binary values (on/off ) for everything, including representations ofnumbers and colors, and 255 is one of the numbers that just naturallyfall out of that sort of setup.
Monday 20th of November 2017 02:45:44 AM
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font-family: Verdana, Arial, Helvetica, SunSans-Regular, Sans-Serif;
border-right:2px solid #996666;
border-bottom:2px solid #996666;
Anyway, this is almost exactly the same as setting percentage values:only the scale is different, going up to 255instead of 100%. Accordingly, the values in Table 3-2 correspond to our usual list of colors.
As expected, any value outside the range of
auto: the width of the
element's content, and the left and right margins. The left and
right padding and borders must be set to specific values, or else
they default to a width of zero (again, assuming no
border-style is declared; if one has been set,
then the width of the borders is set to be the vaguely defined value
medium ). Figure 8-10 provides a
handy illustration for remembering which parts of the box can take a
value of auto, and which cannot.