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js+css3實(shí)現(xiàn)簡(jiǎn)單時(shí)鐘特效

 更新時(shí)間:2020年09月13日 09:41:01   作者:暗鎖讀客  
這篇文章主要為大家詳細(xì)介紹了js+css3實(shí)現(xiàn)簡(jiǎn)單時(shí)鐘特效,文中示例代碼介紹的非常詳細(xì),具有一定的參考價(jià)值,感興趣的小伙伴們可以參考一下

本文實(shí)例為大家分享了js+css3實(shí)現(xiàn)簡(jiǎn)單時(shí)鐘的具體代碼,供大家參考,具體內(nèi)容如下

1.實(shí)現(xiàn)了時(shí)鐘的特效,可以轉(zhuǎn)動(dòng),時(shí)間準(zhǔn)確,畫面美觀大氣;
2.用到了css3的transform: rotate,transform-origin:,偽元素,border-radius,定位,z-index等等

效果如圖:

代碼如下:

<!DOCTYPE html>
<html>

 <head>
 <meta charset="UTF-8">
 <title>CSS3時(shí)鐘特效</title>
 <link rel="shortcut icon" type="image/x-icon" href="img/an.ico" />
 <style>
  /*表盤邊框*/
  
  .clock {
  /* 設(shè)置大小 */
  width: 400px;
  height: 400px;
  position: relative;
  margin: 40px auto;
  /*上邊距*/
  border-radius: 50%;
  /*圓形*/
  box-shadow: 5px 5px 20px rgba(0, 0, 0, 0.5);
  /*表盤陰影*/
  background: #F5DEB3;
  border: 10px solid #FFFF00;
  }
  /*畫刻度的面板*/
  
  .box {
  width: 100%;
  height: 100%;
  position: absolute;
  top: 0;
  left: 0;
  }
  /*用來(lái)裝刻度和數(shù)字的div*/
  
  .box div {
  width: 0px;
  height: 200px;
  position: absolute;
  left: 200px;
  /*旋轉(zhuǎn)*/
  transform: rotate(0deg);
  /*設(shè)置基點(diǎn)為右下角*/
  transform-origin: bottom right;
  background: rgba(255, 0, 0, 0.5);
  }
  /*數(shù)字*/
  
  .box div i {
  float: left;
  margin-top: 20px;
  margin-left: -10px;
  font-style: normal;
  width: 20px;
  text-align: center;
  font-style: 18px;
  }
  /*小刻度*/
  
  .box div::after {
  content: "";
  position: absolute;
  background: #484848;
  width: 2px;
  height: 10px;
  left: -1px;
  }
  /*大刻度*/
  
  .box div.five::after {
  position: absolute;
  content: "";
  width: 4px;
  height: 20px;
  left: -2px;
  top: 0;
  background: #484848;
  border-radius: 0 0 2px 2px;
  }
  /*秒針樣式*/
  
  .second {
  width: 1px;
  height: 200px;
  background: red;
  position: absolute;
  left: 200px;
  /*距離表盤寬度一半*/
  margin-top: 30px;
  z-index: 10;
  transform: rotate(0deg);
  transform-origin: center 170px;
  /*定位旋轉(zhuǎn)位置*/
  }
  /*圓心樣式*/
  
  .second::after {
  content: "";
  position: absolute;
  width: 20px;
  height: 20px;
  background: red;
  border-radius: 50%;
  bottom: 20px;
  left: -10px;
  }
  /*分針樣式*/
  .minute {
  width: 2px;
  height: 140px;
  background: #8b8b8d;
  position: absolute;
  left: 199px;
  margin-top: 60px;
  z-index: 9;
  transform-origin: center bottom;
  transform: rotate(12deg);
  animation: minute 60s linear infinite;
  }
  /*時(shí)針樣式*/
  
  .hour {
  width: 6px;
  height: 100px;
  background: #333;
  position: absolute;
  left: 197px;
  margin-top: 100px;
  z-index: 8;
  border-radius: 3px;
  transform: rotate(2deg);
  transform-origin: center bottom;
  animation: minute 60s linear infinite;
  }
 </style>
 </head>

 <body>
 <div class="clock">
  <div class="box"></div>
  <div class="second"></div>
  <div class="minute"></div>
  <div class="hour"></div>
 </div>

 <script>
  var box = document.getElementsByClassName("box")[0];
  var ssObj = document.getElementsByClassName("second")[0];
  var mmObj = document.getElementsByClassName("minute")[0];
  var hhObj = document.getElementsByClassName("hour")[0];
  /*獲取當(dāng)前時(shí)間*/
  var date = new Date();
  var hh = date.getHours();
  var mm = date.getMinutes();
  var ss = date.getSeconds();
  /*計(jì)算頁(yè)面指針加載時(shí)的角度*/
  hhDeg = 360 * (hh % 12) / 12;
  mmDeg = 360 * mm / 60;
  ssDeg = 360 * ss / 60;
  hhObj.style.transform = "rotate(" + hhDeg + "deg)";
  mmObj.style.transform = "rotate(" + mmDeg + "deg)";
  ssObj.style.transform = "rotate(" + ssDeg + "deg)";
      // 定義初始刻度的度數(shù)
  var Deg = 0;
  /*畫刻度*/
  for (var i = 0; i < 60; i++) {
  var div1 = document.createElement("div"); //創(chuàng)建一個(gè)div
  var hourNum = i / 5;
  //當(dāng)為5時(shí)
  if (hourNum == 0) hourNum = 12;
  if (i % 5 == 0) { //大刻度
   div1.className = "five";
   div1.innerHTML = "<i>" + hourNum + "</i>"
  }
  div1.style.transform = "rotate(" + Deg + "deg)";
  box.appendChild(div1);
  Deg += 6;// 每?jī)蓚€(gè)刻度之間是6度
  }
  /*指針轉(zhuǎn)動(dòng)的函數(shù)*/
  function drawSS() {
  // 秒針的度數(shù)
  ssDeg = 360 * ss / 60;
  // 分針的度數(shù)
  mmDeg1 = 360 * mm / 60;
  // 時(shí)針的度數(shù)
  hhDeg1 = 360 * (hh % 12) / 12;
  // 分針每秒走的位置
  mmDeg = mmDeg1 + (6 * ss / 60);
  // 時(shí)針每分鐘走的位置
  hhDeg = hhDeg1 + (30 * mm / 60);
  
  hhObj.style.transform = "rotate(" + hhDeg + "deg)";
  mmObj.style.transform = "rotate(" + mmDeg + "deg)";
  ssObj.style.transform = "rotate(" + ssDeg + "deg)";
  ss += 1;
  if (ss > 60) {
   ss = 1;
   mm += 1;
  }
  if (mm == 60) {
   mm = 0;
   hh += 1;
  }
  setTimeout(function() {
   drawSS();
  }, 1000);
  }
  drawSS();
 </script>
 </body>

</html>

精簡(jiǎn)版:

<!DOCTYPE html>
<html>

 <head>
 <meta charset="UTF-8">
 <title>CSS3時(shí)鐘特效</title>
 <link rel="shortcut icon" type="image/x-icon" href="img/an.ico" />
 <style>
  /*表盤邊框*/
  
  .clock {
  /* 設(shè)置大小 */
  width: 400px;
  height: 400px;
  position: relative;
  margin: 40px auto;
  /*上邊距*/
  border-radius: 50%;
  /*圓形*/
  box-shadow: 5px 5px 20px rgba(0, 0, 0, 0.5);
  /*表盤陰影*/
  background: #F5DEB3;
  border: 10px solid #FFFF00;
  }
  /*畫刻度的面板*/
  
  .box {
  width: 100%;
  height: 100%;
  position: absolute;
  top: 0;
  left: 0;
  }
  /*用來(lái)裝刻度的div*/
  
  .box div {
  width: 0px;
  height: 200px;
  position: absolute;
  left: 200px;
  /*旋轉(zhuǎn)*/
  transform: rotate(0deg);
  /*設(shè)置基點(diǎn)為右下角*/
  transform-origin: bottom right;
  background: rgba(255, 0, 0, 0.5);
  }
  /*小刻度*/
  
  .box div:after {
  content: "";
  position: absolute;
  background: #484848;
  width: 2px;
  height: 10px;
  left: -1px;
  }
  /*大刻度*/
  
  .box div.five:after {
  position: absolute;
  content: "";
  width: 4px;
  height: 20px;
  left: -2px;
  top: 0;
  background: #484848;
  border-radius: 0 0 2px 2px;
  }
  /*秒針樣式*/
  
  .second {
  width: 1px;
  height: 200px;
  background: red;
  position: absolute;
  left: 200px;
  /*距離表盤寬度一半*/
  margin-top: 30px;
  z-index: 10;
  transform: rotate(0deg);
  transform-origin: center 170px;
  /*定位旋轉(zhuǎn)位置*/
  }
  /*圓心樣式*/
  
  .second:after {
  content: "";
  position: absolute;
  width: 20px;
  height: 20px;
  background: red;
  border-radius: 50%;
  bottom: 20px;
  left: -10px;
  }
  /*分針樣式*/
  .minute {
  width: 2px;
  height: 140px;
  background: #8b8b8d;
  position: absolute;
  left: 199px;
  margin-top: 60px;
  z-index: 9;
  transform-origin: center bottom;
  transform: rotate(12deg);
  }
  /*時(shí)針樣式*/
  
  .hour {
  width: 6px;
  height: 100px;
  background: #333;
  position: absolute;
  left: 197px;
  margin-top: 100px;
  z-index: 8;
  border-radius: 3px;
  transform: rotate(2deg);
  transform-origin: center bottom;
  }
 </style>
 </head>

 <body>
 <div class="clock">
  <div class="box"></div>
  <div class="second"></div>
  <div class="minute"></div>
  <div class="hour"></div>
 </div>

 <script>
  var box = document.getElementsByClassName("box")[0];
  var ssObj = document.getElementsByClassName("second")[0];
  var mmObj = document.getElementsByClassName("minute")[0];
  var hhObj = document.getElementsByClassName("hour")[0];
  /*獲取當(dāng)前時(shí)間*/
  var date = new Date();
  var hh = date.getHours();
  var mm = date.getMinutes();
  var ss = date.getSeconds();
  /*計(jì)算頁(yè)面指針加載時(shí)的角度*/
  drawSS();
      // 定義初始刻度的度數(shù)
  var Deg = 0;
  /*畫刻度*/
  for (var i = 0; i < 60; i++) {
  var div1 = document.createElement("div"); //創(chuàng)建一個(gè)div
  //當(dāng)為5時(shí)
  if (i % 5 == 0) { //大刻度
   div1.className = "five";
  }
  div1.style.transform = "rotate(" + Deg + "deg)";
  box.appendChild(div1);
  Deg += 6;// 每?jī)蓚€(gè)刻度之間是6度
  }
  /*指針轉(zhuǎn)動(dòng)的函數(shù)*/
  function drawSS() {
  // 秒針的度數(shù)
  ssDeg = 360 * ss / 60;
  // 分針的度數(shù)
  mmDeg = 360 * mm / 60 + (6 * ss / 60);
  // 時(shí)針的度數(shù)
  hhDeg = 360 * (hh % 12) / 12 + (30 * mm / 60);
  // 旋轉(zhuǎn)
  hhObj.style.transform = "rotate(" + hhDeg + "deg)";
  mmObj.style.transform = "rotate(" + mmDeg + "deg)";
  ssObj.style.transform = "rotate(" + ssDeg + "deg)";
  ss += 1;
  // 每秒鐘調(diào)用一次
  setTimeout(function() {
   drawSS();
  }, 1000);
  }
  
 </script>
 </body>

</html>

以上就是本文的全部?jī)?nèi)容,希望對(duì)大家的學(xué)習(xí)有所幫助,也希望大家多多支持腳本之家。

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