Template:Fraction/styles.css
.frac {
white-space: nowrap;
}
.frac .num,
.frac .den {
font-size: 80%;
line-height: 0; /* we want this inline */
vertical-align: super;
}
.frac .den {
vertical-align: sub;
}
/* [[Template:Screen reader-only]] is canonical implementation onwiki */
.sr-only {
border: 0;
clip: rect(0, 0, 0, 0);
height: 1px;
margin: -1px;
overflow: hidden;
padding: 0;
position: absolute;
width: 1px;
/* white-space: nowrap; /* already have nowrap above */
}