图 2中的 textfield边框不是常规外观的单像素矩形边框。

The textfield borders in Figure 2 aren't normal-looking single-pixel rectangular borders.

youdao

我见过的许多基于CSS的导航标签大都具有一类的特征：矩形的色块，也许仅仅是一个轮廓，对于当前选中的标签则没有边框，标签在鼠标指针游至其上时改变颜色。

Many of the CSS-based tabs I've seen suffer from the same generic features: blocky rectangles of color, maybe an outline, a border disappears for the current TAB, a color changes for the hover state.

youdao

设置按钮的宽度只是稍微复杂一点：复制矩形的宽度并在元素中增加了一个单位，为矩形的边框留下位置。

Fixing the button's width is only slightly more complicated: the width is copied as is on the rectangle, but incremented by one unit on the element to leave room for the rectangle's stroke.

youdao