如何修改H5中的audio样式

HTML

            
            

                
我要吃肉肉
                
何曼婷 - 我要吃肉肉
            
            
            

                
            
        

CSS

.btn-audio{
            width: 100%;
            height: 5.2rem;
            border: 1px solid #ebebeb;
            background-color: #fdfdfd;
            margin-bottom: 1rem;
            margin-top: 1rem;
            position: relative;
        }
        .mp3Box{
            width: 2.8rem;
            height: 2.8rem;
            position: absolute;
            top: 1.2rem;
            left: 1.2rem;
            background:url("image/close.png") no-repeat center bottom;
            background-size:cover;
            z-index: 100;
        }

JS

修改前：

修改后：