SOURCE

<div id="phone">
 <div id="note">
   <div id="text">
     <p> 生日提醒</p>
   </div>
   <div id="names">
     <div><p>李四</p></div>
     <div><p>李四</p></div>
     <div><p>李四</p></div>
     <div><p>李四</p></div>
     <div><p>李四</p></div>
     <div><p>李四</p></div>
   </div>
  </div>
</div>

#phone{
  border:2px solid red;
  width:375px;
  height:667px;
}
#names{
  display:flex;
    justify-content:space-around;
  font-size:10px;
}
#text{
  margin-left:15px;
   margin-right:15px;
  border-width:0 0 2px 0;
  border-style:solid;
  border-color:grey;
  height:30px;
  font-size:20px
}