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16 October 2025

Exemplos de animação CSS: carregamento, cubos, esferas

HTML

CSS

/* Font import */
@import url("https://fonts.googleapis.com/css?family=Press+Start+2P&display=swap");

/* General styling */
* {
  font-family: "Press Start 2P", cursive;
  user-select: none;
  box-sizing: border-box; /* Ensure all elements include padding and border in the width/height */
}

body {
  background: #1a1a1a; /* Dark background */
  margin: 0; /* Remove default body margin */
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  height: 100vh; /* Full viewport height */
}

/* Game container */
.tabel {
  width: 480px;
  height: 480px;
  background: #2b2b2b; /* Dark gray background */
  border-radius: 20px;
  border: 2px solid #000; /* Black border */
  box-shadow: 0 0 20px rgba(0, 0, 0, 0.5); /* Subtle shadow */
  display: flex;
  flex-direction: column; /* Align children vertically */
  justify-content: center; /* Center horizontally */
  align-items: center; /* Center vertically */
}

/* Game board */
.board {
  width: 90%;
  height: 90%;
  display: grid;
  grid-template-rows: repeat(3, 1fr);
  grid-template-columns: repeat(3, 1fr);
  grid-gap: 10px;
  padding: 20px;
}

/* Game cell */
.board > span {
  background: #3a3a3a; /* Dark gray background */
  color: #fff;
  font-size: 4em;
  text-align: center;
  border-radius: 10px;
  cursor: pointer;
  transition: background-color 0.3s ease; /* Smooth background color transition */
}

/* Hover effect */
.board > span:hover {
  background: #4a4a4a; /* Slightly darker gray on hover */
}

/* Click effect */
.board > span:active {
  transform: scale(0.95); /* Slight scale down on click */
}

/* Reset button */
#reset {
  margin-top: 20px;
  padding: 10px 20px;
  background: #d9534f; /* Red background */
  color: #fff;
  border: none;
  border-radius: 5px;
  cursor: pointer;
  transition: background-color 0.3s ease; /* Smooth background color transition */
  align-self: center; /* Center horizontally */
}

/* Reset button hover effect */
#reset:hover {
  background: #c9302c; /* Darker red on hover */
}

/* Win class */
.win {
  background: #f70000; /* Blue background for win indication */
  animation: pulse 1s infinite alternate; /* Animation for highlighting */
}

/* Animation keyframes */
@keyframes pulse {
  from {
    box-shadow: 0 0 0px #ffffff00;
  }
  to {
    box-shadow: 0 0 10px 5px rgb(255, 255, 255); /* Slightly larger shadow when highlighted */
  }
}

JS

'use strict'

const _ = document,
          cols = Array.from(_.querySelectorAll('.board > span')),
					reset = _.querySelector('#reset')
let cur = true
let arr = new Array(9).fill(null)
const wins = [
  [0, 1, 2],
  [3, 4, 5],
  [6, 7, 8],
  [0, 3, 6],
  [1, 4, 7],
  [2, 5, 8],
  [0, 4, 8],
  [2, 4, 6]
]
function event(can) {
	reset.addEventListener('click', fnreset)
  for(let col of cols)
    if(can)
      col.addEventListener('click', play)
    else
      col.removeEventListener('click', play)
}
event(true)
function play(e) {
  const __ = e.target
  if(!__.innerHTML){
    cur = !cur
    __.innerHTML = cur ? '<h1 name="O">O</h1>' :  '<h1 name="X">X</h1>'
    move(parseInt(__.id.split(/\D+/g)[1]), __.childNodes[0].getAttribute('name'))
  }
}

function move(ind, sign) {
  arr[ind] = sign
  console.log(arr)

for (let i = 0; i < wins.length; i++) {
     let [a, b, c] = wins[i] 
      if(cmp(arr[a], arr[b], arr[c])){
        console.log(sign, ' wins')
        event(false)
        cols[a].classList.add('win')
        cols[b].classList.add('win')
        cols[c].classList.add('win')
      }
  }
}
function cmp(a, b, c) {
  if(a && b && c)
    return (a === b) && (a === c) && (b === c)
}

function fnreset() {
    for(let col of cols){
      col.classList.remove('win')
      col.innerHTML = ''
    }
    arr = new Array(9).fill(null)
    event(true)
}

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