Template:Fraction/styles.css

/* {{pp|small=y}} */
.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);
 clip-path: polygon(0px 0px, 0px 0px, 0px 0px);
 height: 1px;
 margin: -1px;
 overflow: hidden;
 padding: 0;
 position: absolute;
 width: 1px;
 /* white-space: nowrap; /* already have nowrap above */
}