Css grid without subgrid [duplicate] - css

Question

I have the following table design, laid out with CSS Grid (see first snippet).
Is it possible to make all columns of the same type/class (e.g. .Table_col_day) as wide as the column of that type/class with the widest content, with CSS/without JS? The solution doesn’t have to be CSS Grid based.
See the second code snippet for a quick JS-based solution, to illustrate what I'd like to do.
.Table__row {
background-color: plum;
display: grid;
grid-template-columns: 0.5fr 0.5fr 1fr;
}
.Table__row:nth-of-type(even) {
background-color: lime;
}
<div class="Table">
<div class="Table__row">
<div class="Table__day">Mon</div>
<div class="Table__time">10am</div>
<div class="Table__title">Some event</div>
</div>
<div class="Table__row">
<div class="Table__day">Tue</div>
<div class="Table__time">12:30pm</div>
<div class="Table__title">Another event</div>
</div>
<div class="Table__row">
<div class="Table__day">Wed</div>
<div class="Table__time">9:00am</div>
<div class="Table__title">A different event</div>
</div>
</div>
Javascript-based solution (determine widest column content, then manually set grid column styles of row element)
function resizeColumns(SELECTOR) {
const colElements = document.querySelectorAll(SELECTOR);
//////
const widths = [...colElements].map(el => el.querySelector('span').offsetWidth);
const width_max = Math.max(...widths);
//////
for(let col of colElements) {
col.parentNode.style.gridTemplateColumns = `${width_max}px 0.5fr 1fr`;
}
}
resizeColumns('.Table__col_day');
.Table__row {
background-color: plum;
display: grid;
grid-template-columns: 0.5fr 0.5fr 1fr;
}
.Table__row:nth-of-type(even) {
background-color: lime;
}
<div class="Table">
<div class="Table__row">
<div class="Table__col_day">
<span>Mon</span>
</div>
<div class="Table__col_time">
<span>10am</span>
</div>
<div class="Table__col_title">
<span>Some event</span>
</div>
</div>
<div class="Table__row">
<div class="Table__col_day">
<span>Tue</span>
</div>
<div class="Table__col_time">
<span>12:30pm</span>
</div>
<div class="Table__col_title">
<span>Another event</span>
</div>
</div>
<div class="Table__row">
<div class="Table__col_day">
<span>Wed</span>
</div>
<div class="Table__col_time">
<span>9:00am</span>
</div>
<div class="Table__col_title">
<span>A different event</span>
</div>
</div>
</div>

Answer 1

You said it at the beginning: "table design" so use table
.Table {
display: table;
width: 100%;
}
.Table__row {
background-color: plum;
display: table-row;
}
.Table__row > * {
display: table-cell;
white-space: nowrap;
}
.Table__row > *:not(.Table__day) {
width: 50%;
}
.Table__row:nth-of-type(even) {
background-color: lime;
}
<div class="Table">
<div class="Table__row">
<div class="Table__day">Mon</div>
<div class="Table__time">10am</div>
<div class="Table__title">Some event</div>
</div>
<div class="Table__row">
<div class="Table__day">Tue</div>
<div class="Table__time">12:30pm</div>
<div class="Table__title">Another event</div>
</div>
<div class="Table__row">
<div class="Table__day">Wed</div>
<div class="Table__time">9:00am</div>
<div class="Table__title">A different event</div>
</div>
</div>
Or consider display:contents if you want to keep display:grid;
.Table {
display: grid;
grid-template-columns: auto 1fr 1fr;
}
.Table__row {
display: contents;
}
.Table__row > * {
background-color: plum;
}
.Table__row:nth-of-type(even) > * {
background-color: lime;
}
<div class="Table">
<div class="Table__row">
<div class="Table__day">Mon</div>
<div class="Table__time">10am</div>
<div class="Table__title">Some event</div>
</div>
<div class="Table__row">
<div class="Table__day">Tue</div>
<div class="Table__time">12:30pm</div>
<div class="Table__title">Another event</div>
</div>
<div class="Table__row">
<div class="Table__day">Wed</div>
<div class="Table__time">9:00am</div>
<div class="Table__title">A different event</div>
</div>
</div>