好看的横向水平时间轴 纯 html + css

<div class="toggle">
    <span>☀️</span>
    <input type="checkbox" id="toggle-switch" />
    <label for="toggle-switch"></label>
    <span>🌙</span>
</div>
<div class="main-container">
    <div class="steps-container">
        <div class="step completed">
            <svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24">
                <path d="M20.285 2l-11.285 11.567-5.286-5.011-3.714 3.716 9 8.728 15-15.285z" />
            </svg>
            <div class="label completed">
                Sales
            </div>
            <div class="top completed">
               Awaiting Confirmation
            </div>
        </div>
        <div class="line completed"></div>
        <div class="step completed">
            <svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24">
                <path d="M20.285 2l-11.285 11.567-5.286-5.011-3.714 3.716 9 8.728 15-15.285z" />
            </svg>
            <div class="label completed">
               Accountant
            </div>
            <div class="top completed">
               Awaiting Review
            </div>
        </div>
        <div class="line next-step-in-progress">
        </div>
        <div class="step in-progress">
            <div class="preloader"></div>
            <div class="label loading">
               OP
            </div>
            <div class="top in-progress">
                Stock Check
            </div>
        </div>
        <div class="line prev-step-in-progress"></div>
        <div class="step">
            <div class="label">
               Sales Assistant
            </div>
            <div class="top">
                Preparing Shipping
            </div>
        </div>
        <div class="line"></div>
        <div class="step">
            <div class="label">
               Sales Assistant
            </div>
            <div class="top">
               Awaiting Stock Out
            </div>
        </div>
        <div class="line "></div>
        <div class="step">
            <div class="label">
              Warehouse
            </div>
            <div class="top">
              Stocked Out
            </div>
        </div>
        <div class="line "></div>
        <div class="step">
            <div class="label">
               Warehouse
            </div>
            <div class="top">
               Shipped
            </div>
        </div>
        
    </div>
</div>
<script type="text/javascript">
  const toggleSwitch = document.getElementById('toggle-switch');

toggleSwitch.onchange = e => {
  document.documentElement.classList.toggle('dark-mode');
};
</script>

CSS：

 <style>
:root {
  --background-modal-color: #fff;
  --body-color: #fff;
  --color-timeline-default: #D2D3D8;
  --color-step-completed: #5C6174;
  --color-checkmark-completed: #fff;
  --color-in-progress: #13CB8F;
  --color-label-default: var(--color-timeline-default);
  --color-label-completed: var(--color-step-completed);
  --color-label-loading: var(--color-in-progress);
  --color-icon-completed: var(--color-step-completed);
  --color-icon-default: var(--color-timeline-default);
}
:root.dark-mode {
  --color-checkmark-completed: #fff;
  --background-modal-color: #5C6174;
  --color-timeline-default: #9799A3;
  --color-checkmark-completed: var(--background-modal-color);
  --body-color: #fff;
  --color-step-completed: #fff;
}

* {
  box-sizing: border-box;
}

body {
  font-family: 'Muli', sans-serif;
  background: var(--body-color);
  padding: 0;
  margin: 0;
  display: flex;
  width: 100vw;
  height: 100vh;
  justify-content: center;
  align-items: center;
  position: relative;
}
body .toggle {
  transform: scale(0.8);
  position: absolute;
  bottom: 30px;
  display: flex;
  align-items: center;
  justify-content: space-around;
  max-width: 140px;
}
body .toggle span {
  margin: 0 0.5rem;
}
body .toggle input[type="checkbox"] {
  height: 0;
  width: 0;
  visibility: hidden;
}
body .toggle input[type="checkbox"]:checked + label {
  background: #13CB8F;
}
body .toggle input[type="checkbox"]:checked + label:after {
  left: calc(100% - 2px);
  transform: translateX(-100%);
}
body .toggle label {
  cursor: pointer;
  width: 75px;
  height: 34px;
  background: #D2D3D8;
  display: block;
  border-radius: 40px;
  position: relative;
}
body .toggle label:after {
  content: "";
  position: absolute;
  top: 2px;
  left: 2px;
  width: 30px;
  height: 30px;
  background: #fff;
  border-radius: 40px;
  transition: 0.3s;
}
body .main-container {
  display: flex;
  flex-direction: column;
  justify-content: center;
  transition: all 200ms ease;
  background: var(--background-modal-color);
  height: 220px;
  min-width: 420px;
  max-width: 100%;
  flex-grow: 1;
  border-radius: 5px;
  box-shadow: 0 2px 5px 0 rgba(0, 0, 0, 0.14);
}
body .main-container .steps-container {
  padding: 40px;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}
body .main-container .steps-container .step {
  z-index: 1;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 200ms ease;
  flex-grow: 0;
  height: 15px;
  width: 15px;
  border: 4px solid var(--color-timeline-default);
  border-radius: 50%;
}
body .main-container .steps-container .step .preloader, body .main-container .steps-container .step svg {
  display: none;
}
body .main-container .steps-container .step.completed {
  width: 18px;
  height: 18px;
  background: var(--color-step-completed);
  border: none;
}
body .main-container .steps-container .step.completed svg {
  transition: all 200ms ease;
  display: block;
  height: 10px;
  width: 10px;
  fill: var(--color-checkmark-completed);
}
body .main-container .steps-container .step.in-progress {
  width: 18px;
  height: 18px;
  background: var(--color-in-progress);
  border: none;
}
body .main-container .steps-container .step.in-progress .preloader {
  display: block;
  height: 10px;
  width: 10px;
  border: 2px solid #fff;
  border-radius: 50%;
  border-left-color: transparent;
  animation-name: spin;
  animation-duration: 2000ms;
  animation-iteration-count: infinite;
  animation-timing-function: linear;
}
body .main-container .steps-container .step .label {
  position: absolute;
  top: 30px;
  filter: none;
  z-index: 2000;
  color: var(--color-label-default);
  transition: all 200ms ease;
  font-weight: 700;
}
body .main-container .steps-container .step .label.completed {
  color: var(--color-label-completed);
}
body .main-container .steps-container .step .label.loading {
  color: var(--color-label-loading);
}
body .main-container .steps-container .step .top {
  font-size: 16px;
  position: absolute;
  top: -60px;
  color: var(--color-icon-default);
  transition: color 200ms ease;
}
body .main-container .steps-container .step .top.completed {
  color: var(--color-icon-completed);
}
body .main-container .steps-container .step .top.in-progress {
  color: var(--color-in-progress);
}
body .main-container .steps-container .line {
  transition: all 200ms ease;
  height: 2px;
  flex-grow: 1;
  max-width: 120px;
  background: var(--color-timeline-default);
}
body .main-container .steps-container .line.completed {
  background: var(--color-step-completed);
}
body .main-container .steps-container .line.next-step-uncomplete {
  background: linear-gradient(to right, var(--color-step-completed), var(--color-timeline-default));
}
body .main-container .steps-container .line.next-step-in-progress {
  background: linear-gradient(to right, var(--color-step-completed), var(--color-in-progress));
}
body .main-container .steps-container .line.prev-step-in-progress {
  background: linear-gradient(to right, var(--color-in-progress), var(--color-timeline-default));
}

@keyframes spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}
  </style>

试一下效果便知，上下都是文字当然也可以修改为图标。