JSFiddle - React, Tailwind, and code Playground

HTML

<div class="wrap">
    <div class="box-wrapper">
        <div class="box1">Box1 with less height.</div>
        <div class="box3">Box3 with whatever height.</div>
    </div>
    <div class="box2">Box2 with more height.</div>
        
</div>

CSS

.wrap{

    width:410px;
    border:1px solid red;
    overflow:hidden;
}

.box-wrapper {
    width:200px;
    float:left;
}

.box1{
    width:200px;
    height:50px;
    float:left;
    border:1px solid green;
}

.box2{
    width:200px;
    height:150px;
    float:left;
    border:1px solid blue;
}

.box3{
    width:200px;
    height:250px;
    float:left;
    border:1px solid blue;
}