/* 公告栏样式 */
.announcement-bar {
  background-color: #262e6f; /* 背景色，红色调 */
  color: #58e10e; /* 文本颜色，深红 */
  text-align: center;
  padding: 10px 0;
  font-size: 16px;
  font-weight: bold;
  position: fixed; /* 固定在页面底部 */
  bottom: 0; /* 固定在页面底部 */
  left: 0;
  width: 100%;
  z-index: 9999; /* 确保公告栏显示在其他内容上方 */
  //box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1); /* 轻微阴影效果，顶部阴影 */
}

/* 动态条 */
<style>
    @import url("https://fonts.googleapis.com/css?family=Lato:100");
html,
body {  width: 100%;  height: 100%;}
.flex-container {
  width: 100%;
  height: 100%;
  position: relative;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -ms-flex-wrap: wrap;
      flex-wrap: wrap;
  -webkit-box-pack: center;
      -ms-flex-pack: center;
          justify-content: center;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
}

body {  background-color: #262e6f;}/* 背景颜色 */
.unit {
  text-align: center;}
.unit p {/* equal love */
  margin-top: 100px;
  font-family: 'Lato', sans-serif;
  font-weight: 100;
  text-transform: uppercase;
  color: #fff;
} 
.heart {/* 动态条位置 */
  position: relative;
  font-size: 0;
  width: 138px;
}
[class*="heart-piece-"] {/* 动态条初始化 */
  position: absolute;
  top: -5px;
  width: 10px;
  height: 10px;
  border-radius: 5px;
}
.heart-piece-4 {/* 动态条4 动态时间 */
  -webkit-animation: piece-4 3.2s infinite;
          animation: piece-4 3.2s infinite;
}
.heart-piece-3,
.heart-piece-5 {/* 动态条3 5 动态时间 */
  -webkit-animation: piece-3 3.2s infinite;
          animation: piece-3 3.2s infinite;
}
.heart-piece-2,
.heart-piece-6 {/* 动态条2 6 动态时间 */
  -webkit-animation: piece-2 3.2s infinite;
          animation: piece-2 3.2s infinite;
}
.heart-piece-1,
.heart-piece-7 {/* 动态条1 7 动态时间 */
  -webkit-animation: piece-1 3.2s infinite;
          animation: piece-1 3.2s infinite;
}
.heart-piece-0,
.heart-piece-8 {/* 动态条0 8 动态时间 */
  -webkit-animation: piece-0 3.2s infinite;
          animation: piece-0 3.2s infinite;
}

/* 动态条 开始时间 */
.heart-piece-0 {
  left: 0px;
  -webkit-animation-delay: 0s;
          animation-delay: 0s;
  background-color: #ec2d73;
}
.heart-piece-1 {
  left: 16px;
  -webkit-animation-delay: 0.15s;
          animation-delay: 0.15s;
  background-color: #eb5324;
}
.heart-piece-2 {
  left: 32px;
  -webkit-animation-delay: 0.3s;
          animation-delay: 0.3s;
  background-color: #fdc800;
}
.heart-piece-3 {
  left: 48px;
  -webkit-animation-delay: 0.45s;
          animation-delay: 0.45s;
  background-color: #47b264;
}
.heart-piece-4 {
  left: 64px;
  -webkit-animation-delay: 0.6s;
          animation-delay: 0.6s;
  background-color: #1470bd;
}
.heart-piece-5 {
  left: 80px;
  -webkit-animation-delay: 0.75s;
          animation-delay: 0.75s;
  background-color: #76469a;
}
.heart-piece-6 {
  left: 96px;
  -webkit-animation-delay: 0.9s;
          animation-delay: 0.9s;
  background-color: #ec2d73;
}
.heart-piece-7 {
  left: 112px;
  -webkit-animation-delay: 1.05s;         
          animation-delay: 1.05s;
  background-color: #eb5324;
}
.heart-piece-8 {
  left: 128px;
  -webkit-animation-delay: 1.2s;
          animation-delay: 1.2s;
  background-color: #fdc800;
}

/* 动态条  特定的时间点 状态*/
@-webkit-keyframes piece-4 {
  0%, 10%, 90%, 100% {
    height: 10px;
    top: -5px;
  }
  45%, 55% {
    height: 94px;
    top: -23px;
  }
}
@keyframes piece-4 {
  0%, 10%, 90%, 100% {
    height: 10px;
    top: -5px;
  }
  45%, 55% {
    height: 94px;
    top: -23px;
  }
}
@-webkit-keyframes piece-3 {
  0%, 10%, 90%, 100% {
    height: 10px;
    top: -5px;
  }
  45%, 55% {
    height: 90px;
    top: -31px;
  }
}
@keyframes piece-3 {
  0%, 10%, 90%, 100% {
    height: 10px;
    top: -5px;
  }
  45%, 55% {
    height: 90px;
    top: -31px;
  }
}
@-webkit-keyframes piece-2 {
  0%, 10%, 90%, 100% {
    height: 10px;
    top: -5px;
  }
  45%, 55% {
    height: 80px;
    top: -37px;
  }
}
@keyframes piece-2 {
  0%, 10%, 90%, 100% {
    height: 10px;
    top: -5px;
  }
  45%, 55% {
    height: 80px;
    top: -37px;
  }
}
@-webkit-keyframes piece-1 {
  0%, 10%, 90%, 100% {
    height: 10px;
    top: -5px;
  }
  45%, 55% {
    height: 60px;
    top: -31px;
  }
}
@keyframes piece-1 {
  0%, 10%, 90%, 100% {
    height: 10px;
    top: -5px;
  }
  45%, 55% {
    height: 60px;
    top: -31px;
  }
}
@-webkit-keyframes piece-0 {
  0%, 10%, 90%, 100% {
    height: 10px;
    top: -5px;
  }
  45%, 55% {
    height: 30px;
    top: -15px;
  }
}
@keyframes piece-0 {
  0%, 10%, 90%, 100% {
    height: 10px;
    top: -5px;
  }
  45%, 55% {
    height: 30px;
    top: -15px;
  }
} 
  </style>