<div class="container">
<p class="column">1</p>
<p class="column">2</p>
<p class="column">3</p>
</div>
.container {
display: grid;
grid-template-columns: minmax(min-content, max-content) 1fr 1fr;
gap: 10px;
}
/* etc: */
body {
margin: 1.5em;
font-size: 130%;
}
.column {
background: #ccc;
border: 1px solid #666;
padding: 1em;
margin-top: 0;
margin-bottom: 0;
font-family: monospace;
text-align: center;
/* "border-collapse" hack */
margin-left: -1px;
margin-top: -1px;
}
.column:first-child {
background: #b3e888;
border: 1px solid darkgreen;
}
.container {
border: 5px solid black;
padding: 1em;
margin-bottom: 2em;
}
This Pen doesn't use any external CSS resources.
This Pen doesn't use any external JavaScript resources.