JSFiddle - React, Tailwind, and code Playground

HTML

<div id="anti-shadow-div">
    <div id="wrapper">
        <div id="ga">box1</div>
        <div id="line"></div>
        <div id="gr">box2e</div>
    </div>
</div>

CSS

#ga { 
height: 100px;
padding: 20px;
    background-color: white; 

}
#gr { 
height: 100px;

padding: 20px;
background-color: #BFE5FE; 

}
#line{
    background-color: #6FB2E6;
    height: 4px;
}
#wrapper{
    margin:0 20px;
    width: 200px;
    box-shadow: 0px 0px 20px rgba(0, 0, 0, 0.4); 
}

#anti-shadow-div{
    display:table;
    overflow:hidden;
}