<ul> <li v-for="(item,i) in list" :class="[num==i?'active':'']" @click="tab(i)">{{item}}</li> </ul>
css
.cssNav { margin: 100px auto; background-color: #dedede; width:420px; } .cssNav li{ padding:0 20px; line-height: 40px; background-color: #50abe4; display: inline-block; color:#fff; position: relative; margin-right: 4px; } .cssNav li:after{ content:""; display: block; border-top:20px solid transparent; border-bottom:20px solid transparent; border-left:20px solid #50abe4; position: absolute; right:-20px; top:0; z-index: 10; } .cssNav li:before{ content:""; display: block; border-top:20px solid transparent; border-bottom:20px solid transparent; border-left:20px solid #fff; position: absolute; left:0px; top:0; } .cssNav li:first-child{ border-radius: 4px 0 0 4px; padding-left:25px; } .cssNav li:last-child,.cssNavEnd{ border-radius: 0 4px 4px 0; padding-right: 25px; } .cssNav li:first-child:before{ display: none; } .cssNav li:last-child:after,.cssNavEnd:after{ display: none; } .cssNav li.active { background-color: #ef72b6; } .cssNav li.active:after { border-left-color: #ef72b6; }
js
// 需要引入vue.js new Vue({ el: '.cssNav', data: { num:0, list:['首页','测试文字','新闻也','地址页'] }, methods: { tab:function(i){ this.num = i; } } })
说明：如果不用vue.js来写，只需要把样式复制就可以了