JSFiddle - React, Tailwind, and code Playground

HTML

<div class="search-bin">
  <div class="search-bin-top">
    <div class="form-bolded">bin:</div>
      <input data-timestamp="" type="text" size="10" class="which-menu-item-bin-number" />
  </div>
  <div id="bin_results"></div>
</div>


<div class="search-bin">
  <div class="search-bin-top">
    <div class="form-bolded">bin:</div>
      <input data-timestamp="" type="text" size="10" class="which-menu-item-bin-number" />
  </div>
  <div id="bin_results">
      <div>ab12</div><div>abc12310</div><div>abc12320</div><div>abc12360</div><div>abc12390</div>
      
  </div>
</div>

CSS

.search-bin {
border: 2px solid blue;
width: 210px;
}

.which-menu-item-bin-number{
  margin-top: 0px;
  width: 50px;
}

#bin_results{
  border: 1px solid red;
  width: 50px;
  margin-left: 10px;
  display: inline-block;
}


.search-bin-top{
  border: 1px solid yellow;
  width: 110px;
  display: inline-block;
  vertical-align: text-top;

}