Safari 11.1	Chrome 65.0.3325.181	EdgeHTML 17.17133

Bugs in Safari rendering:

• absence of font-weight descriptor should be treated the same as font-weight: normal (the initial value), so it should clamp rendering to the normal weight
• font-weight: normal bold should be the same as font-weight: 400 700, but fails to clamp (appears to ignore the descriptor)

Bugs in Chrome rendering:

• font-weight: normal bold should be the same as font-weight: 400 700, but behaves like the initial value

Bugs in EdgeHTML rendering:

• the font-weight descriptor appears to be ignored for rendering (though it would be used for font matching, not tested here); no clamping of used font-weight occurs