CSS 縱向時(shí)間軸是一種很酷的展示時(shí)間信息的方式。它可以在一個(gè)網(wǎng)頁上整齊地顯示時(shí)間軸上的事件詳情，以幫助用戶獲得更好的閱讀體驗(yàn)。

.timeline {
list-style: none;
padding: 20px;
position: relative;
margin: 20px 0;
}
.timeline:before {
top: 0;
bottom: 0;
position: absolute;
content: "";
width: 2px;
background-color: #ddd;
left: 50%;
margin-left: -1px;
}
.timeline >li {
margin-bottom: 50px;
position: relative;
height: 50px;
}
.timeline >li:before,
.timeline >li:after {
content: " ";
display: table;
}
.timeline >li:after {
clear: both;
}
.timeline >li:before,
.timeline >li:after {
content: " ";
display: table;
}
.timeline >li:after {
clear: both;
}
.timeline >li >.timeline-panel {
width: 46%;
float: left;
position: relative;
padding: 20px;
border: 1px solid #d4d4d4;
border-radius: 2px;
-webkit-box-shadow: 0 1px 6px rgba(0, 0, 0, 0.175);
box-shadow: 0 1px 6px rgba(0, 0, 0, 0.175);
}
.timeline >li.timeline-inverted >.timeline-panel {
float: right;
}
.timeline >li.timeline-inverted >.timeline-panel:before {
border-left-width: 0;
border-right-width: 15px;
left: -15px;
right: auto;
}
.timeline >li.timeline-inverted >.timeline-panel:after {
border-left-width: 0;
border-right-width: 14px;
left: -14px;
right: auto;
}
.timeline-badge {
color: #fff;
width: 50px;
height: 50px;
line-height: 50px;
font-size: 1.4em;
text-align: center;
position: absolute;
top: 16px;
left: 50%;
margin-left: -25px;
background-color: #999999;
z-index: 100;
border-top-right-radius: 50%;
border-top-left-radius: 50%;
border-bottom-right-radius: 50%;
border-bottom-left-radius: 50%;
}
.timeline-badge.primary {
background-color: #2e6da4 !important;
}
.timeline-badge.success {
background-color: #3f903f !important;
}
.timeline-badge.warning {
background-color: #f0ad4e !important;
}
.timeline-badge.danger {
background-color: #d9534f !important;
}
.timeline-badge.info {
background-color: #5bc0de !important;
}
.timeline-title {
margin-top: 0;
color: inherit;
}
.timeline-body >p,
.timeline-body >ul {
margin-bottom: 0;
}
.timeline-body >p + p {
margin-top: 5px;
}

上面的代碼塊是 CSS 縱向時(shí)間軸的核心代碼。其中，.timeline和li元素控制了整個(gè)時(shí)間軸的樣式。.timeline-badge控制了時(shí)間軸上的不同事件點(diǎn)的樣式。

我們可以根據(jù)自己的需求對這些樣式進(jìn)行調(diào)整，以滿足不同時(shí)間軸的需求。讓我們嘗試使用這些樣式來創(chuàng)建一個(gè)美麗的 CSS 縱向時(shí)間軸吧！