit.
So assuming you have no way to include seperate css or js on page load I came up with something that works with only html:
<!DOCTYPE html>
<html>
<body style="text-align:center;">
<h2>Top Tooltip w/ Bottom Arrow</h2>
<div style="position: relative;
display: inline-block;
border-bottom: 1px dotted black;"
onmouseover="tooltip.style.visibility='visible'"
onmouseout="tooltip.style.visibility='hidden'">Hover over me
<span id="tooltip" style="visibility: hidden;">
<span style="width: 120px;
background-color: black;
color: #fff;
text-align: center;
border-radius: 6px;
padding: 5px 0;
position: absolute;
z-index: 1;
bottom: 150%;
left: 50%;
margin-left: -60px;">Tooltip text</span>
<span style="content: "";
position: absolute;
top: 100%;
left: 50%;
margin-left: -5px;
border-width: 5px;
border-style: solid;
border-color: black transparent transparent transparent;"></span>
</span>
</div>
With this you can just add a hovertip attribute to any element like <p hovertip="tip">hover this</p>.
var tooltip = document.getElementById("tooltip");
document.addEventListener("mousemove", (e) => {
elementMouseIsOver = document.elementFromPoint(e.clientX, e.clientY);
if (elementMouseIsOver !== null) {
if (elementMouseIsOver.getAttribute("hovertip") == null) {
tooltip.style.display = "none";
tooltip.innerText = "";
} else {
tooltip.style.display = "block";
tooltip.innerText = elementMouseIsOver.getAttribute("hovertip");
};
};
tooltip.style.top = e.clientY + "px";
tooltip.style.left = e.clientX + "px";
});
#tooltip {
border-radius: 5px;
padding: 5px;
background-color: darkslategray;
opacity: 0.9;
color: white;
position: fixed;
left: 0px;
top: 0px;
display: none;
pointer-events: none;
}
<div id="tooltip"></div>
<textarea hovertip="asdb"></textarea><br>
<p>wqe qwej jiofdas jare oias. dgf <span hovertip="the tooltip" style="text-decoration: underline;">gfrsd</span> sfgd ho, sfdg sdfr ert asd.</p>
Related
I have horizontal scroll box i.e Row column structure in it. Thats working fine
Now I need to show selected box as well. Need to show box selected as per image i have attached which is infront after scroll.
need help in this doing this?
My html structure is like this using angular JS and ionic.
<div class="row" <div class="row" style="width:100%;overflow-x:scroll;">
<div class="col col70" style="width:200px;height:150px;border:1px solid black;">
</div>
<div class="col col70" style="width:200px;height:150px;border:1px solid black;">
</div>
</div>
I have structure like this its look like []1
Now how I can show div is selected using javascript.
If what I understood was correct, this is what you meant. If not please leave a comment.
I just made the scroll div move along adding or subtracting 5 to its css position left ever the div was scrolled.
var lastX = $(".row").scrollLeft();
$(".row").scroll(function() {
var position = $(".scroll-box").position();
var position1 = $(".fa-caret-down").position();
const $el = $(".row");
let currX = $el.scrollLeft();
if (currX > lastX) {
$(".scroll-box").css("left", position.left + 5);
$(".fa-caret-down").css("left", position1.left + 5);
lastX = $el.scrollLeft();
}
if (currX < lastX) {
$(".scroll-box").css("left", position.left - 5);
$(".fa-caret-down").css("left", position1.left - 5);
lastX = $el.scrollLeft();
}
});
.scroll-box {
position: fixed;
bottom: 75px;
left: 125px;
}
.fa-caret-down {
position: fixed;
left: 215px;
bottom: 40px;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script src='https://kit.fontawesome.com/a076d05399.js'></script>
<div class="row" style="width: 100%; overflow-x:scroll;">
<div style="width: 150%; height: 150%;">The following scroll box follows the scroller.</div>
<br><br><br><br><br><br><br><br><br>
<div class="scroll-box col col70" style="width:200px;height:150px;border:1px solid black;">
</div>
<i class='fas fa-caret-down' style='font-size:48px;color:red'></i>
</div>
You can use something like this.
div.scrollmenu {
background-color: #333;
overflow: auto;
white-space: nowrap;
}
div.scrollmenu a {
height: 300px;
width: 300px;
border: 1px solid white;
display: inline-block;
color: white;
text-align: center;
padding: 14px;
text-decoration: none;
}
div.scrollmenu a:hover {
background-color: #777;
}
<div class="scrollmenu">
<a>A</a>
<a>B</a>
<a>C</a>
<a>D</a>
<a>E</a>
<a>F</a>
<a>G</a>
<a>H</a>
<a>I</a>
<a>J</a>
<a>K</a>
<a>L</a>
<a>M</a>
<a>N</a>
<a>O</a>
<a>P</a>
<a>Q</a>
<a>R</a>
<a>S</a>
<a>T</a>
<a>U</a>
<a>V</a>
<a>W</a>
<a>X</a>
<a>Y</a>
<a>Z</a>
</div>
I made a copy of JSbin for practice, JSbin link here, actual site link here.
This is just a practice for making the front-end of websites as I just started learning web dev little over a week ago. You can put in html, css and javascript in the editboxes, and a page spit out in Output just like the actual JSbin.
But the problem is that you can resize the divs pass other divs.
My idea to prevent this from happening is:
1. get the editboxes' current positions
2. store the left/right position of the editbox if resized to 10% window width
3. set the min/max left and right for the draggable div
And hence the question. How do I set the max-left/right for the draggable.
Also, any idea on why the draggable before Output div is diificult to drag to the right.
Edit: How the site is structured. When you drag the .drag (.resize in my JSbin code), it changes its left and right div's left and right. And the draggables are contained in the #main's div.
<div id="main>
<div id="HTML"></div>
<div class="drag"></div> //drag this left and right to change the right of the HTML and left of CSS
<div id="CSS"></div>
<div class="drag"></div> //drag this left and right to change the right of the Css and left of JavaScript
<div id="JavaScript"></div>
<div class="drag"></div> //drag this left and right to change the right of the JavaScript and left of Output
<div id="Output"></div>
</div>
By taking advantage of jQuery Ui's built in draggable event which gives us position information and also allows us to set position on drag.
I came up with the following solution:
var dragDistance = 100;
$(".resize").draggable({
axis: "x",
containment: "parent",
drag: function( event, ui){
ui.position.left = Math.min( ui.position.left, ui.helper.next().offset().left + ui.helper.next().width()-dragDistance);
ui.position.left = Math.max(ui.position.left, ui.helper.prev().offset().left + dragDistance);
resize();
}
});
I removed your onDrag function in the process so it wouldn't interfere.
See the bin here:
JSBin
NOTES:
I haven't looked into it and maybe its just a JSBin issue because I can't reproduce it in your live site. But if the boundary lines disappear while you are dragging the code won't work. You'll probably have to increase the drag distance to the point where the lines don't disappear while dragging.
You may notice you have difficulty dragging the Output box that seems to be caused by the Iframe you have inside. If I comment out the IFrame I can drag it just fine. I haven't looked for a solution but perhaps experiment with some padding or margins so that the Iframe is not pegged so closely against the border. Or maybe if you detached it from the DOM while dragging that would fix it.
Use containment
Constrains dragging to within the bounds of the specified element or
region.
For Eg:
$( ".selector" ).draggable({
containment: "parent"
});
Click Here For a Demo
You could manually keep track of the position of each of the windows in the dragging() function, and only call the resize() method if they don't overlap:
function dragging(event) {
var CSS_left = parseInt($("#CSS").css("left"));
var JavaScript_left = parseInt($("#JavaScript").css("left"));
var Output_left = parseInt($("#Output").css("left"));
var offset = 100;
var checkOverlap1 = $(event.target).is("#1")
&& event.clientX + offset <= JavaScript_left
&& event.clientX >= offset;
var checkOverlap2 = $(event.target).is("#2")
&& event.clientX + offset <= Output_left
&& event.clientX - offset >= CSS_left;
var checkOverlap3 = $(event.target).is("#3")
&& event.clientX - offset >= JavaScript_left
&& event.clientX <= codeboxWidth - offset;
if (checkOverlap1 || checkOverlap2 || checkOverlap3) {
resize(event);
}
}
Here's the complete example - I also refactored/simplified your "resize" function.
var codeboxWidth = $("#codebox").width();
$(document).ready(function() {
$("#codebox").height($(window).height() - $("#topbar").height());
$(".content").height($("#codebox").height());
$(".editbox").height($(".content").height() - $(".contentheader").height());
$("#HTML").css("left", 0);
$("#HTML").css("right", "75%");
$("#CSS").css("left", "25%");
$("#CSS").css("right", "50%");
$("#JavaScript").css("left", "50%");
$("#JavaScript").css("right", "25%");
$("#Output").css("left", "75%");
$("#Output").css("right", 0);
});
function resize(event) {
if ($(event.target).is("#1")) {
$("#CSS").css("left", event.clientX);
$("#HTML").css("right", codeboxWidth - event.clientX);
}
if ($(event.target).is("#2")) {
$("#JavaScript").css("left", event.clientX);
$("#CSS").css("right", codeboxWidth - event.clientX);
}
if ($(event.target).is("#3")) {
$("#Output").css("left", event.clientX);
$("#JavaScript").css("right", codeboxWidth - event.clientX);
}
}
$(".resize").draggable({
axis: "x"
});
function dragging(event) {
var CSS_left = parseInt($("#CSS").css("left"));
var JavaScript_left = parseInt($("#JavaScript").css("left"));
var Output_left = parseInt($("#Output").css("left"));
var offset = 100;
var checkOverlap1 = $(event.target).is("#1")
&& event.clientX + offset <= JavaScript_left
&& event.clientX >= offset;
var checkOverlap2 = $(event.target).is("#2")
&& event.clientX + offset <= Output_left
&& event.clientX - offset >= CSS_left;
var checkOverlap3 = $(event.target).is("#3")
&& event.clientX - offset >= JavaScript_left
&& event.clientX <= codeboxWidth - offset;
if (checkOverlap1 || checkOverlap2 || checkOverlap3) {
resize(event);
}
}
body {
margin: 0;
padding: 0;
overflow-y: hidden;
overflow-x: hidden;
background: #F7F7F7;
font-family: Arial;
}
#topbar {
margin: 0;
padding: 0;
width: 100%;
height: 35px;
background: #EEEEEE;
position: relative;
}
h2 {
margin: 2px 0 0 0;
padding: 0;
float: left;
position: absolute;
}
#control {
width: 100%;
margin: 8px 0 0 0;
padding: 0;
position: absolute;
text-align: center;
}
.option {
margin: 0 -5px 0 0;
padding: 5px 10px 5px 10px;
text-align: center;
border-top: 1px solid #CCC;
border-bottom: 1px solid #CCC;
border-left: 1px solid #CCC;
text-decoration: none;
font-size: 0.9em;
color: black;
}
.option:first-child {
border-bottom-left-radius: 5px;
border-top-left-radius: 5px;
}
.option:last-child {
border-right: 1px solid #CCC;
border-bottom-right-radius: 5px;
border-top-right-radius: 5px;
}
.option:hover {
background: #dee5e5;
}
.opactive {
background: #EBF3FF;
}
.opinactive {
background: 0;
}
.active {
display: block;
}
.inactive {
display: none;
}
#codebox {
margin: 0;
padding: 0 width: 100%;
position: static;
top: 35px;
background: white;
}
.content {
margin: 0;
padding: 0;
min-width: 10%;
max-width: 100%;
position: absolute;
float: left;
color: #6DCAFC;
background: #F7F7F7;
overflow: hidden;
}
.resize {
top: 35px;
bottom: 0px;
width: 1px;
margin-left: 0;
height: 100%;
right: auto;
opacity: 0;
position: absolute;
cursor: ew-resize;
border-left-width: 1px;
border-left-style: solid;
border-left-color: rgba(218, 218, 218, 0.498039);
z-index: 99999;
background: #666;
}
.contentheader {
margin: 0;
padding: 0;
background: transparent;
position: relative;
}
.selectedcontent {
background: white;
}
.contentbox {
width: 100%;
height: 100%;
background: transparent;
position: relative;
box-sizing: border-box;
border-right: 1px solid darkgrey;
overflow: hidden;
}
.editbox {
width: 100%;
height: 100%;
background: transparent;
overflow: hidden;
}
.textareabox {
background: transparent;
min-width: 100%;
max-width: 100%;
min-height: 100%;
max-height: 100%;
border: none;
outline: none;
resize: none;
}
<!DOCTYPE html>
<html>
<head>
<title>Project 04</title>
<link rel="stylesheet" type="text/css" href="styles.css">
<link rel="stylesheet" href="https://ajax.googleapis.com/ajax/libs/jqueryui/1.11.4/themes/smoothness/jquery-ui.css">
</head>
<body>
<div id="topbar">
<h2>Code Runner</h2>
<div id="control">
HTML
CSS
JavaScript
Output
</div>
</div>
<div id="codebox">
<div id="HTML" class="content active">
<div class="contentbox">
<div class="contentheader">HTML</div>
<div class="editbox" id="HTMLeditbox">
<textarea id="HTMLcode" class="textareabox"></textarea>
</div>
</div>
</div>
<div class="resize active" id="1" style="left: 25%" ondrag="dragging(event)"></div>
<div id="CSS" class="content active">
<div class="contentbox">
<div class="contentheader">CSS</div>
<div class="editbox" id="CSSeditbox">
<textarea id="CSScode" class="textareabox"></textarea>
</div>
</div>
</div>
<div class="resize active" id="2" style="left: 50%" ondrag="dragging(event)"></div>
<div id="JavaScript" class="content active">
<div class="contentbox">
<div class="contentheader">JavaScript</div>
<div class="editbox" id="JavaScripteditbox">
<textarea id="JavaScriptcode" class="textareabox"></textarea>
</div>
</div>
</div>
<div class="resize active" id="3" style="left: 75%" ondrag="dragging(event)"></div>
<div id="Output" class="content active">
<div class="contentbox">
<div class="contentheader">Output</div>
<div class="editbox" id="Outputbox">
</div>
</div>
</div>
</div>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.0/jquery.min.js"></script>
<script src="https://ajax.googleapis.com/ajax/libs/jqueryui/1.11.4/jquery-ui.min.js"></script>
<script type="text/javascript" src="jscript.js"></script>
</body>
</html>
Here's a JSBin based on your example.
How do I allow the user to click on the button that says "click me" appears on mouseenter of another button.
Here is the code -
<div class="hint"> ?</div>
<div class="desc">
This is supposed to appear on hover
This is supposed to appear on hover
This is supposed to appear on hover
This is supposed to appear on hover
<button type="button">
Click me
</button>
</div>
$(document).ready(function() {
var hint = $('.hint');
var desc = $('.desc');
hint.mouseenter(function() {
desc.show();
});
hint.mouseleave(function() {
desc.hide();
});
});
Here is the Demo
Just Place the .desc inside the .hint.
Fiddle
For the basic tooltip, you want:
<div title="This is my tooltip">
For fancier tooltips, See this
Wrap your html with another div and add mouseenter and mouseleave event to this.
var con = $('.container');
var desc = $('.desc');
con.mouseenter(function() {
desc.show();
});
con.mouseleave(function() {
desc.hide();
});
.hint {
padding: 20px;
background: white;
width: 10px;
height: 10px;
border-radius: 50%;
}
.desc {
display: none;
width: 200px;
background: white;
z-index: 3;
border: 1px solid #CCC;
border-radius: 3px;
top: 20px;
left: -5px;
padding: 12px;
color: #666;
font-size: 12px;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="container">
<div class="hint"> ?</div>
<div class="desc">
This is supposed to appear on hover This is supposed to appear on hover This is supposed to appear on hover This is supposed to appear on hover
<button type="button">
Click me
</button>
</div>
</div>
Make the .desc div a child of your .hint
$(document).ready(function() {
var hint = $('.hint');
var desc = $('.desc');
hint.mouseenter(function() {
desc.show();
});
hint.mouseleave(function() {
desc.hide();
});
});
.hint {
padding: 20px;
background: white;
width: 10px;
height: 10px;
border-radius: 50%;
text-align: center;
position: relative;
}
.desc {
display: none;
width: 200px;
background: white;
z-index: 3;
border: 1px solid #CCC;
border-radius: 3px;
top: 20px;
left: -5px;
padding: 12px;
color: #666;
font-size: 12px;
position: absolute;
top: 50%;
left: 50%;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<div class="hint"> ?<div class="desc">
This is supposed to appear on hover
This is supposed to appear on hover
This is supposed to appear on hover
This is supposed to appear on hover
<button type="button">
Click me
</button>
</div></div>
See fiddle
Updated Fiddle.
If you can't change the structure of your HTML code try to wait a little before hidding a desc div using setTimeout() so if the user enter mouse inside this div you will not hide it by clearing the timeout check the example bellow :
$(document).ready(function() {
var hide_timeout;
var hide_after = 100; //100 ms
var hint = $('.hint');
var desc = $('.desc');
hint.mouseenter(function() {
desc.show();
});
hint.mouseleave(function() {
hide_timeout = setTimeout(function(){
desc.hide();
},hide_after);
});
desc.mouseenter(function() {
clearTimeout(hide_timeout);
});
desc.mouseleave(function() {
desc.hide();
});
});
Hope this helps.
$(document).ready(function() {
var hide_timeout;
var hide_after = 100; //100 ms
var hint = $('.hint');
var desc = $('.desc');
hint.mouseenter(function() {
desc.show();
});
hint.mouseleave(function() {
hide_timeout = setTimeout(function(){
desc.hide();
},hide_after);
});
desc.mouseenter(function() {
clearTimeout(hide_timeout);
});
desc.mouseleave(function() {
desc.hide();
});
});
.hint {
padding: 20px;
background: white;
width: 10px;
height: 10px;
border-radius: 50%;
}
.desc {
display: none;
width: 200px;
background: white;
z-index: 3;
border: 1px solid #CCC;
border-radius: 3px;
top: 20px;
left: -5px;
padding: 12px;
color: #666;
font-size: 12px;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="hint"> ?</div>
<div class="desc">
This is supposed to appear on hover
This is supposed to appear on hover
This is supposed to appear on hover
This is supposed to appear on hover
<button type="button">
Click me
</button>
</div>
You have 2 options
1 - You can add the show() and hide() when the tooltip is hover : Fiddle
2 - You can use only css to show or hide it. Not sure you need JS for simple things like that.
This Demo shows what I think you want to achieve. The trick is to also catch the event that is triggerd, when the mouse enters a other element.
$('*').not('.hint').not('.desc').not('.desc>button').mouseenter(function() {
desc.hide();
});
$(function(){
$('.desc').hide();
$(document).on('mouseenter','.hint',function(){
$('.desc').show();
})
});
UPDATE - Still unresolved, last updated 9 p.m.
Problem
a) How do I use .offset() to position these tooltips relatively close to their image (ie. If I click on the "Allum" headshot, their tooltip pops up above their image)
Where I'm at
I'm trying to use jQuery's .offset() so that when an image (.headshot in index.html) of a politician is clicked, the tooltip/popup, containing information about their age, party etc. is positioned pretty close to their image. Right now I have dynamic content being pulled into these tooltips, but it's always in the same spot.
scripts.js (Politician and Positioning snippet)
// Shows a popup with MLA information
$(".headshot").click(function(){
var idx = $(this).index();
$(".tooltip").fadeIn("slow");
$(".tooltipName").html(MLAs[idx].Name);
$(".tooltipParty").html(MLAs[idx].Party).prepend("<strong>Party: </strong>");
$(".tooltipConstuency").html(MLAs[idx].Constuency).prepend("<strong>Constuency: </strong>");
$(".tooltipEthnicity").html(MLAs[idx].Ethnicity).prepend("<strong>Ethnicity: </strong>");
$(".tooltipAge").html(MLAs[idx].Age).prepend("<strong>Age: </strong>").append(" years old");
});
// Positioning of the tooltips
$('img').each(function(){
var img = $(this);
img.click(function(){
$('.tooltip').show(100)
// .text(img.attr('alt'))
.offset({
top: img.offset().top + img.height(),
left: img.offset().left
});
});
});
index.html(Headshot snippet)
<div class="columns">
<img src="assets/img/headshots/allan.jpg" alt="" id="0" class="headshot NDP Female White">
<img src="assets/img/headshots/allum.jpg" alt="" id="1" class="headshot NDP Male White">
<img src="assets/img/headshots/altemeyer.jpg" alt="" id="2" class="headshot NDP Male White">
</div>
tooltip.scss
/*----------------------------------
TOOLTIP
----------------------------------*/
.tooltip {
display: none;
position: relative;
left: 45px;
top: -5px;
}
.info {
#include serifLight;
background: $yellow;
color: $black;
font-size: 1.4rem;
padding: 12px;
width: 15%;
// text-align: center;
p {
margin: 0px;
padding-top: 2%;
}
}
.tooltipName, {
font-family: 'Roboto Slab',serif;
font-weight: 700;
}
.label {
color: $b;
display: inline;
padding-top: 1.5%;
}
.tooltipEthnicity, .tooltipAge {
display: block;
}
.arrow-down {
width: 0;
height: 0;
border-left: 15px solid transparent;
border-right: 15px solid transparent;
border-top: 20px solid $yellow;
position: relative;
left: 29px;
}
try this :
var position = $el.data('.elem'),
ImagePosition = $el.offset(),
ImageSize = {
'width': $el.outerWidth(),
'height': $el.outerHeight()
};
'top': ImagePosition.top - el.outerHeight()
'left': ImagePosition.left - (elelment.outerWidth()/2) + (elementSize.width/2)
I have a huge question about how to create div with JavaScript. In this case, I have tabs and I would like to be able to create a new one out of two variable obtained from the form in the left; one for the name and other the content. Example: http://s2.subirimagenes.com/imagen/previo/thump_8932774captura-de-pantalla.png
How should the function be to create this new tab out of the two variables?
This is the HTML of the tabs:
<div class="w3c">
<div id="tab16">
Tab 16
<div>One might well argue, that...</div>
</div>
<div id="tab17">
Tab 17
<div>... 30 lines of CSS is rather a lot, and...</div>
</div>
<div id="tab18">
Tab 18
<div id="Prueba">... that 2 should have been enough, but...</div>
</div>
</div>
and the CSS:
.w3c {
min-height: 250px;
position: relative;
width: 100%;
}
.w3c > div {
display: inline;
}
.w3c > div > a {
margin-left: -1px;
position: relative;
left: 1px;
text-decoration: none;
color: black;
background: white;
display: block;
float: left;
padding: 5px 10px;
border: 1px solid #ccc;
border-bottom: 1px solid white;
}
.w3c > div:not(:target) > a {
border-bottom: 0;
background: -moz-linear-gradient(top, white, #eee);
}
.w3c > div:target > a {
background: white;
}
.w3c > div > div {
background: white;
z-index: -2;
left: 0;
top: 30px;
bottom: 0;
right: 0;
padding: 20px;
border: 1px solid #ccc;
}
.w3c > div:not(:target) > div {
position: absolute
}
.w3c > div:target > div {
position: absolute;
z-index: -1;
}
First of all, create the new element:
Best way of creating a new element in jQuery
var $div = $("<div>", {id: "tabN"});
Then, add the content:
$div.html("some content");
Finally, append the newly created element where you need it.
$(".w3c").append($div);
The pure-JavaScript-version of BenSorter's jQuery answer:
var div = document.createElement('div');
div.id = "tabN";
div.innerHTML = "some content";
document.querySelector(".w3c").appendChild(div);
Documentation:
Document.prototype.createElement to create a new element
Document.prototype.querySelector to query the DOM for exactly one existing element
Document.prototype.querySelectorAll to query all DOM nodes that match a selector
Node.prototype.appendChild to add the created DOM node(s) to an existing one
Note: The jQuery-free solution above only works in reasonably "modern" browsers, meaning only Internet Explorer 8 and below will not support these methods. In the sad case that you need to support very old IEs, using jQuery will be a lot easier.