3/6 tab html布局，其中标签占据整个宽度

I am trying to make a "tab widget", and I want the tabs to occupy the whole width of it. If there were 4 or 5 tabs, I could change the width of the li's to 25% or 20% or a definite number, but since I want 6 tabs, the number would have to be 16.66666667%, and it never looks good.I am trying to make a "tab widget", and I want