简约时尚的纯CSS3 Tabs选项卡特效

这是一款使用纯 CSS3 制作的 Tabs 选项卡特效。该 Tabs 选项卡简约时尚，各个选项卡之间切换时使用了下划线跟随动画，整体效果非常不错。

HTML 结构
整个 Tabs 选项卡的 HTML 结构分为几个部分：使用<input>元素和一个无序列表来制作导航。

<input type="radio" id="tab1" name="tab-control" checked>
<input type="radio" id="tab2" name="tab-control">
<input type="radio" id="tab3" name="tab-control">  
<input type="radio" id="tab4" name="tab-control">
<ul>
  <li title="tab 1"><label for="tab1" role="button"><span>Tab 1</span></label></li>
  <li title="tab 2"><label for="tab2" role="button"><span>Tab 2</span></label></li>
  <li title="tab 3"><label for="tab3" role="button"><span>Tab 3</span></label></li>
  <li title="tab 4"><label for="tab4" role="button"><span>Tab 4</span></label></li>
</ul>

各个选项卡的内容包含在一个<div>元素中。

<div class="content">
  <section>
    <h2>Tab 1 content</h2>
  </section>
  <section>
    <h2>Tab 2 content</h2>
  </section>
  <section>
    <h2>Tab 3 content</h2>
  </section>
  <section>
    <h2>Tab 4 content</h2>
  </section>
</div>

用于制作下划线动画的线条使用一个<div>元素来制作。

<div class="slider"><div class="indicator"></div></div>

CSS 样式
该 Tabs 选项卡的主要 CSS 样式如下：

.tabs {
  left: 50%;
  -webkit-transform: translateX(-50%);
  transform: translateX(-50%);
  position: relative;
  background: white;
  padding: 50px;
  padding-bottom: 80px;
  width: 70%;
  height: 250px;
  box-shadow: 0 14px 28px rgba(0, 0, 0, 0.25), 0 10px 10px rgba(0, 0, 0, 0.22);
  border-radius: 5px;
  min-width: 240px;
}
 
.tabs input[name="tab-control"] { display: none; }
 
.tabs .content section h2, .tabs ul li label {
  font-weight: bold;
  font-size: 18px;
  color: #428BFF;
}
 
.tabs ul {
  list-style-type: none;
  padding-left: 0;
  display: -webkit-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-orient: horizontal;
  -webkit-box-direction: normal;
  -webkit-flex-direction: row;
  -ms-flex-direction: row;
  flex-direction: row;
  margin-bottom: 10px;
  -webkit-box-pack: justify;
  -webkit-justify-content: space-between;
  -ms-flex-pack: justify;
  justify-content: space-between;
  -webkit-box-align: end;
  -webkit-align-items: flex-end;
  -ms-flex-align: end;
  align-items: flex-end;
  -webkit-flex-wrap: wrap;
  -ms-flex-wrap: wrap;
  flex-wrap: wrap;
}
 
.tabs ul li {
  box-sizing: border-box;
  -webkit-box-flex: 1;
  -webkit-flex: 1;
  -ms-flex: 1;
  flex: 1;
  width: 25%;
  padding: 0 10px;
  text-align: center;
}
 
.tabs ul li label {
  -webkit-transition: all 0.3s ease-in-out;
  transition: all 0.3s ease-in-out;
  color: #929daf;
  padding: 5px auto;
  overflow: hidden;
  text-overflow: ellipsis;
  display: block;
  cursor: pointer;
  -webkit-transition: all 0.2s ease-in-out;
  transition: all 0.2s ease-in-out;
  white-space: nowrap;
  -webkit-touch-callout: none;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
}
 
.tabs ul li label br { display: none; }
 
.tabs ul li label svg {
  fill: #929daf;
  height: 1.2em;
  vertical-align: bottom;
  margin-right: 0.2em;
  -webkit-transition: all 0.2s ease-in-out;
  transition: all 0.2s ease-in-out;
}
 
.tabs ul li label:hover, .tabs ul li label:focus, .tabs ul li label:active {
  outline: 0;
  color: #bec5cf;
}
 
.tabs ul li label:hover svg, .tabs ul li label:focus svg, .tabs ul li label:active svg { fill: #bec5cf; }
 
.tabs .slider {
  position: relative;
  width: 25%;
  -webkit-transition: all 0.33s cubic-bezier(0.38, 0.8, 0.32, 1.07);
  transition: all 0.33s cubic-bezier(0.38, 0.8, 0.32, 1.07);
}
 
.tabs .slider .indicator {
  position: relative;
  width: 50px;
  max-width: 100%;
  margin: 0 auto;
  height: 4px;
  background: #428BFF;
  border-radius: 1px;
}
 
.tabs .content { margin-top: 30px; }
 
.tabs .content section {
  display: none;
  -webkit-animation-name: content;
  animation-name: content;
  -webkit-animation-direction: normal;
  animation-direction: normal;
  -webkit-animation-duration: 0.3s;
  animation-duration: 0.3s;
  -webkit-animation-timing-function: ease-in-out;
  animation-timing-function: ease-in-out;
  -webkit-animation-iteration-count: 1;
  animation-iteration-count: 1;
  line-height: 1.4;
}
 
.tabs .content section h2 {
  color: #428BFF;
  display: none;
}
 
.tabs .content section h2::after {
  content: "";
  position: relative;
  display: block;
  width: 30px;
  height: 3px;
  background: #428BFF;
  margin-top: 5px;
  left: 1px;
}
 
.tabs input[name="tab-control"]:nth-of-type(1):checked ~ ul > li:nth-child(1) > label {
  cursor: default;
  color: #428BFF;
}
 
.tabs input[name="tab-control"]:nth-of-type(1):checked ~ ul > li:nth-child(1) > label svg { fill: #428BFF; }
@media (max-width: 600px) {
 
.tabs input[name="tab-control"]:nth-of-type(1):checked ~ ul > li:nth-child(1) > label { background: rgba(0, 0, 0, 0.08); }
}
 
.tabs input[name="tab-control"]:nth-of-type(1):checked ~ .slider {
  -webkit-transform: translateX(0%);
  transform: translateX(0%);
}
 
.tabs input[name="tab-control"]:nth-of-type(1):checked ~ .content > section:nth-child(1) { display: block; }
 
.tabs input[name="tab-control"]:nth-of-type(2):checked ~ ul > li:nth-child(2) > label {
  cursor: default;
  color: #428BFF;
}
 
.tabs input[name="tab-control"]:nth-of-type(2):checked ~ ul > li:nth-child(2) > label svg { fill: #428BFF; }
@media (max-width: 600px) {
 
.tabs input[name="tab-control"]:nth-of-type(2):checked ~ ul > li:nth-child(2) > label { background: rgba(0, 0, 0, 0.08); }
}
 
.tabs input[name="tab-control"]:nth-of-type(2):checked ~ .slider {
  -webkit-transform: translateX(100%);
  transform: translateX(100%);
}
 
.tabs input[name="tab-control"]:nth-of-type(2):checked ~ .content > section:nth-child(2) { display: block; }
 
.tabs input[name="tab-control"]:nth-of-type(3):checked ~ ul > li:nth-child(3) > label {
  cursor: default;
  color: #428BFF;
}
 
.tabs input[name="tab-control"]:nth-of-type(3):checked ~ ul > li:nth-child(3) > label svg { fill: #428BFF; }
@media (max-width: 600px) {
 
.tabs input[name="tab-control"]:nth-of-type(3):checked ~ ul > li:nth-child(3) > label { background: rgba(0, 0, 0, 0.08); }
}
 
.tabs input[name="tab-control"]:nth-of-type(3):checked ~ .slider {
  -webkit-transform: translateX(200%);
  transform: translateX(200%);
}
 
.tabs input[name="tab-control"]:nth-of-type(3):checked ~ .content > section:nth-child(3) { display: block; }
 
.tabs input[name="tab-control"]:nth-of-type(4):checked ~ ul > li:nth-child(4) > label {
  cursor: default;
  color: #428BFF;
}
 
.tabs input[name="tab-control"]:nth-of-type(4):checked ~ ul > li:nth-child(4) > label svg { fill: #428BFF; }
@media (max-width: 600px) {
 
.tabs input[name="tab-control"]:nth-of-type(4):checked ~ ul > li:nth-child(4) > label { background: rgba(0, 0, 0, 0.08); }
}
 
.tabs input[name="tab-control"]:nth-of-type(4):checked ~ .slider {
  -webkit-transform: translateX(300%);
  transform: translateX(300%);
}
 
.tabs input[name="tab-control"]:nth-of-type(4):checked ~ .content > section:nth-child(4) { display: block; }
@-webkit-keyframes 
content {  from {
 opacity: 0;
 -webkit-transform: translateY(5%);
 transform: translateY(5%);
}
 
to {
  opacity: 1;
  -webkit-transform: translateY(0%);
  transform: translateY(0%);
}
}
@keyframes 
content {  from {
 opacity: 0;
 -webkit-transform: translateY(5%);
 transform: translateY(5%);
}
 
to {
  opacity: 1;
  -webkit-transform: translateY(0%);
  transform: translateY(0%);
}
}
@media (max-width: 1000px) {
 
.tabs ul li label { white-space: initial; }
 
.tabs ul li label br { display: initial; }
 
.tabs ul li label svg { height: 1.5em; }
}
@media (max-width: 600px) {
 
.tabs ul li label {
  padding: 5px;
  border-radius: 5px;
}
 
.tabs ul li label span { display: none; }
 
.tabs .slider { display: none; }
 
.tabs .content { margin-top: 20px; }
 
.tabs .content section h2 { display: block; }
}