div+css实现自适应响应式带动画的时间轴大事记效果代码-html代码-BFW代码库

代码语言：html

所属分类：响应式

代码描述：div+css实现自适应响应式带动画的时间轴大事记效果代码

下面为部分代码预览，完整代码请点击下载或在bfwstudio webide中打开

<!DOCTYPE html>
<html lang="en" >
<head>
  <meta charset="UTF-8">
<style>
    @import url("https://fonts.googleapis.com/css2?family=Nunito+Sans:ital,opsz,wght@0,6..12,200..1000;1,6..12,200..1000&display=swap");

/* Global styles */
* {
  padding: 0;
  margin: 0;
  box-sizing: border-box;
}

/* Body styling */
body {
  background: #212529;
  height: 100vh;
  display: grid;
  place-items: center;
  font-family: "Nunito Sans", sans-serif;
}

/* Timeline container styling */
.timeline-container {
  display: flex;
  gap: 33.5px;
  width: 100%;
  height: 134px;
  justify-content: center;
  font-weight: 900;
  font-size: 67px;
}

/* Individual timeline point styling */
.timeline-point {
  transition-duration: 0.5s;
  border-radius: 50%;
  background: linear-gradient(145deg, #1e2125, #23282c);
  box-shadow: 13.4px 13.4px 40.2px #1c1f23, -13.4px -13.4px 40.2px #262b2f;
  display: grid;
  place-items: center;
  width: 134px;
  position: relative;
  color: var(--color);
}

.timeline-point::before {
  content: "";
  width: 200px;
  height: 200px;
  z-index: -1;
  border-radius: 50%;
  position: absolute;
  background: conic-gradient(
    var(--color) var(--angle),
    transparent 0deg 360deg
  );
  -webkit-animation: rotateBorder 1s linear var(--delay) forwards;
          animation: rotateBorder 1s linear var(--delay) forwards;
}

.timeline-point:nth-child(odd)::before {
  transform: rotate(-90deg);
}

.timeline-point:nth-child(even)::before {
  transform: rotate(90deg) scaleY(-1);
}

/* Custom property for angle */
@property --angle {
  syntax: "<angle>";
  initial-value: 0deg;
  inherits: false;
}

/* Common styling for timeline points */
.timeline-point:nth-child(1) {
  --color: #c1121f;
  --delay: 0s;
}

.timeline-point:nth-child(2) {
  --color: #ffc300;
  --delay: 1s;
}

.timeline-point:nth-child(3) {
  --color: #2ec4b6;
  --delay: 2s;
}

.timeline-point:nth-child(4) {
  --color: #6536ff;
  --delay: 3s;
}

.timeline-point:nth-child(5) {
  --color: #3a86ff;
  --delay: 4s;
}

/* Popup styling */
.popup {
  width: 321.6px;
  height: auto;
  max-height: 0;
  background-color: var(--color);
  display: grid;
  grid-template-columns: 16% 84%;
  position: absolute;
  color: white;
  border-radius: 30px;
  box-shadow: 6.7px 6.7px 21.4px #17191d, -6.7px -6.7px 21.4px #212529;

  transform-origin: bottom bottom;
  -webkit-animation: expandPopup 0.5s linear calc(var(--delay) + 0.5s) forwards;
          animation: expandPopup 0.5s linear calc(var(--delay) + 0.5s) forwards;
}

.timeline-point:nth-child(odd) .popup {
  bottom: 221.1px;
}

.timeline-point:nth-child(even) .popup {
  top: 221.1px;
}

/* Popup number styling */
.popup-number {
  grid-row: span 2;
  display: grid;
  font-size: 2rem;
  font-weight: bold;
  place-items: center;
  cursor: auto;
  -webkit-animation: fadeIn 0.5s linear calc(var(--delay) + 0.7s) forwards;
          animation: fadeIn 0.5s linear calc(var(--delay) + 0.7s) forwards;
  opacity: 0;
  height: 100%;
}

/* Popup title styling */
.popup-title {
  color: var(--color);
  padding-bottom: 6.7px;
  font-size: 20.1px;
  font-weight: 900;
}

/* Popup details styling */
.popup-details {
  padding: 20.1px;
  background-color: #1c1f23;
  border-radius: 30px;
  opacity: 0;
  font-weight: 500;
  -webkit-user-select: none;
     -moz-user-select: none;
      -ms-user-select: none;
          user-select: none;
  cursor: auto;
  overflow: hidden;
  font-size: 0.8rem;
  text-align: justify;
  background: linear-gradient(145deg, #16181b, #22262b);
  margin: 3.35px;
  -webkit-animation: fadeIn 0.5s linear calc(var(--delay) + 0.7s) forwards;
          animation: fadeIn 0.5s linear calc(var(--delay) + 0.7s) forwards;
}

.popup::before {
  content: "";
  width: 6.7px;
  height: 0;
  border-radius: 20px;
  background-color: var(--color);
  position: absolute;
  left: 50%;
  top: -41.9px;
  display: flex;
  -webkit-animation: drawLine 0.5s linear var(--delay) forwards;
          animation: drawLine 0.5s linear var(--delay) forwards;
}

.timeline-point:nth-child(odd) .popup:before {
  top: calc(100% + 47px);
  transform: rotateX(180deg);
  transform-origin: top;
}

/* Hover effect for timeline points */
.timeline-point:hover {
  background: linear-gradient(145deg, var(--color), #1e2125);
  color: white;
}

/* Animation for border rotation */
@-webkit-keyframes rotateBorder {
  from {
    --angle: 0deg;
  }

  to {
    --angle: 180deg;
  }
}
@keyframes rotateBorder {
  from {
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