更改

use separate styles for Vector and Monobook
/**
* Explicitly set width of the UTC-clock list element, so that we can use a
* hidden peer gadget to add space where the clock would go before it loads.
*/
.skin-vector #utcdate {
width: 6em;
/*
* The default margin-left is 0.75em, but set it again here explicitly, so
* we can be sure of the exact width.
*/
margin-left: 0.75em;
}

.skin-monobook #utcdate {
width: 6.279em;
display: inline-block; /* We need this for the width property to work */
/*
* The default margin-left is 1em, but set it again here explicitly, so
* we can be sure of the exact width.
*/
margin-left: 1em;
}