When doing something like this:
Left Div
Right Div
Another way to do something similar is with flexbox on a wrapper element, i.e.,
.row {
display: flex;
justify-content: space-between;
}
<div class="row">
<div>Left</div>
<div>Right</div>
</div>
You could just use a margin-left with a percentage.
HTML
<div class="goleft">Left Div</div>
<div class="goright">Right Div</div>
CSS
.goright{
margin-left:20%;
}
.goleft{
margin-right:20%;
}
(goleft would be the same as default, but can reverse if needed)
text-align doesn't always work as intended for layout options, it's mainly just for text. (But is often used for form elements too).
The end result of doing this will have a similar effect to a div with float:right; and width:80% set. Except, it won't clump together like a float will. (Saving the default display properties for the elements that come after).