Most voted "html5" questions
HTML5 (Hypertext Markup Language, version 5) is a generic term for recent web technologies (HTML, CSS, and Javascript). It is also the latest iteration of the HTML Recommendation scheduled for 2014, and featuring new elements and Apis.
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answers98
viewsHow to color the CSS header?
I’m trying to color one <header></header> with CSS but when I try with the code below there is a header spacing with the top: Code: header{ height: 100%; width: 100%; margin-top: 0;…
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answer1064
viewsJavascript error [Object Htmldivelement]
I do not know what to do to have the correct result with this code. Because whenever I have checked it returns me this result. I tried to make use of the document.querySelector. But the error…
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answer55
viewsShow JS for loop output
I am learning Javascript and am having trouble showing on the screen the loop of numbers placed inside the inputs. function contar(){ var inicio =…
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answers61
viewsPositioning of a div
Good Night, I’m creating a website and I wanted to make a layout as if it were chess, a black div next to a white and down the other side, the only problem is that when decreasing to cell was to be…
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answer56
viewsDisplay BD text in a div considering the HTML tags contained in this text
Speak guys, I have a text written in BD Mysql where, this text already contains all the formatting tags. On my font-end page, I receive this text through a foreach and pass it in a div of the page,…
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answer163
viewsAngular 9 + error when passing variable in direct html function
Guys, I have a question about a mistake that I don’t understand why. I have a function that I run by a click, this function has to pass a single value and is passing(tested via console.log).…
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answers78
viewsDisplay different messages on a Javascript site
Good afternoon. I’m learning Javascript and started a project to calculate a person’s BMI. I researched how to sum two numbers using inputs in HTML and based on the code used for the sum, converted…
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answers147
viewsQuery and display JSON data according to url parameter
Hello everyone, I really need your help!!! I need to display data from a Json on a page (< p >, < H1 > etc...), according to the url parameter. My Json is like this: { "outputName":…
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answer46
viewsI can’t make the page search box work
<form class="pesquisa"> <input type="search" class="texto" list="historico" placeholder="Pesquisar gêneros ..." /> <img src="imagem/lupa.jpg" class="btn" onclick="executar()">…
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answer30
viewsDraw on canvas no matter the position of the canvas
I have this code that makes me able to draw lines on the canvas: https://jsfiddle.net/475yesLw/ const canvas = document.createElement("canvas"); canvas.setAttribute("id", "canvas");…
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answer44
viewsCannot POST /authenticate
I wonder if you could help me, give it to you yesterday with that mistake I no longer know what to do. index js. const express = require("express"); const app = express(); const port = 3000; const…
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answer35
viewsHow to make a pagination that only shows Previous - 6 records - Next per page?
<div id="paginadorMocado"> <nav aria-label="Page navigation example"> <ul class="pagination" id="paginacao"> <!-- <li…
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answer44
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answer495
viewsInclude Button Loading - Bootstrap v4 - JSP
Hi, I’m trying to change a button where when it’s clicked. Your content is changed to show a "loading" and after loading the page the button goes back to the previous state. I have tried several…
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answer55
viewsHow to Make the following function in pure javascript?
I would like to make the following calculation: take the amount of value to pay,take the value of the days of delay and that when clicking the confirm button do the following calculation:…
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answer90
viewsProgram that calculates BMI
I am creating a Javascript program that calculates BMI, there are fixed patients who already come with their data filled and I am putting the option to add more patients. The problem is when a new…
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answers53
viewsHow can I present the result of the hits on another page?
function checar() { var questao1 = document.quiz.questao1.value; var questao2 = document.quiz.questao2.value; var questao3 = document.quiz.questao3.value; var questao4 =…
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answer29
viewsgrid fill div
I have a page where there is a part with questions, I needed to put the textfield filling the frame and the button in the bottom right corner of the page, but for that I would need to fill the grid…
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answer337
viewsIs it possible with CSS to make each letter of a word have a different color?
.two-colors{ font-size: 160px; background: linear-gradient(to right, blue 50%, green 0); -webkit-background-clip: text; -webkit-text-fill-color:…
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answer44
viewsHow do you get this carousel to go vertically?
Guys I’m trying to create a Carousel that displays the items vertically. For example when clicking on the Buttons a text pass from top to bottom, I tried to do with the carousel of the bootstrap 4…
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answer73
viewsDisplay a`Section` after 2 minutes of clicking the video play button on Youtube
In a video uploaded on Vimeo I learned how to do, now on Youtube I’m not getting through. My situation is, I have a div where inside I have a iframe with the embedded video. What I need is to take…
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answer122
viewsMask.js:5 Uncaught Typeerror: v_fun is not a Function
I am using a JS script to customize masks on inputs within forms. A file mask.js is being loaded into the pages, containing the following functions: function mascara(o,f){ v_obj=o v_fun=f…
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answer26
viewsHow to display a hidden icon after loading a file through input file
I have a screen where there are several input type="file" and I’m trying to make an icon appear when the user loads a file, making it easier to see that that input is already with a file. Below…
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answer28
viewsproblem with HTML
I’m having trouble rendering this HTML, I’m using Jango and this is the template that you get from Viewer, when trying to use this new format of cards I’m having problems, I want it to be a fixed…
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answer76
viewsOne BUTTON to save data from all Foms!
I have an extensive form with some tabs and in each tab there is a form with "post" method. I would like to create a "finish" BUTTON in the last tab that saved all the data entered in all form form,…
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answer28
viewsPage redirects and the contact form is not sent via email
The page is redirected, but the form is not sent. I believe "email.php" is not running. I’ve tried several different features, the problem that this style framework and Java used in the project is a…
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answers48
viewsHelp to sum days on a user-selected date
I need a help, I have a form of reservation of rooms, have as I increase the number of days of a date that the user selected, received by the value of the html form? Like something like that.…
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answers82
viewsHow do I use Javascript to check if my input has any written text?
I tried it this way: function aviso() { document.querySelector(".registers_button") let email_box = document.querySelector(".email") if (email_box.innerHTML == '') { alert("Por favor, preencha os…
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answer28
viewsModifications made to my style tab are not updating on the page
I’m making a calculator that I saw on youtube and I’m having a problem that what I did in my style isn’t changing what I should change. I’ve tried some videos that teach you how to handle…
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answers49
viewsHow to repeat div with json with dynamic content?
Right now I want to make a div have a JSON content. In this case, the first div has the "0" content of JSON, and that repeats itself in loop, until it reaches the maximum amount of items within…
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answer34
views"Justify-content: space-between;" is not working - Flexbox
Hello. All right? I’m creating a box with three items. One needs to be glued to the top, the other in the middle and the other glued to the bottom, to the base of the layout I need to do. So I used…
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answers63
viewsIs there a possibility of knowing when a field bursts width?
I am with a doubt, I have a site style IFOOD, it contains a part of complements for the products, in the products there are the description, so I passed the description to the pop-up of the…
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answer20
viewstxt file content display in php
Hello, I’m trying to read a txt file created with data entered by users of a site (name, email, company and phone) and I want to display the information inside the txt file using php. My code so far…
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answer27
viewsHow to overlay the animation of loading into a div?
all right with you? I am creating a form where by clicking on any of the buttons I would like an animation to load. But when clicking it overlap the div in which the form is inserted. I wonder how I…
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answer31
viewsHow do I change the position of two names in the table using up and down buttons?
<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>Exemplo de…
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answer56
viewsI am having difficulty transmitting message to the user
I am trying to make a list of names for giveaway using js, html, css and boostrap not yet adjusted the stylings wanted to make logica work first. I created some functions but I think it is in…
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answer101
viewsHow to get microphone frequency in Hertz in Java Script?
I am working on a component of an application, where I have to pick up the frequency of a sound sent by an audio input (microphone). Although I’ve never done any of this, I did a little research,…
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answer31
viewsPause display of a function
I made a program to be kind of a stopwatch after pressing the play button, but I can’t think of a logic of when I press the pause button the counter pause the display of the numbers where it is…
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answer27
viewsI cannot perform my dropdown menu
In this situation I cannot position the elements <li> below computer responsibly. I am in the mood to create a dropdown menu but have no idea how to position the <li's> below my computer…
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answer38
viewsHow to Validate the form without Refreshing the page and lose the fields already filled?
I am developing a form and I am using javascript to validate whether the form fields were filled or not, only then after filling the user can proceed, however, when it is clicked on the "Submit"…
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answer46
viewsRemove row from a dynamic table with Javascript
I’m creating a very simple dynamic table. Working to include the data, but I don’t know how to remove only the line I clicked on on the button delete. I made a function deletar() but she searches…
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answers23
viewshow to change the color of a text via a conditional with Javascript
Good guys, good guys! I am creating an app that counts the score of a volleyball game, but I would like to give an increment by changing the colors of the score to green for those in front, yellow…
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answers35
viewsHow do I send these form fields via email via PHP?
I got a ready-made website that has over 3,000 pages and many of them have a quote form. The problem is that the form action sends the data to an URL without extension. <form…
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answers9
viewsWhen I select one of the drop-down checkbox options created from D3.js instead of returning the correct value, it delivers Undefined
The code below is totally usual and was created via Visual Studio Code (https://codevisualstudio.com/) and the test page is created via Live Server Extension…
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answers16
viewsWhat is the best way to align my Divs next to each other?
Hello, I’m not getting the two news reports lined up next to each other. Can you please help? /* CSS Document */ body { margin-top: -1; width: 80%; margin-left: 10%; margin-right: 10%; } .top1 {…
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answers8
viewshow to make a form box float on carousel
Friends, I need help. I’m taking a test for dev. And I need to put the form box fixed on top of Carousel but I’ve already researched everything and I couldn’t. I wonder if you could help me?…
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answers1195
viewsCall php code on button
I would like to know how to call a php code on a button that triggers an iframe, and this code should be opened in iframe.
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answer34
viewsSlider when clicking stay on Fullscreen
Hello guys I’m putting together a web project, and I would like to know about a slider that when click stay on fullscreen, I’m not finding a good option. I wanted something similar to the Tecmundo…
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answer53
viewsSlidebar does not work
Good afternoon! So I have a sliderbar on my page, only it’s not working and I’m not finding the error. Follow the code: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"…
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answer148
viewsWhat is the name of this effect?
I would like to know the name of this effect. Where has ALL, IDENTITY, LOGO and PRINT. By clicking on each item, the images are separated by categories. Click here to access…