Develop Reference

How can this counter start from zero?

How can this script start counting from zero? At the moment it starts with the number it's supposed to count to before starting from zero
The JavaScript function loads the counter when it is called into view. How can the numerical values in the counter start with zeros when it is called into view
function isVisible(el) {
const element = $(el);
var WindowTop = $(window).scrollTop();
var WindowBottom = WindowTop + $(window).height();
var ElementTop = element.offset().top;
//var ElementBottom = ElementTop + element.height();
var ElementBottom = ElementTop + 20;
return ElementBottom <= WindowBottom && ElementTop >= WindowTop;
}
function Counter(el) {
obj = $(el);
if (obj.hasClass("ms-animated")) {
return;
}
obj.addClass("ms-animated");
// get the number
var number = obj.text();
obj.attr("data-number", number);
// clear the HTML element
obj.empty();
// create an array from the text, prepare to identify which characters in the string are numbers
var numChars = number.split("");
var numArray = [];
var setOfNumbers = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9];
// for each number, create the animation elements
for (var i = 0; i < numChars.length; i++) {
if ($.inArray(parseInt(numChars[i], 10), setOfNumbers) != -1) {
obj.append(
'<span class="digit-con"><span class="digit' +
numArray.length +
'">0<br>1<br>2<br>3<br>4<br>5<br>6<br>7<br>8<br>9<br></span></span>'
);
numArray[numArray.length] = parseInt(numChars[i], 10);
} else {
obj.append("<span>" + numChars[i] + "</span>");
}
}
// determine the height of each number for the animation
var increment = obj.find(".digit-con").outerHeight();
var speed = 2000;
// animate each number
for (var i = 0; i < numArray.length; i++) {
obj
.find(".digit" + i)
.animate({
top: -(increment * numArray[i])
},
Math.round(speed / (1 + i * 0.333))
);
}
}
$(window).scroll(function() {
const counterNumbers = $(".number").toArray();
counterNumbers.filter(isVisible).map(Counter);
});
$(window).trigger("scroll");
.number {
display: block;
font-size: 6rem;
line-height: 6.5rem;
}
.number *+* {
margin-top: 0;
}
.digit-con {
display: inline-block;
height: 6.5rem;
overflow: hidden;
vertical-align: top;
}
.digit-con span {
display: block;
font-size: 6rem;
line-height: 6.5rem;
position: relative;
text-align: center;
top: 0;
width: 0.55em;
}
.month {
height: 100vh;
}
<h1>Scroll</h1>
<div class="number">$2,350,354.43</div>
<div class="month">March</div>
<div class="number">$6,350,354.43</div>
<div class="month">March</div>
<div class="number">$8,500,435.33</div>
<div class="month">April</div>
<div class="number">$3,500,435.53</div>
<div class="month">May</div>
<script src='https://cdnjs.cloudflare.com/ajax/libs/jquery/3.6.0/jquery.min.js'></script>

Your issue is a something similar to FOUC - Flash of Unstyled Content - where what's originally in the HTML is displayed before it can be updated.
This can be fixed by changing the html and showing the value you want to display on load, while storing the required number in a data- attribute, eg:
<div class="number" data-number="$2,350,354.43">$0,000,000.00</div>
with a small change to your existing code to read the data- instead of text, from
var number = obj.text();
obj.attr("data-number", number); // this is never used
to
var number = obj.data("number");
If you can't change the html (or don't want to) then you can have an initialisation script run before your first scroll initialisation:
$(".number").each((i,e) => {
var obj = $(e);
var number = obj.text();
obj.data("number", number);
obj.text(number.replace(/\d/g, "0"));
});
You will still get FOUC on the very first counter if it's already visible because that's how javascript works: to keep things simple/basic: the page is rendered, then js runs. So there's a short time before the js runs where it's parsing/processing the js ready to run - how long this will be depends on how much js you have (including libraries) / whether it's cached / how much initialisation code there is.
Generally better to output your HTML as you want it displayed rather than rely on JS to update it, but that's not always possible.
Updated snippet:
function isVisible(el) {
const element = $(el);
var WindowTop = $(window).scrollTop();
var WindowBottom = WindowTop + $(window).height();
var ElementTop = element.offset().top;
//var ElementBottom = ElementTop + element.height();
var ElementBottom = ElementTop + 20;
return ElementBottom <= WindowBottom && ElementTop >= WindowTop;
}
function Counter(el) {
obj = $(el);
if (obj.hasClass("ms-animated")) {
return;
}
obj.addClass("ms-animated");
// get the number
//var number = obj.text();
//obj.attr("data-number", number);
var number = obj.data("number");
// clear the HTML element
obj.empty();
// create an array from the text, prepare to identify which characters in the string are numbers
var numChars = number.split("");
var numArray = [];
var setOfNumbers = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9];
// for each number, create the animation elements
for (var i = 0; i < numChars.length; i++) {
if ($.inArray(parseInt(numChars[i], 10), setOfNumbers) != -1) {
obj.append(
'<span class="digit-con"><span class="digit' +
numArray.length +
'">0<br>1<br>2<br>3<br>4<br>5<br>6<br>7<br>8<br>9<br></span></span>'
);
numArray[numArray.length] = parseInt(numChars[i], 10);
} else {
obj.append("<span>" + numChars[i] + "</span>");
}
}
// determine the height of each number for the animation
var increment = obj.find(".digit-con").outerHeight();
var speed = 2000;
// animate each number
for (var i = 0; i < numArray.length; i++) {
obj
.find(".digit" + i)
.animate({
top: -(increment * numArray[i])
},
Math.round(speed / (1 + i * 0.333))
);
}
}
$(window).scroll(function() {
const counterNumbers = $(".number").toArray();
counterNumbers.filter(isVisible).map(Counter);
});
$(".number").each((i,e) => {
var obj = $(e);
var number = obj.text();
obj.data("number", number);
obj.text(number.replace(/\d/g, "0"));
});
$(window).trigger("scroll");
.number {
display: block;
font-size: 6rem;
line-height: 6.5rem;
}
.number *+* {
margin-top: 0;
}
.digit-con {
display: inline-block;
height: 6.5rem;
overflow: hidden;
vertical-align: top;
}
.digit-con span {
display: block;
font-size: 6rem;
line-height: 6.5rem;
position: relative;
text-align: center;
top: 0;
width: 0.55em;
}
.month {
height: 100vh;
}
<h1>Scroll</h1>
<div class="number">$2,350,354.43</div>
<div class="month">March</div>
<div class="number">$6,350,354.43</div>
<div class="month">March</div>
<div class="number">$8,500,435.33</div>
<div class="month">April</div>
<div class="number">$3,500,435.53</div>
<div class="month">May</div>
<script src='https://cdnjs.cloudflare.com/ajax/libs/jquery/3.6.0/jquery.min.js'></script>

Fade in text letter by letter based on scroll

I'm having problems with a functionality that I have to implement, I'm looking to do this (check the second section) -> https://www.jacquemus.com/fr/simon
The letters need to fade in and fade out, based on the scroll, this is what I got so far
<div class="ml3">
<h1>THIS IS MY TEXT THAT IT'S GOING TO SHOW IN SCROLL</h1>
</div>
:root {
--percentage: 0;
}
body {
background-color: #000;
margin: 0;
height: 120vh;
}
.ml3 {
position: sticky;
top: 0;
height: 100vh;
display: flex;
justify-content: center;
align-items: center;
}
span {
font-family: Helvetica;
margin: 0;
padding: 0;
font-size: 48px;
color: #fff;
letter-spacing: -0.3px;
}
.ml3 span{
opacity: var(--percentage);
}
var textWrapper = document.querySelector('.ml3');
textWrapper.innerHTML = textWrapper.textContent.replace(/\S/g, "<span class='letter'>$&</span>");
var letter = document.querySelectorAll('.letter');
var i = 0;
var currentID = 0;
var slideCount = letter.length;
document.addEventListener('scroll', (e) => {
let scrolled = document.documentElement.scrollTop / (document.documentElement.scrollHeight - document.documentElement.clientHeight);
var nextID = currentID + 1;
if(nextID < slideCount){
letter[nextID].style.setProperty('--percentage', `${scrolled / 1}` * nextID);
}
currentID = nextID;
});
https://codepen.io/federicomartin/pen/eYdBbQm
As you can see, it's no near what I want, but I really don't know how to do it, if someone could help me, would be awesome! Thanks!

I like that effect a lot!! Thank for submitting that question! ;)
So here is a something to help you continue on this challenge.
In the scroll handler, I replaced:
var nextID = currentID + 1;
if(nextID < slideCount){
letter[nextID].style.setProperty('--percentage', `${scrolled / 1}` * nextID);
}
currentID = nextID;
with:
letter.forEach(function (l, i) {
if (i / letter.length < scrolled) {
l.style.setProperty("--percentage", 1);
}else{
l.style.setProperty("--percentage", 0);
}
});
It compares the scrolled percentage you calculated with the letter index "percentage" in the letter collection to set it's opacity to 0 or 1.
I would then adjust the scrollHeight of the body with the real text to reveal... Below, I used height: 600vh; and may be a bit too much. ;)
var textWrapper = document.querySelector(".ml3");
textWrapper.innerHTML = textWrapper.textContent.replace(
/\S/g,
"<span class='letter'>$&</span>"
);
var letter = document.querySelectorAll(".letter");
var i = 0;
var currentID = 0;
var slideCount = letter.length;
document.addEventListener("scroll", (e) => {
let scrolled =
document.documentElement.scrollTop /
(document.documentElement.scrollHeight -
document.documentElement.clientHeight);
// var nextID = currentID + 1;
// if (nextID < slideCount) {
// letter[nextID].style.setProperty(
// "--percentage",
// `${scrolled / 1}` * nextID
// );
// }
// currentID = nextID;
letter.forEach(function (l, i) {
// console.log("====",i / letter.length, i, letter.length)
if (i / letter.length < scrolled) {
l.style.setProperty("--percentage", 1);
} else {
l.style.setProperty("--percentage", 0);
}
});
});
:root {
--percentage: 0;
}
body {
background-color: #000;
margin: 0;
height: 1120vh;
}
.ml3 {
position: sticky;
top: 0;
height: 100vh;
display: flex;
justify-content: center;
align-items: center;
}
span {
font-family: Helvetica;
margin: 0;
padding: 0;
font-size: 48px;
color: #fff;
letter-spacing: -0.3px;
}
.ml3 span {
opacity: var(--percentage);
}
<div class="ml3">
<h1>THIS IS MY TEXT THAT IT'S GOING TO SHOW IN SCROLL</h1>
</div>
CodePen

How to sort elements on DOM by its inner Text

I have a graph that is rendering its values as a div inside the body element with a class according to their number values. This is working fine. But next I need to sort the divs according to their number values or background color. BUT, it needs to start on the lower left corner of the page and fan out upwards to towards the right as the numbers increase. Basically just like a line graph.
I'd like to stay away from libraries if at all possible.
How would I approach this? Thank you all.
let interval = setInterval(makeDivs, 5);
function makeDivs(){
let cont = checkHeight();
if(cont){
let div = document.createElement('div');
let randNum = Math.random() * 100;
if(randNum < 20) { div.classList.add('blue') }
if(randNum >= 20 && randNum < 40) { div.classList.add('green') }
if(randNum >= 40 && randNum < 60) { div.classList.add('yellow') }
if(randNum >= 60 && randNum < 80) { div.classList.add('orange') }
if(randNum >= 80 && randNum < 101) { div.classList.add('red') }
div.textContent = randNum.toFixed(2);
document.querySelector('body').appendChild(div);
} else {
alert('done');
clearInterval(interval);
sortDivs(); // Begin sorting divs
}
}
function checkHeight(){
let w = window.innerHeight;
let b = document.querySelector('body').offsetHeight;
if(b < w) {
return true;
} else {
return false;
}
}
function sortDivs(){
document.querySelector("body div:last-child").remove();
alert('sorting now...')
}
* { box-sizing: border-box;}
body { width: 100vw; margin: 0; padding: 0; display: flex; flex-wrap: wrap; align-items: end;}
body div { width: calc(10% + 1px); text-align: center; border: 1px solid #ddd; margin: -1px 0 0 -1px; padding: 10px;}
body div.blue { background: aqua; }
body div.green { background: green; }
body div.yellow { background: yellow; }
body div.orange { background: orange; }
body div.red { background: red; }
UPDATE!!!
So I have this so far based on the feed back down below. The problem now is the sorting is only happening laterally and not on an angle (spreading right and to the top).
let interval = setInterval(makeDivs, 10);
function makeDivs(){
let cont = checkHeight();
if(cont){
let div = document.createElement('div');
let randNum = Math.random() * 100;
if(randNum < 20) { div.classList.add('blue') }
if(randNum >= 20 && randNum < 40) { div.classList.add('green') }
if(randNum >= 40 && randNum < 60) { div.classList.add('yellow') }
if(randNum >= 60 && randNum < 80) { div.classList.add('orange') }
if(randNum >= 80 && randNum < 101) { div.classList.add('red') }
div.textContent = randNum.toFixed(2);
document.querySelector('.outPut').appendChild(div);
} else {
clearInterval(interval);
document.querySelector(".outPut div:last-child").remove();
compileArrays(); // Begin sorting divs
}
}
function checkHeight(){
let w = window.innerHeight;
let b = document.querySelector('.outPut').offsetHeight;
if(b < w) {
return true;
} else {
return false;
}
}
function compileArrays(){
let divs = document.querySelectorAll('.outPut div');
let bArr = [], gArr = [], yArr = [], oArr = [], rArr = [];
divs.forEach( (d) => {
if( d.classList.contains('blue') ){ bArr.push(d) }
if( d.classList.contains('green') ){ gArr.push(d) }
if( d.classList.contains('yellow') ){ yArr.push(d) }
if( d.classList.contains('orange') ){ oArr.push(d) }
if( d.classList.contains('red') ){ rArr.push(d) }
});
let finalArr = sortArray(bArr).concat(sortArray(gArr)).concat(sortArray(yArr)).concat(sortArray(oArr)).concat(sortArray(rArr));
newDom(finalArr);
}
function sortArray(arr){
let newArr = arr;
newArr.sort( (a, b) => {
return a.innerText - b.innerText;
});
return newArr;
}
function newDom(arr){
let b = document.querySelector('.outPut');
b.innerHTML = '';
arr.reverse();
arr.forEach((a) => {
b.appendChild(a);
});
}
* { box-sizing: border-box;}
body { width: 100vw; height: 100vh; margin: 0; padding: 0; display: flex; align-items: flex-end;}
body .outPut { flex: 1; display: flex; flex-wrap: wrap; flex-direction:row-reverse; }
body .outPut div { width: calc(10% + 1px); text-align: center; border: 1px solid #ddd; margin: -1px 0 0 -1px; padding: 10px;}
body .outPut div.blue { background: aqua; }
body .outPut div.green { background: #44df15; }
body .outPut div.yellow { background: yellow; }
body .outPut div.orange { background: orange; }
body .outPut div.red { background: red; }
<div class="outPut"></div>

Supposed you already have a mechanism to organise such DIVs in a grid as shown, the following should give you what you are looking for:
var items = divList.filter((div) => div.nodeType == 1); // get rid of the whitespace text nodes
items.sort(function(a, b) {
return a.innerHTML == b.innerHTML
? 0
: (a.innerHTML > b.innerHTML ? 1 : -1);
});
Then, place them back in the DOM as needed, example:
for (i = 0; i < items.length; ++i) {
divList.appendChild(items[i]);
}

This worked with the first code example!!!
try this sortDivs function:
function sortDivs() {
document.querySelector("body div:last-child").remove();
alert('sorting now...')
let toSort = document.getElementsByTagName("div")
toSort = Array.prototype.slice.call(toSort, 0)
toSort.sort((a, b) => {
let aord = parseFloat(a.textContent);
let bord = parseFloat(b.textContent);
return bord - aord;
})
document.body.innerHTML = ""
for(var i = 0, l = toSort.length; i < l; i++) {
document.querySelector('body').appendChild(toSort[i]);
}
}
and in the css file set flex-wrap to wrap-reverse. Hope I could help :)
PS: please, implement some else if instead of doing only if

Here is a small fiddle with my sample code demonstrating a simple solution in pure JavaScript and absolute CSS positioning for what you are trying to achieve. Link
As some pointed out already, there might be a library, that already provides a better and complete solution for this - I did not research if it is so.
Code:
file.js
var container = document.getElementById("container")
var results = [1,2,3,4,5,6,7,8]
//you can pre-calculate the order of the distances
//here already orderdered array [distanec][X-axis][Y-axis]
var distances =[[0,0,0],
[1,1,0],
[1,0,1],
[1.414, 1,1],
[2,0,2],
[2,2,0],
[2.234, 2,1],
[2.234, 1,2]]
for (i = 0; i < results.length; i++){
var newDiv = document.createElement("div")
newDiv.className = "result"
newDiv.innerHTML = results[i]
newDiv.style.left = distances[i][1]*20 + "px"
newDiv.style.bottom = distances[i][2]*20 + "px"
container.appendChild(newDiv)
}
function setColor(element){
// set class based on value - you already have this part
}
style.css
#container {
border: 4px;
border-color: red;
border-style: solid;
height: 200px;
width: 200px;
position: relative;
}
.result{
border: 2px;
width: 20px;
height: 20px;
position: absolute;
border-color: blue;
border-style: solid;
text-align: center;
}
site.html
<div id="container">
</div>
Output:

Add scores grid game JavaScript

I want to add 10 points when blue box goes into brown box.
I tried to set score = 0 and points to add = 10 but it doesn't work.
I alert '+10 points' and it shows me the alert so I guess the problem is the DOM ?!?
Any suggestions ?
Thanks !
let moveCounter = 0;
let score = 0;
let obs = 10;
document.getElementById('score').textContent = '0';
var grid = document.getElementById("grid-box");
for (var i = 1; i <= 49; i++) {
var square = document.createElement("div");
square.className = 'square';
square.id = 'square' + i;
grid.appendChild(square);
}
var obstacles = [];
while (obstacles.length < 10) {
var randomIndex = parseInt(49 * Math.random());
if (obstacles.indexOf(randomIndex) === -1) {
obstacles.push(randomIndex);
var drawObstacle = document.getElementById('square' + randomIndex);
$(drawObstacle).addClass("ob")
}
}
var playerOne = [];
while (playerOne.length < 1) {
var randomIndex = parseInt(49 * Math.random());
if (playerOne.indexOf(randomIndex) === -1) {
playerOne.push(randomIndex);
var drawPone = document.getElementById('square' + randomIndex);
$(drawPone).addClass("p-0")
}
}
var addPoints = $('#score');
$('#button_right').on('click', function() {
if ($(".p-0").hasClass("ob")) {
alert('add +10 points !!!')
addPoints.text( parseInt(addPoints.text()) + obs );
}
moveCounter += 1;
if ($(".p-0").hasClass("ob")) {
}
$pOne = $('.p-0')
$pOneNext = $pOne.next();
$pOne.removeClass('p-0');
$pOneNext.addClass('p-0');
});
#grid-box {
width: 400px;
height: 400px;
margin: 0 auto;
font-size: 0;
position: relative;
}
#grid-box>div.square {
font-size: 1rem;
vertical-align: top;
display: inline-block;
width: 10%;
height: 10%;
box-sizing: border-box;
border: 1px solid #000;
}
.ob {
background-color: brown;
}
.p-0 {
background-color: blue;
}
<script src="https://code.jquery.com/jquery-1.12.4.js"></script>
<div id="grid-box">
</div>
<div class="move">
<button id="button_right">right</button><br>
</div>
<div id="score">
</div>
Thank you very much! I am new to JavaScript/ JQuery
Thank you very much!

You are trying to change the HTML inside of the div with id "score".
Selecting the css element using $("#id") retrieves the DOM element and not its contents so adding the score directly to it has no consequences.
What you want to do is: update the score variable and then set the HTML inside the div to the score value.
So instead of just:
addPoints += obs
you should
score += obs
addPoints.html(score)

Box moving out of grid JavaScript

I have a yellow box in a grid. When click button 'UP' the yellow box is going one box UP. How can I stop the yellow box when it arrives at the edge? I do not want it to go out of the grid.
let moveCounter = 0;
var grid = document.getElementById("grid-box");
for (var i = 1; i <= 100; i++) {
var square = document.createElement("div");
square.className = 'square';
square.id = 'square' + i;
grid.appendChild(square);
}
var playerTwo = [];
while (playerTwo.length < 1) {
var randomIndex = parseInt(99 * Math.random());
if (playerTwo.indexOf(randomIndex) === -1) {
playerTwo.push(randomIndex);
var drawPtwo = document.getElementById('square' + randomIndex);
$(drawPtwo).addClass("p-1")
}
};
$('#button_up').on('click', function() {
moveCounter += 1;
$pOne = $('.p-1')
var id = $pOne.attr('id')
var idNumber = +id.slice(6);
var idMove = idNumber - 10
var idUpMove = 'square' + idMove;
$pOne.removeClass('p-1');
$('#' + idUpMove).addClass('p-1');
});
#grid-box {
width: 400px;
height: 400px;
margin: 0 auto;
font-size: 0;
position: relative;
}
#grid-box>div.square {
font-size: 1rem;
vertical-align: top;
display: inline-block;
width: 10%;
height: 10%;
box-sizing: border-box;
border: 1px solid #000;
}
.p-1{
background-color: yellow;
}
<div id="grid-box"></div>
<div class="move">
<button id="button_up">UP</button>
<br>
</div>
<script src="https://code.jquery.com/jquery-1.12.4.js"></script>
I am new to Javascript / jQuery. Any help will be much appreciated ! Thank you

let moveCounter = 0;
var grid = document.getElementById("grid-box");
for (var i = 1; i <= 100; i++) {
var square = document.createElement("div");
square.className = 'square';
square.id = 'square' + i;
grid.appendChild(square);
}
var playerTwo = [];
while (playerTwo.length < 1) {
var randomIndex = parseInt(99 * Math.random());
if (playerTwo.indexOf(randomIndex) === -1) {
playerTwo.push(randomIndex);
var drawPtwo = document.getElementById('square' + randomIndex);
$(drawPtwo).addClass("p-1")
}
};
$('#button_up').on('click', function() {
moveCounter += 1;
$pOne = $('.p-1')
var id = $pOne.attr('id')
var idNumber = +id.slice(6);
var idMove = idNumber - 10;
if(idMove < 0){idMove +=10;}
var idUpMove = 'square' + idMove;
$pOne.removeClass('p-1');
$('#' + idUpMove).addClass('p-1');
});
#grid-box {
width: 400px;
height: 400px;
margin: 0 auto;
font-size: 0;
position: relative;
}
#grid-box>div.square {
font-size: 1rem;
vertical-align: top;
display: inline-block;
width: 10%;
height: 10%;
box-sizing: border-box;
border: 1px solid #000;
}
.p-1{
background-color: yellow;
}
<div id="grid-box"></div>
<div class="move">
<button id="button_up">UP</button>
<br>
</div>
<script src="https://code.jquery.com/jquery-1.12.4.js"></script>
Here I have added the condition which restrict box to out of the grid
if(idMove < 0){idMove +=10;}
if movable position is in the minus then it again initialise it existing position.

You can add a check to stop it from moving out of the squares
var idMove = idNumber - 10
if(idMove > 0){
// do all the moving stuffs
}

$('#button_up').on('click', function() {
moveCounter += 1;
$pOne = $('.p-1')
var id = $pOne.attr('id')
var idNumber = +id.slice(6);
var idMove = idNumber - 10;
if(idMove > 0) {
var idUpMove = 'square' + idMove;
$pOne.removeClass('p-1');
$('#' + idUpMove).addClass('p-1');
}
});

You can use an if statement to check idMove > 0) If it is, then you can move your square, if it isn't then you shouldn't move your square. it will be undefined, and so you can run your code only when pOne's id is not undefined.
See example below:
let moveCounter = 0;
var grid = document.getElementById("grid-box");
for (var i = 1; i <= 100; i++) {
var square = document.createElement("div");
square.className = 'square';
square.id = 'square' + i;
grid.appendChild(square);
}
var playerTwo = [];
while (playerTwo.length < 1) {
var randomIndex = parseInt(99 * Math.random());
if (playerTwo.indexOf(randomIndex) === -1) {
playerTwo.push(randomIndex);
var drawPtwo = document.getElementById('square' + randomIndex);
$(drawPtwo).addClass("p-1")
}
};
$('#button_up').on('click', function() {
moveCounter += 1;
$pOne = $('.p-1')
var id = $pOne.attr('id')
var idNumber = +id.slice(6);
var idMove = idNumber - 10
if (idMove > 0) {
var idUpMove = 'square' + idMove;
$pOne.removeClass('p-1');
$('#' + idUpMove).addClass('p-1');
}
});
#grid-box {
width: 400px;
height: 400px;
margin: 0 auto;
font-size: 0;
position: relative;
}
#grid-box>div.square {
font-size: 1rem;
vertical-align: top;
display: inline-block;
width: 10%;
height: 10%;
box-sizing: border-box;
border: 1px solid #000;
}
.p-1 {
background-color: yellow;
}
<div id="grid-box">
</div>
<div class="move">
<button id="button_up">UP</button><br>
</div>
<script src="https://code.jquery.com/jquery-1.12.4.js"></script>