JSFiddle - React, Tailwind, and code Playground

HTML

<div class="holder">
    <div>DIVISION</div>
    <div>DIVISION</div>
    <div>DIVISION</div>
    <div>DIVISION</div>
    <div>DIVISION</div>
    <div>DIVISION</div>
    <div>DIVISION</div>
</div>
<br />
<input type="button" onclick="test();" value="CHECK" />

CSS

.holder{
    max-height:40px;
    background:red;
    padding:10px;
    overflow:hidden;
}
.holder div{
    background:blue;
    margin:3px 0;
}

JavaScript

function test(){
    var hldr=$('.holder'); //get element

    alert('before set: ' + $('.holder').css('maxHeight')); //alert before set

    /* SET */
    hldr.css('height','auto');

    alert('after set: ' + $('.holder').css('maxHeight'));//alert after set
}