使用HTML和CSS实现标尺

<div class="ruler"></div>

.ruler {
  width: 100%;
  height: 20px;
  background-color: #f2f2f2;
}

.ruler::before {
  content: "";
  display: block;
  width: 1px;
  height: 10px;
  background-color: #000;
  position: absolute;
  top: 0;
}

.ruler::after {
  content: "";
  display: block;
  width: 1px;
  height: 20px;
  background-color: #000;
  position: absolute;
  top: 0;
}

.ruler::before,
.ruler::after {
  left: 0;
}

.ruler::before {
  height: 5px;
}

.ruler::after {
  height: 10px;
}

.ruler::before,
.ruler::after {
  content: "";
  display: block;
  width: 1px;
  height: 20px;
  background-color: #000;
  position: absolute;
  top: 0;
}

.ruler::before {
  height: 5px;
}

.ruler::after {
  height: 10px;
}

.ruler::before:nth-child(10n)::after {
  content: attr(data-label);
  position: absolute;
  top: 15px;
  font-size: 12px;
  transform: translateX(-50%);
}

<div class="ruler">
  <div data-label="0"></div>
  <div data-label="10"></div>
  <div data-label="20"></div>
  <div data-label="30"></div>
  <div data-label="40"></div>
  <div data-label="50"></div>
  <div data-label="60"></div>
  <div data-label="70"></div>
  <div data-label="80"></div>
  <div data-label="90"></div>
  <div data-label="100"></div>
</div>