新年倒计时

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html

css

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html

css

@import url("https://fonts.googleapis.com/css?family=Aleo");

:root {
  font-family: "Aleo", sans-serif;
}

html,
body {
  width: 100%;
  height: 100%;
  padding: 0;
  margin: 0;
  background: rgb(119, 13, 13);
  background: radial-gradient(
    circle,
    rgba(119, 13, 13, 0.92) 64%,
    rgba(0, 0, 0, 0.6) 100%
  );
}

canvas {
  width: 100%;
  height: 100%;
}

.label {
  font-size: 2.2rem;
  background: url("https://www.jq22.com/tp/6377582078649082695643686.png");
  background-clip: text;
  -webkit-background-clip: text;
  color: transparent;
  animation: moveBg 30s linear infinite;
}

@keyframes moveBg {
  0% {
    background-position: 0% 30%;
  }
  100% {
    background-position: 1000% 500%;
  }
}

.middle {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  user-select: none;
}

.time {
  color: #d99c3b;
  text-transform: uppercase;
  display: flex;
  justify-content: center;
}

.time span {
  padding: 0 14px;
  font-size: 0.8rem;
}

.time span div {
  font-size: 3rem;
}

@media (max-width: 740px) {
  .label {
    font-size: 1.7rem;
  }
  .time span {
    padding: 0 16px;
    font-size: 0.6rem;
  }
  .time span div {
    font-size: 2rem;
  }
}

JavaScript

class Snowflake {
  constructor() {
    this.x = 0;
    this.y = 0;
    this.vx = 0;
    this.vy = 0;
    this.radius = 0;
    this.alpha = 0;

this.reset();
  }

reset() {
    this.x = this.randBetween(0, window.innerWidth);
    this.y = this.randBetween(0, -window.innerHeight);
    this.vx = this.randBetween(-3, 3);
    this.vy = this.randBetween(2, 5);
    this.radius = this.randBetween(1, 4);
    this.alpha = this.randBetween(0.1, 0.9);
  }

randBetween(min, max) {
    return min + Math.random() * (max - min);
  }

update() {
    this.x += this.vx;
    this.y += this.vy;

if (this.y + this.radius > window.innerHeight) {
      this.reset();
    }
  }
}

class Snow {
  constructor() {
    this.canvas = document.createElement("canvas");
    this.ctx = this.canvas.getContext("2d");

document.body.appendChild(this.canvas);

window.addEventListener("resize", () => this.onResize());
    this.onResize();
    this.updateBound = this.update.bind(this);
    requestAnimationFrame(this.updateBound);

this.createSnowflakes();
  }

onResize() {
    this.width = window.innerWidth;
    this.height = window.innerHeight;
    this.canvas.width = this.width;
    this.canvas.height = this.height;
  }

createSnowflakes() {
    const flakes = window.innerWidth / 4;

this.snowflakes = [];

for (let s = 0; s < flakes; s++) {
      this.snowflakes.push(new Snowflake());
    }
  }

update() {
    this.ctx.clearRect(0, 0, this.width, this.height);

for (let flake of this.snowflakes) {
      flake.update();

this.ctx.save();
      this.ctx.fillStyle = "#FFF";
      this.ctx.beginPath();
      this.ctx.arc(flake.x, flake.y, flake.radius, 0, Math.PI * 2);
      this.ctx.closePath();
      this.ctx.globalAlpha = flake.alpha;
      this.ctx.fill();
      this.ctx.restore();
    }
    requestAnimationFrame(this.updateBound);
  }
}

new Snow();

////////////////////////////////////////////////////////////
// Simple CountDown Clock

const d = document.getElementById("d");
const h = document.getElementById("h");
const m = document.getElementById("m");
const s = document.getElementById("s");

function getTrueNumber(num) {
  return num < 10 ? "0" + num : num;
}

function calculateRemainingTime() {
  const comingYear = new Date().getFullYear() + 1;
  const comingDate = new Date(`Jan 1, ${comingYear} 00:00:00`);

const now = new Date();
  const remainingTime = comingDate.getTime() - now.getTime();
  const days = Math.floor(remainingTime / (1000 * 60 * 60 * 24));
  const hours = Math.floor((remainingTime % (1000 * 60 * 60 * 24)) / (1000 * 60 * 60));
  const mins = Math.floor((remainingTime % (1000 * 60 * 60)) / (1000 * 60));
  const secs = Math.floor((remainingTime % (1000 * 60)) / 1000);

d.innerHTML = getTrueNumber(days);
  h.innerHTML = getTrueNumber(hours);
  m.innerHTML = getTrueNumber(mins);
  s.innerHTML = getTrueNumber(secs);

return remainingTime;
}

function initCountdown() {
  const interval = setInterval(() => {
    const remainingTimeInMs = calculateRemainingTime();

if (remainingTimeInMs <= 1000) {
      clearInterval(interval);
      initCountdown();
    }
  }, 1000);
}

initCountdown();

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