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    纯CSS3实现运行时钟的示例代码

    作者:JcqbE 时间:2021-01-27 15:03

    运行效果

    代码实现

    html

    <div id="watch">
      <div class="frame-face"></div>
      <ul class="minute-marks">
        <li></li><li></li><li></li><li></li><li></li><li></li>
        <li></li><li></li><li></li><li></li><li></li><li></li>
        <li></li><li></li><li></li><li></li><li></li><li></li>
        <li></li><li></li><li></li><li></li><li></li><li></li>
        <li></li><li></li><li></li><li></li><li></li><li></li>
        <li></li><li></li><li></li><li></li><li></li><li></li>
        <li></li><li></li><li></li><li></li><li></li><li></li>
        <li></li><li></li><li></li><li></li><li></li><li></li>
      </ul>
      <div class="digital-wrap">
        <ul class="digit-hours">
          <li>23</li>
          <li>00</li><li>01</li><li>02</li><li>03</li><li>04</li><li>05</li>
          <li>06</li><li>07</li><li>08</li><li>09</li><li>10</li><li>11</li>
          <li>12</li><li>13</li><li>14</li><li>15</li><li>16</li><li>17</li>
          <li>18</li><li>19</li><li>20</li><li>21</li><li>22</li>
        </ul>
        <ul class="digit-minutes">
          <li>10</li><li>11</li>
          <li>12</li><li>13</li><li>14</li><li>15</li><li>16</li><li>17</li>
          <li>18</li><li>19</li><li>20</li><li>21</li><li>22</li><li>23</li>
          <li>24</li><li>25</li><li>26</li><li>27</li><li>28</li><li>29</li>
          <li>30</li><li>31</li><li>32</li><li>33</li><li>34</li><li>35</li>
          <li>36</li><li>37</li><li>38</li><li>39</li><li>40</li><li>41</li>
          <li>42</li><li>43</li><li>44</li><li>45</li><li>46</li><li>47</li>
          <li>48</li><li>49</li><li>50</li><li>51</li><li>52</li><li>53</li>
          <li>54</li><li>55</li><li>56</li><li>57</li><li>58</li><li>59</li>
          <li>00</li><li>01</li><li>02</li><li>03</li><li>04</li><li>05</li>
          <li>06</li><li>07</li><li>08</li><li>09</li>
        </ul>
        <ul class="digit-seconds">
          <li>20</li><li>21</li><li>22</li><li>23</li>
          <li>24</li><li>25</li><li>26</li><li>27</li><li>28</li><li>29</li>
          <li>30</li><li>31</li><li>32</li><li>33</li><li>34</li><li>35</li>
          <li>36</li><li>37</li><li>38</li><li>39</li><li>40</li><li>41</li>
          <li>42</li><li>43</li><li>44</li><li>45</li><li>46</li><li>47</li>
          <li>48</li><li>49</li><li>50</li><li>51</li><li>52</li><li>53</li>
          <li>54</li><li>55</li><li>56</li><li>57</li><li>58</li><li>59</li>
          <li>00</li><li>01</li><li>02</li><li>03</li><li>04</li><li>05</li>
          <li>06</li><li>07</li><li>08</li><li>09</li><li>10</li><li>11</li>
          <li>12</li><li>13</li><li>14</li><li>15</li><li>16</li><li>17</li>
          <li>18</li><li>19</li>
        </ul>
      </div>
      <ul class="digits">
        <li>1</li><li>2</li><li>3</li><li>4</li><li>5</li><li>6</li>
        <li>7</li><li>8</li><li>9</li><li>10</li><li>11</li><li>12</li>
      </ul>
      <div class="hours-hand"></div>
      <div class="minutes-hand"></div>
      <div class="seconds-hand"></div>
    </div>

    CSS3

    body { font-size:62.5%; margin:1em; background:#232425 }
    ul { list-style:none; margin:0; padding:0 }
    #watch { font-size:1em; position:relative }
    #watch .frame-face {
      position:relative;
      width:30em;
      height:30em;
      margin:2em auto;
      border-radius:15em;
      background:-webkit-linear-gradient(top, #f9f9f9,#666);
      background:-moz-linear-gradient(top, #f9f9f9,#666);
      background:linear-gradient(to bottom, #f9f9f9,#666);
      box-shadow:rgba(0,0,0,.8) .5em .5em 4em;
    }
    #watch .frame-face:before {
      content:'';
      width:29.4em;
      height:29.4em;
      border-radius:14.7em;
      position:absolute;
      top:.3em; left:.3em;
      background:
        -webkit-linear-gradient(135deg, rgba(246,248,249,0) 0%,rgba(229,235,238,1) 50%,rgba(205,212,217,1) 51%,rgba(245,247,249,0) 100%),
        -webkit-radial-gradient(center, ellipse cover, rgba(246,248,249,1) 0%,rgba(229,235,238,1) 65%,rgba(205,212,217,1) 66%,rgba(245,247,249,1) 100%);
      background:
        -moz-linear-gradient(135deg, rgba(246,248,249,0) 0%,rgba(229,235,238,1) 50%,rgba(205,212,217,1) 51%,rgba(245,247,249,0) 100%),
        -moz-radial-gradient(center, ellipse cover, rgba(246,248,249,1) 0%,rgba(229,235,238,1) 65%,rgba(205,212,217,1) 66%,rgba(245,247,249,1) 100%);
      background:
        linear-gradient(135deg, rgba(246,248,249,0) 0%,rgba(229,235,238,1) 50%,rgba(205,212,217,1) 51%,rgba(245,247,249,0) 100%),
        radial-gradient(ellipse at center, rgba(246,248,249,1) 0%,rgba(229,235,238,1) 65%,rgba(205,212,217,1) 66%,rgba(245,247,249,1) 100%);
    }
    #watch .frame-face:after {
      content:'';
      width:28em;
      height:28em;
      border-radius:14.2em;
      position:absolute;
      top:.9em; left:.9em;
      box-shadow:inset rgba(0,0,0,.2) .2em .2em 1em;
      border:.1em solid rgba(0,0,0,.2);
      background:-webkit-linear-gradient(top, #fff, #ccc);
      background:-moz-linear-gradient(top, #fff, #ccc);
      background:linear-gradient(to bottom, #fff, #ccc);
    }
    #watch .minute-marks li {
      display:block;
      width:.2em;
      height:.6em;
      background:#929394;
      position:absolute;
      top:50%; left:50%;
      margin:-.4em 0 0 -.1em;
    }
    #watch .minute-marks li:first-child {transform:rotate(6deg) translateY(-12.7em)}
    #watch .minute-marks li:nth-child(2) {transform:rotate(12deg) translateY(-12.7em)}
    #watch .minute-marks li:nth-child(3) {transform:rotate(18deg) translateY(-12.7em)}
    #watch .minute-marks li:nth-child(4) {transform:rotate(24deg) translateY(-12.7em)}
    #watch .minute-marks li:nth-child(5) {transform:rotate(36deg) translateY(-12.7em)}
    #watch .minute-marks li:nth-child(6) {transform:rotate(42deg) translateY(-12.7em)}
    #watch .minute-marks li:nth-child(7) {transform:rotate(48deg) translateY(-12.7em)}
    #watch .minute-marks li:nth-child(8) {transform:rotate(54deg) translateY(-12.7em)}
    #watch .minute-marks li:nth-child(9) {transform:rotate(66deg) translateY(-12.7em)}
    #watch .minute-marks li:nth-child(10) {transform:rotate(72deg) translateY(-12.7em)}
    #watch .minute-marks li:nth-child(11) {transform:rotate(78deg) translateY(-12.7em)}
    #watch .minute-marks li:nth-child(12) {transform:rotate(84deg) translateY(-12.7em)}
    #watch .minute-marks li:nth-child(13) {transform:rotate(96deg) translateY(-12.7em)}
    #watch .minute-marks li:nth-child(14) {transform:rotate(102deg) translateY(-12.7em)}
    #watch .minute-marks li:nth-child(15) {transform:rotate(108deg) translateY(-12.7em)}
    #watch .minute-marks li:nth-child(16) {transform:rotate(114deg) translateY(-12.7em)}
    #watch .minute-marks li:nth-child(17) {transform:rotate(126deg) translateY(-12.7em)}
    #watch .minute-marks li:nth-child(18) {transform:rotate(132deg) translateY(-12.7em)}
    #watch .minute-marks li:nth-child(19) {transform:rotate(138deg) translateY(-12.7em)}
    #watch .minute-marks li:nth-child(20) {transform:rotate(144deg) translateY(-12.7em)}
    #watch .minute-marks li:nth-child(21) {transform:rotate(156deg) translateY(-12.7em)}
    #watch .minute-marks li:nth-child(22) {transform:rotate(162deg) translateY(-12.7em)}
    #watch .minute-marks li:nth-child(23) {transform:rotate(168deg) translateY(-12.7em)}
    #watch .minute-marks li:nth-child(24) {transform:rotate(174deg) translateY(-12.7em)}
    #watch .minute-marks li:nth-child(25) {transform:rotate(186deg) translateY(-12.7em)}
    #watch .minute-marks li:nth-child(26) {transform:rotate(192deg) translateY(-12.7em)}
    #watch .minute-marks li:nth-child(27) {transform:rotate(198deg) translateY(-12.7em)}
    #watch .minute-marks li:nth-child(28) {transform:rotate(204deg) translateY(-12.7em)}
    #watch .minute-marks li:nth-child(29) {transform:rotate(216deg) translateY(-12.7em)}
    #watch .minute-marks li:nth-child(30) {transform:rotate(222deg) translateY(-12.7em)}
    #watch .minute-marks li:nth-child(31) {transform:rotate(228deg) translateY(-12.7em)}
    #watch .minute-marks li:nth-child(32) {transform:rotate(234deg) translateY(-12.7em)}
    #watch .minute-marks li:nth-child(33) {transform:rotate(246deg) translateY(-12.7em)}
    #watch .minute-marks li:nth-child(34) {transform:rotate(252deg) translateY(-12.7em)}
    #watch .minute-marks li:nth-child(35) {transform:rotate(258deg) translateY(-12.7em)}
    #watch .minute-marks li:nth-child(36) {transform:rotate(264deg) translateY(-12.7em)}
    #watch .minute-marks li:nth-child(37) {transform:rotate(276deg) translateY(-12.7em)}
    #watch .minute-marks li:nth-child(38) {transform:rotate(282deg) translateY(-12.7em)}
    #watch .minute-marks li:nth-child(39) {transform:rotate(288deg) translateY(-12.7em)}
    #watch .minute-marks li:nth-child(40) {transform:rotate(294deg) translateY(-12.7em)}
    #watch .minute-marks li:nth-child(41) {transform:rotate(306deg) translateY(-12.7em)}
    #watch .minute-marks li:nth-child(42) {transform:rotate(312deg) translateY(-12.7em)}
    #watch .minute-marks li:nth-child(43) {transform:rotate(318deg) translateY(-12.7em)}
    #watch .minute-marks li:nth-child(44) {transform:rotate(324deg) translateY(-12.7em)}
    #watch .minute-marks li:nth-child(45) {transform:rotate(336deg) translateY(-12.7em)}
    #watch .minute-marks li:nth-child(46) {transform:rotate(342deg) translateY(-12.7em)}
    #watch .minute-marks li:nth-child(47) {transform:rotate(348deg) translateY(-12.7em)}
    #watch .minute-marks li:nth-child(48) {transform:rotate(354deg) translateY(-12.7em)}
    #watch .digits {
      width:30em;
      height:30em;
      border-radius:15em;
      position:absolute;
      top:0; left:50%;
      margin-left:-15em;
    }
    #watch .digits li {
      font-size:1.6em;
      display:block;
      width:1.6em;
      height:1.6em;
      position:absolute;
      top:50%; left:50%;
      line-height:1.6em;
      text-align:center;
      margin:-.8em 0 0 -.8em;
      font-weight:bold;
    }
    #watch .digits li:nth-child(1) { transform:translate(3.9em, -6.9em) }
    #watch .digits li:nth-child(2) { transform:translate(6.9em, -4em) }
    #watch .digits li:nth-child(3) { transform:translate(8em, 0) }
    #watch .digits li:nth-child(4) { transform:translate(6.8em, 4em) }
    #watch .digits li:nth-child(5) { transform:translate(3.9em, 6.9em) }
    #watch .digits li:nth-child(6) { transform:translate(0, 8em) }
    #watch .digits li:nth-child(7) { transform:translate(-3.9em, 6.9em) }
    #watch .digits li:nth-child(8) { transform:translate(-6.8em, 4em) }
    #watch .digits li:nth-child(9) { transform:translate(-8em, 0) }
    #watch .digits li:nth-child(10) { transform:translate(-6.9em, -4em) }
    #watch .digits li:nth-child(11) { transform:translate(-3.9em, -6.9em) }
    #watch .digits li:nth-child(12) { transform:translate(0, -8em) }
    #watch .digits:before {
      content:'';
      width:1.6em;
      height:1.6em;
      border-radius:.8em;
      position:absolute;
      top:50%; left:50%;
      margin:-.8em 0 0 -.8em;
      background:#121314;
    }
    #watch .digits:after {
      content:'';
      width:4em;
      height:4em;
      border-radius:2.2em;
      position:absolute;
      top:50%; left:50%;
      margin:-2.1em 0 0 -2.1em;
      border:.1em solid #c6c6c6;
      background:-webkit-radial-gradient(center, ellipse cover, rgba(200,200,200,0), rgba(190,190,190,1) 90%, rgba(130,130,130,1) 100%);
      background:-moz-radial-gradient(center, ellipse cover, rgba(200,200,200,0), rgba(190,190,190,1) 90%, rgba(130,130,130,1) 100%);
      background:radial-gradient(ellipse at center, rgba(200,200,200,0), rgba(190,190,190,1) 90%, rgba(130,130,130,1) 100%);
    }
    @keyframes hours { to {transform:rotate(335deg)} }
    #watch .hours-hand {
      width:.8em;
      height:7em;
      border-radius:0 0 .9em .9em;
      background:#232425;
      position:absolute;
      bottom:50%; left:50%;
      margin:0 0 -.8em -.4em;
      box-shadow:#232425 0 0 2px;
      transform-origin:0.4em 6.2em;
      transform:rotate(-25deg);
      animation:hours 43200s linear 0s infinite;
    }
    #watch .hours-hand:before {
      content:'';
      background:inherit;
      width:1.8em;
      height:.8em;
      border-radius:0 0 .8em .8em;
      box-shadow:#232425 0 0 1px;
      position:absolute;
      top:-.7em; left:-.5em;
    }
    #watch .hours-hand:after {
      content:'';
      width:0; height:0;
      border:.9em solid #232425;
      border-width:0 .9em 2.4em .9em;
      border-left-color:transparent;
      border-right-color:transparent;
      position:absolute;
      top:-3.1em; left:-.5em;
    }
    @keyframes minutes { to {transform:rotate(422deg)} }
    #watch .minutes-hand {
      width:.8em;
      height:12.5em;
      border-radius:.5em;
      background:#343536;
      position:absolute;
      bottom:50%; left:50%;
      margin:0 0 -1.5em -.4em;
      box-shadow:#343536 0 0 2px;
      transform-origin:0.4em 11em;
      transform:rotate(62deg);
      animation:minutes 3600s linear 0s infinite;
    }
    @keyframes seconds { to {transform:rotate(480deg)} }
    #watch .seconds-hand {
      width:.2em;
      height:14em;
      border-radius:.1em .1em 0 0/10em 10em 0 0;
      background:#c00;
      position:absolute;
      bottom:50%; left:50%;
      margin:0 0 -2em -.1em;
      box-shadow:rgba(0,0,0,.8) 0 0 .2em;
      transform-origin:0.1em 12em;
      transform:rotate(120deg);
      animation:seconds 60s steps(60, end) 0s infinite;
    }
    #watch .seconds-hand:after {
      content:'';
      width:1.4em;
      height:1.4em;
      border-radius:.7em;
      background:inherit;
      position:absolute;
      left:-.65em; bottom:1.35em;
    }
    #watch .seconds-hand:before {
      content:'';
      width:.8em;
      height:3em;
      border-radius:.2em .2em .4em .4em/.2em .2em 2em 2em;
      box-shadow:rgba(0,0,0,.8) 0 0 .2em;
      background:inherit;
      position:absolute;
      left:-.35em; bottom:-3em;
    }
    #watch .digital-wrap {
      width:9em;
      height:3em;
      border:.1em solid #222;
      border-radius:.2em;
      position:absolute;
      top:50%; left:50%;
      margin:3em 0 0 -4.5em;
      overflow:hidden;
      background:#4c4c4c;
      background:-webkit-linear-gradient(top, #4c4c4c 0%,#0f0f0f 100%);
      background:-moz-linear-gradient(top, #4c4c4c 0%, #0f0f0f 100%);
      background:-ms-linear-gradient(top, #4c4c4c 0%,#0f0f0f 100%);
      background:-o-linear-gradient(top, #4c4c4c 0%,#0f0f0f 100%);
      background:linear-gradient(to bottom, #4c4c4c 0%,#0f0f0f 100%);
    }
    #watch .digital-wrap ul {
      float:left;
      width:2.85em;
      height:3em;
      border-right:.1em solid #000;
      color:#ddd;
      font-family:Consolas, monaco, monospace;
    }
    #watch .digital-wrap ul:last-child { border:none }
    #watch .digital-wrap li {
      font-size:1.5em;
      line-height:2;
      letter-spacing:2px;
      text-align:center;
      position:relative;
      left:1px;
    }
    #watch .digit-minutes li {
      animation:dsm 3600s steps(60, end) 0s infinite;
    }
    #watch .digit-seconds li {
      animation:dsm 60s steps(60, end) 0s infinite;
    }
    @keyframes dsm {
      to { transform:translateY(-120em) }
    }