HTML+CSS实现时间轴（移动端）

html:

<section id="cd-timeline" class="cd-container">
	<div class="cd-timeline-block">
		<div class="cd-timeline-img cd-picture"></div>
          <p class="cd-date">01:06</p>
		<div class="cd-timeline-content">
			<h2>HTML5+CSS3实现的响应式垂直时间轴faffHTML5+CSS3实现的响应式垂直时间轴</h2>
		</div>
	</div>
	<div class="cd-timeline-block">
		<div class="cd-timeline-img cd-movie"></div>
       <p class="cd-date">12:25</p>
		<div class="cd-timeline-content">
			<h2>jQuery+PHP动态数字展示效果</h2>
		</div>
	</div>
	<div class="cd-timeline-block">
		<div class="cd-timeline-img cd-picture"></div>
       <p class="cd-date">12:20</span>
 		<div class="cd-timeline-content">
			<h2>PHP操作Session和Cookie</h2>
		</div>
	</div>
	<div class="cd-timeline-block">
		<div class="cd-timeline-img cd-movie"></div>
       <p class="cd-date">12:14</p>
		<div class="cd-timeline-content">
			<h2>jQuery数字加减插件</h2>
		</div>
	</div>
	<div class="cd-timeline-block">
		<div class="cd-timeline-img cd-movie"></div>
       <p class="cd-date">12:05</p>
		<div class="cd-timeline-content">
			<h2>收集整理的非常有用的PHP函数</h2>
		</div>
	</div>
</section>

css:

html * {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

*, *:after, *:before {
  -webkit-box-sizing: border-box;
  -moz-box-sizing: border-box;
  box-sizing: border-box;
}

body {
  font-size: 100%;
  color: #7f8c97;
  background-color: #e9f0f5;
}



img {
  max-width: 100%;
}

/* -------------------------------- 

Modules - reusable parts of our design

-------------------------------- */
.cd-container {
  /* this class is used to give a max-width to the element it is applied to, and center it horizontally when it reaches that max-width */
  width: 94%;
  max-width: 1170px;
  margin: 0 auto;
}
.cd-container::after {
  /* clearfix */
  content: '';
  display: table;
  clear: both;
}

/* -------------------------------- 

Main components 

-------------------------------- */

#cd-timeline {
  position: relative;
  padding: 2em 0;
  margin-top: 2em;
  margin-bottom: 2em;
}
#cd-timeline::before {
  /* this is the vertical line */
  content: '';
  position: absolute;
  top: 0;
  left: 55px;
  height: 100%;
  width: 1px;
  background: #d7e4ed;
}
@media only screen and (min-width: 1170px) {
  #cd-timeline {
    margin-top: 3em;
    margin-bottom: 3em;
  }
  #cd-timeline::before {
    left: 50%;
    margin-left: -2px;
  }
}

.cd-timeline-block {
  position: relative;
  margin: 2em 0;
	display: flex;
  align-items: center;
}
.cd-timeline-block:after {
  content: "";
  display: table;
  clear: both;
}
.cd-timeline-block:first-child {
  margin-top: 0;
}
.cd-timeline-block:last-child {
  margin-bottom: 0;
}
@media only screen and (min-width: 1170px) {
  .cd-timeline-block {
    margin: 4em 0;
  }
  .cd-timeline-block:first-child {
    margin-top: 0;
  }
  .cd-timeline-block:last-child {
    margin-bottom: 0;
  }
}

.cd-timeline-img {
  position: absolute;
  top: 50%;
  left: 50px;
  width: 10px;
  height: 10px;
	background: #fff;
  border-radius: 50%;
	transform: translateY(-50%);
	box-shadow: 0 0 0 1px white;
  /* box-shadow: 0 0 0 4px white, inset 0 2px 0 rgba(0, 0, 0, 0.08), 0 3px 0 4px rgba(0, 0, 0, 0.05); */
}
.cd-timeline-img img {
  display: block;
  width: 24px;
  height: 24px;
  position: relative;
  left: 50%;
  top: 50%;
  margin-left: -12px;
  margin-top: -12px;
}
.cd-timeline-img.cd-picture {
  /* background: #75ce66; */
}
.cd-timeline-img.cd-movie {
  /* background: #c03b44; */
}
.cd-timeline-img.cd-location {
  background: #f0ca45;
}
@media only screen and (min-width: 1170px) {
  .cd-timeline-img {
    width: 60px;
    height: 60px;
    left: 50%;
    margin-left: -30px;
    /* Force Hardware Acceleration in WebKit */
    -webkit-transform: translateZ(0);
    -webkit-backface-visibility: hidden;
  }
  .cssanimations .cd-timeline-img.is-hidden {
    visibility: hidden;
  }
  .cssanimations .cd-timeline-img.bounce-in {
    visibility: visible;
    -webkit-animation: cd-bounce-1 0.6s;
    -moz-animation: cd-bounce-1 0.6s;
    animation: cd-bounce-1 0.6s;
  }
}

.cd-timeline-content {
  /* position: relative; */
	    /* float: left; */
			width: 77%;
  margin-left: 45px;
  background: white;
  border-radius: 0.25em;
  /* padding: 1em; */
	padding: 10px;
  box-shadow: 0 3px 0 #d7e4ed;
}
.cd-timeline-content:after {
  content: "";
  display: table;
  clear: both;
}
.cd-timeline-content h2 {
  color: #303e49;
	font-size: 12px;
}
/* .cd-timeline-content p, .cd-timeline-content .cd-read-more, .cd-timeline-content */
 .cd-date {
	 /* float: left; */
  font-size: 13px;
  font-size: 0.8125rem;
}
/* .cd-timeline-content .cd-read-more, .cd-timeline-content */
/* .cd-date {
  display: inline-block;
} */
.cd-timeline-content p {
  margin: 1em 0;
  line-height: 1.6;
}
.cd-timeline-content .cd-read-more {
  float: right;
  padding: .8em 1em;
  background: #acb7c0;
  color: white;
  border-radius: 0.25em;
}
.no-touch .cd-timeline-content .cd-read-more:hover {
  background-color: #bac4cb;  
}
a.cd-read-more:hover{text-decoration:none; background-color: #424242;  }
.cd-timeline-content .cd-date {
  float: left;
  padding: .8em 0;
  opacity: .7;
}
.cd-timeline-content::before {
	display: none;
  content: '';
  position: absolute;
  top: 16px;
  right: 100%;
  height: 0;
  width: 0;
  border: 7px solid transparent;
  border-right: 7px solid white;
}
@media only screen and (min-width: 768px) {
  .cd-timeline-content h2 {
    font-size: 20px;
    font-size: 1.25rem;
  }
  .cd-timeline-content p {
    font-size: 16px;
    font-size: 1rem;
  }
  .cd-timeline-content .cd-read-more, .cd-timeline-content .cd-date {
    font-size: 14px;
    font-size: 0.875rem;
  }
}
@media only screen and (min-width: 1170px) {
  .cd-timeline-content {
    margin-left: 0;
    padding: 1.6em;
    width: 45%;
  }
  .cd-timeline-content::before {
    top: 24px;
    left: 100%;
    border-color: transparent;
    border-left-color: white;
  }
  .cd-timeline-content .cd-read-more {
    float: left;
  }
  .cd-timeline-content .cd-date {
    position: absolute;
    width: 100%;
    left: 122%;
    top: 6px;
    font-size: 16px;
    font-size: 1rem;
  }
  .cd-timeline-block:nth-child(even) .cd-timeline-content {
    float: right;
  }
  .cd-timeline-block:nth-child(even) .cd-timeline-content::before {
    top: 24px;
    left: auto;
    right: 100%;
    border-color: transparent;
    border-right-color: white;
  }
  .cd-timeline-block:nth-child(even) .cd-timeline-content .cd-read-more {
    float: right;
  }
  .cd-timeline-block:nth-child(even) .cd-timeline-content .cd-date {
    left: auto;
    right: 122%;
    text-align: right;
  }
  .cssanimations .cd-timeline-content.is-hidden {
    visibility: hidden;
  }
  .cssanimations .cd-timeline-content.bounce-in {
    visibility: visible;
    -webkit-animation: cd-bounce-2 0.6s;
    -moz-animation: cd-bounce-2 0.6s;
    animation: cd-bounce-2 0.6s;
  }
}

@media only screen and (min-width: 1170px) {
  /* inverse bounce effect on even content blocks */
  .cssanimations .cd-timeline-block:nth-child(even) .cd-timeline-content.bounce-in {
    -webkit-animation: cd-bounce-2-inverse 0.6s;
    -moz-animation: cd-bounce-2-inverse 0.6s;
    animation: cd-bounce-2-inverse 0.6s;
  }
}