【CSS】 - 电子数字屏

效果图：

1、HTML

<div class="digits" id="digits" v-html="html"></div>

2、JS

clocknum(num) {

  var html = "";

  var strarr = num.toString().split("");

  var digit_to_name =

    "zero one two three four five six seven eight nine".split(" ");

  for (var i = 0; i < strarr.length; i++) {

    if (strarr[i] == ".") {

      html += '<div class="dot"></div>';

    } else {

      var clasname = digit_to_name[strarr[i]];

      html +=

        '<div class="' +

        clasname +

        '">' +

        '<span class="d1"></span>' +

        '<span class="d2"></span>' +

        '<span class="d3"></span>' +

        '<span class="d4"></span>' +

        '<span class="d5"></span>' +

        '<span class="d6"></span>' +

        '<span class="d7"></span>' +

        "</div>";

    }

  }

  this.html = html;

  console.log("html: ", html);

}

3、CSS

.light {
  width: 200px;
  height: 60px;
  text-align: center;
  ::v-deep .digits {
    div {
      text-align: left;
      position: relative;
      width: 28px;
      height: 50px;
      display: inline-block;
      margin: 0 4px;
    }
    div span {
      background-color: #272e38;
      border-color: #272e38;
    }
    div span {
      opacity: 0;
      position: absolute;
      -webkit-transition: 0.25s;
      -moz-transition: 0.25s;
      transition: 0.25s;
    }
    div span:before,
    div span:after {
      content: "";
      position: absolute;
      width: 0;
      height: 0;
      border: 5px solid transparent;
    }

    .d1 {
      height: 5px;
      width: 16px;
      top: 0;
      left: 6px;
    }
    .d1:before {
      border-width: 0 5px 5px 0;
      border-right-color: inherit;
      left: -5px;
    }
    .d1:after {
      border-width: 0 0 5px 5px;
      border-left-color: inherit;
      right: -5px;
    }

    .d2 {
      height: 5px;
      width: 16px;
      top: 24px;
      left: 6px;
    }
    .d2:before {
      border-width: 3px 4px 2px;
      border-right-color: inherit;
      left: -8px;
    }
    .d2:after {
      border-width: 3px 4px 2px;
      border-left-color: inherit;
      right: -8px;
    }

    .d3 {
      height: 5px;
      width: 16px;
      top: 48px;
      left: 6px;
    }
    .d3:before {
      border-width: 5px 5px 0 0;
      border-right-color: inherit;
      left: -5px;
    }
    .d3:after {
      border-width: 5px 0 0 5px;
      border-left-color: inherit;
      right: -5px;
    }

    .d4 {
      width: 5px;
      height: 14px;
      top: 7px;
      left: 0;
    }
    .d4:before {
      border-width: 0 5px 5px 0;
      border-bottom-color: inherit;
      top: -5px;
    }
    .d4:after {
      border-width: 0 0 5px 5px;
      border-left-color: inherit;
      bottom: -5px;
    }

    .d5 {
      width: 5px;
      height: 14px;
      top: 7px;
      right: 0;
    }
    .d5:before {
      border-width: 0 0 5px 5px;
      border-bottom-color: inherit;
      top: -5px;
    }
    .d5:after {
      border-width: 5px 0 0 5px;
      border-top-color: inherit;
      bottom: -5px;
    }

    .d6 {
      width: 5px;
      height: 14px;
      top: 32px;
      left: 0;
    }
    .d6:before {
      border-width: 0 5px 5px 0;
      border-bottom-color: inherit;
      top: -5px;
    }
    .d6:after {
      border-width: 0 0 5px 5px;
      border-left-color: inherit;
      bottom: -5px;
    }

    .d7 {
      width: 5px;
      height: 14px;
      top: 32px;
      right: 0;
    }
    .d7:before {
      border-width: 0 0 5px 5px;
      border-bottom-color: inherit;
      top: -5px;
    }
    .d7:after {
      border-width: 5px 0 0 5px;
      border-top-color: inherit;
      bottom: -5px;
    }

    /* 1 */
    div.one .d5,
    div.one .d7 {
      opacity: 1;
    }

    /* 2 */
    div.two .d1,
    div.two .d5,
    div.two .d2,
    div.two .d6,
    div.two .d3 {
      opacity: 1;
    }

    /* 3 */
    div.three .d1,
    div.three .d5,
    div.three .d2,
    div.three .d7,
    div.three .d3 {
      opacity: 1;
    }

    /* 4 */
    div.four .d5,
    div.four .d2,
    div.four .d4,
    div.four .d7 {
      opacity: 1;
    }

    /* 5 */
    div.five .d1,
    div.five .d2,
    div.five .d4,
    div.five .d3,
    div.five .d7 {
      opacity: 1;
    }

    /* 6 */
    div.six .d1,
    div.six .d2,
    div.six .d4,
    div.six .d3,
    div.six .d6,
    div.six .d7 {
      opacity: 1;
    }

    /* 7 */
    div.seven .d1,
    div.seven .d5,
    div.seven .d7 {
      opacity: 1;
    }

    /* 8 */
    div.eight .d1,
    div.eight .d2,
    div.eight .d3,
    div.eight .d4,
    div.eight .d5,
    div.eight .d6,
    div.eight .d7 {
      opacity: 1;
    }

    /* 9 */
    div.nine .d1,
    div.nine .d2,
    div.nine .d3,
    div.nine .d4,
    div.nine .d5,
    div.nine .d7 {
      opacity: 1;
    }

    /* 0 */
    div.zero .d1,
    div.zero .d3,
    div.zero .d4,
    div.zero .d5,
    div.zero .d6,
    div.zero .d7 {
      opacity: 1;
    }

    /* dot */
    div.dot {
      width: 5px;
    }
    .dot:after {
      width: 5px;
      height: 5px;
      content: "";
      position: absolute;
      left: 0;
      bottom: 0px;
      background-color: #272e38;
    }
  }
}