css实现下箭头

 

 

css实现下箭头

.top {
    width: 0;   
    height: 0;  
    border-left: 10px solid transparent;
    border-right: 10px solid transparent;
    border-bottom: 10px solid #217AFF;
}

 

<div class="top"></div>

 

转载于:https://www.cnblogs.com/cap-rq/p/10097426.html