We Keep Coding

Image slides that fades when navbar is hit

I'm trying to make a replica of the slider on top of this google page: https://www.google.com/doodles
If someone could make a replica of the image slider with the bars, that would be great! I've tried to on my own but can't figure it out. Here's my try if it's helpful!
JAVASCRIPT:
<script>
var imgArray = [
'images/img1.gif',
'images/img2.gif',
'images/img3.jpg',
'images/img4.jpg'],
curIndex = 0;
imgDuration = 3000;
function slideShow() {
document.getElementById('slider').className += "fadeOut";
setTimeout(function () {
document.getElementById('slider').src = imgArray[curIndex];
document.getElementById('slider').className = "";
}, 500);
curIndex++;
if (curIndex == imgArray.length) { curIndex = 0; }
}
</script>
HTML:
<img class="slidershow" id="slider" src="images/img1.gif" onmouseover="slideShow()">
<div id="navigation">
<label for="r1" class="bar" id="bar1"></label>
<label for="r2" class="bar" id="bar2"></label>
<label for="r3" class="bar" id="bar3"></label>
<label for="r4" class="bar" id="bar4"></label>
</div>
</div>
CSS: --> Honestly, I wrote so much CSS that I don't know which ones relate, so I might have left a few out. Need to clean that up - Apologize in advance
.nav_links {
list-style: none;
}
.nav_links li {
display: inline-block;
padding: 0px 20px;
}
.nav_links li a {
color: #009cdc;
transition: all 0.3s ease 0s;
}
.nav_links li:hover a {
color: #2772ff;
}
#top-content {
display: block;
}
latest-nav li#latest-nav-1 {
background-color: #fa4842;
}
#latest-nav li.off {
border-top: 15px solid #fff;
}
#latest-nav li.off {
height: 5px;
opacity: 0.35;
}
#latest-nav li {
cursor: pointer;
float: left;
height: 5px;
transition: opacity 0.15s ease,height 0.15s ease,border-top 0.15s ease;
-moz-transition: opacity 0.15s ease,height 0.15s ease,border-top 0.15s ease;
-webkit-transition: opacity 0.15s ease,height 0.15s ease,border-top 0.15s ease;
width: 16.6%;
}
.slidershow {
height: 400px;
overflow: hidden;
}
.middle {
position: absolute;
top: 50%;
left: 25%;
transform: translate(-50%,-50%);
}
#navigation {
position: absolute;
bottom: 35px;
left: 60%;
transform: translateX(-50%);
display: flex;
}
.bar {
border-top: 15px solid #fff;
width: 200px;
opacity: 0.35;
height: 5px;
cursor: pointer;
transition: 0.4s;
}
.slides {
width: 500%;
height: 100%;
display: flex;
margin-top: 30px;
}
.slide {
width: 20%;
transition: 0.6s;
}
.slide img {
display: block;
margin: auto;
max-height: 250px;
max-width: 600px;
width: auto;
}
latest .container img {
display: block;
margin: auto;
max-height: 250px;
max-width: 600px;
}
#bar1 {
background-color: #3875fc;
}
#bar2 {
background-color: #ff8809;
}
#bar3 {
background-color: #19be29;
}
#bar4 {
background-color: #fa4842;
}
Thanks so much!

I'm always happy to see newcomers devoting time to study. First of all, good job! Unfortunately I'm not a very good teacher, but I put together a little example of this slider you're working on. You can check it clicking here.
Basically what is going on is:
The HTML is divided into two sections: the slider & the navbar.
I hide all slides by default applying a display: none to them. They're only visible when I add an additional class.
Detect the hover method via javascript. Whenever the navbar item is hovered on, you will detect its position (I added a data attribute called data-position to find out which position it is) and show the correspondent slider.
So, if the navbar has the data-position of 2, I know that I must show the second slide. To do that, I use .slider .slider-item:nth-child(2).
As I mentioned I'm not the best at explaining, but I hope this helps you out a little bit. Keep studying and don't give up!
HTML:
<div class="wrapper">
<div class="slider">
<div class="slider-item slider-item--visible">
hello item 1
</div>
<div class="slider-item">
hello item 2
</div>
<div class="slider-item">
hello item 3
</div>
</div>
<nav class="navbar">
<span class="navbar-item navbar-item--selected" data-position="1"></span>
<span class="navbar-item" data-position="2"></span>
<span class="navbar-item" data-position="3"></span>
</nav>
</div>
CSS
.wrapper{
max-width: 1000px;
width: 100%;
margin: 0 auto;
display: block;
}
/* Slider */
.slider{
max-width: 100%;
width: 100%;
}
.slider-item{
display: none;
}
.slider-item--visible{
display: block;
}
/* Navbar */
.navbar{
max-width: 100%;
display: flex;
align-items: flex-end;
height: 8px;
}
.navbar-item{
max-width: 33.3%;
width: 100%;
display: block;
height: 5px;
cursor: pointer;
opacity: .5;
transition: all .32s ease;
}
.navbar-item--selected{
height: 8px;
opacity: 1;
}
/* Meaningless styles (colors) */
.navbar-item:nth-child(1){
background: salmon;
}
.navbar-item:nth-child(2){
background: lightblue;
}
.navbar-item:nth-child(3){
background: #19be29;
}
Javascript
const $navbars = document.querySelectorAll(`.navbar-item`);
function removeSelected(){
const $selected = document.querySelectorAll(`.navbar-item--selected, .slider-item--visible`);
if (!$selected){
return;
}
for (let each of $selected){
each.classList.remove("navbar-item--selected");
each.classList.remove("slider-item--visible");
}
}
for (let each of $navbars){
each.addEventListener("mouseover", function(){
removeSelected();
const position = each.getAttribute("data-position");
const $item = document.querySelector(`.slider .slider-item:nth-child(${position})`)
each.classList.add("navbar-item--selected")
$item.classList.add("slider-item--visible");
});
}

How to fix inline coding in html for site map button

I am currently working on a website and the user wants the site map to be a bar at the bottom of the screen with a button kinda built in so that when you click it a site map will slide down or up and then allow the user to click it again and make it go away.
I have the coding for it to go up but once you click it i cant get the button to follow so you can click it again. It just goes behind the site map and is gone. I have to use the coding inline due to the people who designed this site before made the css over 10000 lines long and when you try changing it there is always conflicts and the hosting company is no help on the fix. so i found that putting it in the html coding is the only way to overwrite the crazy css they created.
function footer() {
var footerH = $('footer');
var fH = footerH.height();
$('.fTab').on('click', function() {
$(this).toggleClass('current');
$('footer').slideToggle(500);
});
}
footer();
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<span class="fTab" style="width: 100%; height: 3em; position: absolute; bottom: 0; display: block; background: #ffffff; color: #000000; line-height: 4em; text-align: center; font-size: 1.2em; border-radius: 10px 10px 0 0; cursor: pointer; -webkit-transition: 0.5s ease-in-out; -moz-transition: 0.5s ease-in-out; -ms-transition: 0.5s ease-in-out; -o-transition: 0.5s ease-in-out;">Site Map</span>
<footer style="position: absolute; display: none; left: 0; width: 100%; height: 30%; background: #ffffff;">
test
</footer>
https://jsfiddle.net/ns16twzq/

$(document).on('click', '#smBtn', function(){
$('#siteMap').css('height', '100%');
$(this).addClass('active');
});
$(document).on('click', '.active', function(){
$('#siteMap').css('height', '100px');
$(this).removeClass('active');
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div id="siteMap" style="position: absolute; width: 100%; height: 100px; left: 0; bottom: 0; background: #333; transition: all ease 0.3s;">
<button id="smBtn" style="margin: 10px auto; display: table; background: #fff; padding: 10px; border-radius: 4px; border: none; transition: all ease 0.3s;">Site Map</button>
</div>

$('#smBtn').on('click', function() {
$('.siteMap').toggleClass('active');
});
.siteMap {
position: absolute;
width: 100%;
height: 100px;
left: 0;
bottom: 0;
background: #333;
transition: all ease 0.3s;
}
.siteMap.active {
height: 100%;
}
#smBtn {
margin: 10px auto;
display: table;
background: #fff;
padding: 10px;
border-radius: 4px;
border: none;
transition: all ease 0.3s;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div class="siteMap">
<button id="smBtn">Site Map</button>
</div>

How opacify background of header with scrolling

I'm looking to opacify the background color of my navbar during the scroll.
My Navbar is in the Header Div.
Actually, When I scroll my navbar is mixed with the content and I can't read anything.
I tried a lot of tutorials but my knowledge is poor in javascript and nothing works.
I just want the background header is opacity 0 when we are on the top of the page and become 0.7 when we scroll.
Thanks for your help.
/*sticky_navbar*/
window.onscroll = function() {
myFunction()
};
var navbar = document.getElementById("header");
var sticky = navbar.offsetTop;
function myFunction() {
if (window.pageYOffset >= sticky) {
navbar.classList.add("sticky")
} else {
navbar.classList.remove("sticky");
}
}
$(window).scroll(function() {
var threshold = 200; // number of pixels before bottom of page that you want to start fading
var op = (($(document).height() - $(window).height()) - $(window).scrollTop()) / threshold;
if (op <= 0) {
$("#header").hide();
} else {
$("#header").show();
}
$("#header").css("opacity", op);
});
#header {
display: flex;
justify-content: flex-end;
background: rgba(139, 139, 157, 0.7);
z-index: 2;
}
.navbar {}
#Title {
margin: 0 auto 0 0;
height: 20px;
margin-top: 15px;
padding-left: 10px;
border-bottom: 1px solid white;
padding-top: 5px;
padding-bottom: 30px;
flex: 1;
}
#navbar {
overflow: hidden;
display: flex;
justify-content: flex-end;
border-bottom: 5px solid white;
padding-bottom: 10px;
padding-top: 15px;
}
.menu:nth-child(1) {
order: 1;
}
.menu:nth-child(2) {
order: 4;
}
.menu:nth-child(3) {
order: 3;
}
.menu:nth-child(4) {
order: 2;
}
.menu:nth-child(5) {
order: 5;
}
IMG.background {
display: block;
margin-left: auto;
margin-right: auto;
z-index: 1;
width: 60%;
}
#navbar a {
display: block;
color: #FFF;
text-align: center;
padding: 10px 16px;
text-decoration: none;
font-size: 17px;
}
#navbar a:hover {
background-color: #ddd;
color: black;
}
#navbar a.active {
background: rgba(217, 78, 68, 0.5);
color: white;
}
.content {
padding: 16px;
color: #ddd;
background-color: #FFF
}
.sticky {
position: fixed;
top: 0;
width: 100%;
}
.sticky+.content {
padding-top: 60px;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div id="header" class="navbar">
<div id="Title">
<img src="IMAGES/PNG/logo.png" alt="logo" />
</div>
<div id="navbar">
<div class="menu"> <a class="active" href="javascript:void(0)">Blog</a></div>
<div class="menu"> Contact</div>
<div class="menu"> L'électrophotonique</div>
<div class="menu"> Qui sommes nous?</div>
</div>
</div>

Along with what Mattia said, I have created a pen. I hope this helps.
I also added a css transition so it fades, but that was just a matter of personal preference. You can definitely remove that if you like.
CODEPEN
The changes are as follows:
css
#header {
display: flex;
justify-content: flex-end;
background: rgba(139, 139, 157, 0);
-webkit-transition: background 0.5s ease-in-out;
-moz-transition: background 0.5s ease-in-out;
-ms-transition: background 0.5s ease-in-out;
-o-transition: background 0.5s ease-in-out;
transition: background 0.5s ease-in-out;
z-index: 2;
position: fixed;
top: 0;
left: 0;
right: 0;
}
#header.isSticky {
background: rgb(139, 139, 157, 0.7);
-webkit-transition: background 0.5s ease-in-out;
-moz-transition: background 0.5s ease-in-out;
-ms-transition: background 0.5s ease-in-out;
-o-transition: background 0.5s ease-in-out;
transition: background 0.5s ease-in-out;
}
js
$(document).ready(function(){// checks vertical position of scroll bar
var scrollY = $(this).scrollTop();
// when user refreshes psge
if (scrollY > 0) {
// if it is anywhere but the top change opacity by adding class .isSticky
$('#header').addClass('isSticky');
} else {
$('#header').removeClass('isSticky');
}
$(window).on('scroll', function(){
// while uesr scrolls check the scrollTop position
var scrollY = $(this).scrollTop();
if (scrollY > 0) {
$('#header').addClass('isSticky');
} else {
$('#header').removeClass('isSticky');
}
});
});

Just toggle a class (.isSticky for example) with js on scroll by checking the element offset top.
#header {
display: flex;
justify-content: flex-end;
background: rgba(139, 139, 157, 0);
z-index: 2;
}
#header.isSticky {
background: rgba(139, 139, 157, 0.7);
}

Responsive Hover Box over Responsive Image

I've been using a tutorial for making a hover box go over a set of images.
The article can be found here.
Got it working perfectly, except I want my images and the hover to be responsive to window size (just via width is fine), I've tried looking up how to do this. Seems like it might be a case of using % rather than a fixed value, but not experienced enough to know how to execute the markup. Even if I get the images to re-size the hover box doesn't re-size with them.
Is it possible to add something to the existing CSS to make this happen.
ul.img-list {
list-style-type: none;
margin: 0;
padding: 0;
text-align: center;
}
ul.img-list li {
display: inline-block;
height: 150px;
margin: 0 1em 1em 0;
position: relative;
width: 150px;
}
span.text-content {
background: rgba(0,0,0,0.5);
color: white;
cursor: pointer;
display: table;
height: 150px;
left: 0;
position: absolute;
top: 0;
width: 150px;
opacity: 0;
-webkit-transition: opacity 500ms;
-moz-transition: opacity 500ms;
-o-transition: opacity 500ms;
transition: opacity 500ms;
}
span.text-content span {
display: table-cell;
text-align: center;
vertical-align: middle;
}
ul.img-list li:hover span.text-content {
opacity: 1;
}
<ul class="img-list">
<li>
<a href="#">
<img src="http://placehold.it/150x150">
<span class="text-content"><span>Text</span></span>
</a>
</li>
</ul>

you can use only width to keep image ratio.
you can use display:block for a and img, and use flex to center text.
not too sure about the responsive behavior you look for for, you can use a % width on li or a mix a % width + min-width and max-width.
example with % width set at 50% (and max/min width ) , it can be any other value and units.
ul.img-list {
list-style-type: none;
margin: 0;
padding: 0;
text-align: center;
}
ul.img-list li {
display: inline-block;
vertical-align:top;
margin: 0;
position: relative;
width:50%;
max-width:100vh;
min-width:60vh;
}
ul.img-list li a, ul.img-list li a img {
display:block;
width:100%;
}
span.text-content {
background: rgba(0,0,0,0.5);
color: white;
cursor: pointer;
display:flex;
left: 0;
right:0;
position: absolute;
top: 0;
bottom:0;
opacity: 0;
-webkit-transition: opacity 500ms;
-moz-transition: opacity 500ms;
-o-transition: opacity 500ms;
transition: opacity 500ms;
}
span.text-content span {
margin:auto;
}
ul.img-list li:hover span.text-content {
opacity: 1;
}
* {
margin:0;
padding:0;
}
<ul class="img-list">
<li>
<a href="#">
<img src="http://placehold.it/150x150">
<span class="text-content"><span>Text</span></span>
</a>
</li>
</ul>

You could also do it like this, using pseudo elements to display the overlay content on the image. This method is fully responsive.
.wrapper {
width: 100%;
overflow: auto;
padding: 1%;
box-sizing: border-box;
background: rgba(0, 0, 0, 0.1);
border-radius: 8px;
}
/* Columns floated left */
.col-4 {
width: 33.3%;
float: left;
padding: 1%;
box-sizing: border-box;
height: auto;
overflow: hidden;
}
/* Container to make absolute positioning easier on psuedo element */
.image_container {
position: relative;
overflow: auto;
padding: 0;
margin: 0;
}
.image_container img {
width: 100%;
display: block;
}
/* Structure for ::before element */
#img_1::before,
#img_2::before,
#img_3::before {
background: rgba(0, 0, 0, 0.5);
position: absolute;
left: 0;
right: 0;
height: 100%;
width: 100%;
box-sizing: border-box;
display: block;
opacity: 0;
color: white;
padding: 10px;
transition: 0.5s ease;
}
/* Hover state for container to show ::before on mouseover */
.image_container:hover#img_1::before,
.image_container:hover#img_2::before,
.image_container:hover#img_3::before {
opacity: 1;
cursor: pointer;
}
/* Text for ::before elements */
#img_1::before {
content: 'Image Title 1';
}
#img_2::before {
content: 'Image Title 2';
}
#img_3::before {
content: 'Image Title 3';
}
<div class="wrapper">
<div class="col-4">
<div class="image_container" id="img_1">
<img src="https://images.unsplash.com/reserve/B6PfiQ8QoSzmsZYOCkSB__DSC0530-1.jpg?dpr=1&auto=format&fit=crop&w=1500&h=1004&q=80&cs=tinysrgb&crop=">
</div>
</div>
<div class="col-4">
<div class="image_container" id="img_2">
<img src="https://images.unsplash.com/photo-1418985991508-e47386d96a71?dpr=1&auto=format&fit=crop&w=1500&h=1000&q=80&cs=tinysrgb&crop=">
</div>
</div>
<div class="col-4">
<div class="image_container" id="img_3">
<img src="https://images.unsplash.com/photo-1476362555312-ab9e108a0b7e?dpr=1&auto=format&fit=crop&w=1500&h=1000&q=80&cs=tinysrgb&crop=">
</div>
</div>
</div>
You could also set the images as a background-image for the div which would give you more control over the text in the overlay, if you needed it.

Removing content from createRange in javascript

Long time lurker and first time poster here.
I have a javascript code that selects and copies rich text to the clipboard from a specific div.
It works well but there is an extra line break that I want to eliminate.
The relevant part of my code:
var textToSelect = document.getElementById('answerText');
range = document.createRange();
range.selectNode(textToSelect[0]);
window.getSelection().addRange(range);
document.execCommand("copy");
alert(range);
In div answerText the text I have is:
answer text
There aren't any spaces or line breaks before/after the text. The code results in the following message.
This extra line break is then also copied to the clipboard.
How can I remove the extra line break from the selection? I also prefer to check that the content I'm removing from my range is indeed a line break to make it safe to use.

Try to switch over to selectNodeContents() instead of selectNode() - so range.selectNodeContents(textToSelect[0]);.
I ran into the same problem trying to whip up some script to copy hex colors when the color block was clicked.
Here is the snippet to play with (remove contents and you'll see the extra line - at least in chrome):
$(function() {
//copys inner html of target div.
//event button
var copyBtn = $('.copy-btn');
copyBtn.on('click', function(event) {
var $this = $(this);
//find the element that has the text you want.
var content = $this.prev('.meta--value');
//creates new range object and sets text as boundaries.
var range = document.createRange();
range.selectNodeContents(content[0]);
window.getSelection().addRange(range);
try {
// Now that we've selected the text, execute the copy command
var successful = document.execCommand('copy');
/*var msg = successful ? 'successful' : 'unsuccessful';
console.log('Copy email command was ' + msg);*/
//handle success
$(this).after('<span class="success"></span>');
setTimeout(function() {
$('.success').addClass('show');
setTimeout(function() {
$('.success').fadeOut(function() {
$('.success').remove();
});
}, 1000);
}, 0);
} catch (err) {
//console.log('Oops, unable to copy');
}
//clear out range for next event.
window.getSelection().removeAllRanges();
});
});
#import url(https://fonts.googleapis.com/css?family=Roboto:300,900|Merriweather);
* {
box-sizing: border-box;
}
html,
body {
margin: 0;
padding: 0;
background-color: #efefef;
color: #131313;
}
p {
font-weight: 600;
font-size: 20px;
margin-top: 1.5vw;
}
.swatch-wrapper {
width: 90vw;
margin: 0 auto;
}
#media (max-width: 320px) {
.swatch-wrapper {
width: 100%;
margin: 0;
}
}
.swatch-wrapper .swatch {
display: inline-block;
vertical-align: top;
margin: 0 3px 10px 0;
width: 22.5vw;
max-width: 200px;
background-color: #e2e2e2;
box-shadow: 0 1px 0 0 rgba(19, 19, 19, 0.1);
-webkit-transition: box-shadow 150ms, -webkit-transform 150ms;
transition: box-shadow 150ms, -webkit-transform 150ms;
transition: transform 150ms, box-shadow 150ms;
transition: transform 150ms, box-shadow 150ms, -webkit-transform 150ms;
}
#media (max-width: 320px) {
.swatch-wrapper .swatch {
display: block;
width: 90%;
margin: 0 auto 1.5vh;
max-width: none;
}
}
.swatch-wrapper .swatch:hover {
-webkit-transform: scale(1.02);
transform: scale(1.02);
box-shadow: 0px 3px 10px -5px rgba(19, 19, 19, 0.3);
}
.swatch-wrapper .swatch--color {
margin: 0;
padding: 0;
width: 100%;
height: 5vw;
max-height: 133px;
}
.swatch-wrapper .swatch--meta {
padding: 0.375vw;
font-family: monospace;
}
#media (max-width: 320px) {
.swatch-wrapper .swatch--meta {
padding: .75vh .75vh 1vh;
}
}
.swatch-wrapper .meta + .meta {
margin-top: 0.375vw;
}
.swatch-wrapper .meta:before {
color: #939393;
}
.swatch-wrapper .meta--name:before {
content: "name: ";
}
.swatch-wrapper .meta--aliases:before {
content: 'aliases: ';
}
.swatch-wrapper .meta--value:before {
content: 'value: ';
}
/**
functional classes / none display stuff
*/
.cf:before, .cf:after {
content: ' ';
display: table;
}
.cf:after {
clear: both;
}
.swatch {
position: relative;
-webkit-transition: all .1s ease;
transition: all .1s ease;
}
.swatch:hover {
background-color: #EFEFEF;
}
.swatch:hover:after {
bottom: 0;
}
.swatch:hover .copy-btn {
opacity: .5;
right: 0;
}
.copy-btn {
position: absolute;
opacity: 0;
cursor: pointer;
top: 0;
text-align: center;
-webkit-transition: all .2s ease;
transition: all .2s ease;
right: -100%;
bottom: 0;
padding: 15px;
background-color: #636363;
color: #fff;
text-transform: uppercase;
font-size: 10px;
font-weight: 600;
border: none;
outline: none;
width: 100%;
}
.copy-btn:before {
content: "";
width: 10px;
height: 100%;
display: inline-block;
vertical-align: middle;
background-repeat: no-repeat;
background-position-y: center;
}
.copy-btn:after {
content: "click to copy";
display: inline-block;
vertical-align: middle;
}
.success {
position: absolute;
right: 0;
cursor: pointer;
width: 100%;
top: 0;
font-size: 12px;
text-align: center;
font-style: normal;
font-weight: 600;
bottom: 0;
padding: 15px;
background-color: #000;
color: #fff;
text-transform: uppercase;
-webkit-transition: all .1s ease;
transition: all .1s ease;
font-weight: 600;
-webkit-transform: scale(0.1);
transform: scale(0.1);
border-radius: 100%;
}
.success:before {
content: "";
width: 10px;
height: 100%;
display: inline-block;
vertical-align: middle;
background-repeat: no-repeat;
background-position-y: center;
}
.success:after {
content: "Copied!";
display: inline-block;
vertical-align: middle;
}
.success.show {
-webkit-transform: scale(1);
transform: scale(1);
border-radius: 0;
}
.p-success:hover {
border: 2px solid #E93937;
}
.p-success:before {
content: "Copied";
background: #E93937;
width: 92px;
text-align: center;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<br>
<article class="swatch-wrapper cf">
<footnote>Hover and Click to Copy Hex</footnote>
<br>
<section class="swatch">
<figure class="swatch--color" style="background-color:#fff;"></figure>
<figcaption class="swatch--meta">
<div class="meta meta--name">Millennium</div>
<div class="meta meta--value">#ffffff</div>
<button class="copy-btn"></button>
</figcaption>
</section>
</article>
When you use selectNode(), the startContainer, endContainer, and commonAncestorContainer are all equal to the parent node of the node that was passed in; startOffset is equal to the index of the given node within the parent's childNodes collection, whereas endOffset is equal to the startOffset plus one (because only one node is selected).
When you use selectNodeContents(), startContainer, endContainer, and commonAncestorContainer are equal to the node that was passed in; startOffset is equal to 0; endOffset is equal to the number of child nodes (node.childNodes.length).
From: http://www.wrox.com/WileyCDA/Section/JavaScript-DOM-Ranges.id-292301.html