First, the style style is .top-bar inputoverridden by the style for a more specific one input[type="text"]. However, even if you added the attribute type, the style in version 5.0.2 is slightly different from the style in the example.
, , .css:
.top-bar input[type="text"], .top-bar .button {
font-size: 0.77778rem;
position: relative;
top: 7px;
}
.top-bar input[type="text"] {
height: auto;
padding-top: 0.35rem;
padding-bottom: 0.35rem;
font-size: 0.75rem;
}
: JSFiddle: http://jsfiddle.net/4vRNt/2/