带曲线边缘的剪辑路径多边形

Question

Goal is to achieve this.单击链接。

我到了这里。如何弯曲底部边缘？任何帮助表示赞赏。

I got till here.

 
    div class="curved-message"/> 

.curved-message{ 
    background: 'lightblue'; 
    clip-path: polygon(0% -20%, 100% 0%, 100% 90%, 56% 90%, 52% 100%, 48% 90%, 0% 90%); 
    border-radius: 25px; 
    margin-top: 250px; 
    height: 345px; 
    border-top: 4px solid white; 
    border-left: 4px solid white; 
    border-right: 4px solid white; 
    max-width:750px; 
} 

Answer 1

也许另一种方式来做到这一点？

.curved-message { 
 
    position: relative; 
 
    width: 300px; 
 
    height: 100px; 
 
    background: lightblue; 
 
    border-radius: 15px; 
 
} 
 
.curved-message:before { 
 
    content: ""; 
 
    width: 30px; 
 
    height: 30px; 
 
    background: lightblue; 
 
    position: absolute; 
 
    bottom: -15px; 
 
    left: 50%; 
 
    -webkit-transform: translateX(-50%) rotate(45deg); 
 
    transform: translateX(-50%) rotate(45deg); 
 
}

<div class="curved-message"> 
 

 
</div>