JSFiddle - React, Tailwind, and code Playground

HTML

<div class="container">
    <div class="checkbox"></div>
    <div class="value">12345</div>
    <div class='expander'>
       <div class="name">Some text</div>
    </div>
</div>
<div class="container">
    <div class="checkbox"></div>
    <div class="value">123456789</div>
    <div class='expander'>
       <div class="name">Some long text that won't overlap</div>
    </div>
</div>
<div class="container">
    <div class="checkbox"></div>
    <div class="value">12354354354345</div>
    <div class='expander'>
       <div class="name">Some very long text that should elipse text</div>
    </div>
</div>

CSS

.container {
    display: block;
    width: 300px;
    height: 30px;
    background-color: #B7B7B7;
    overflow: hidden;
}

.checkbox {
    display: inline-block;
    margin-top: 5px;
    width: 15px;
    height: 15px;
    background-color: green;
    float: left;
}

.expander {
    background-color: orange;
    overflow: hidden;
    display: block;
}

.name {
    display: inline-block;
    white-space: nowrap;
    text-overflow: ellipsis;
    width: 100%;
    overflow: hidden;
}

.value {
    display: inline-block;
    background-color: LightCyan;
    float: right;
}