Unexpected semicolon, flexmonster.css

There are 2 extraneous semicolons in the current (2.9.102) flexmonster.css  (lines 7256-7257)

#fm-toolbar-wrapper .fm-toolbar-ui .fm-row-10colors .fm-r10c-item {

  content: "";

  display: inline-block;

  vertical-align: top;

  position: relative;

  cursor: pointer;

  height: 36px;

  width: -webkit-calc(10% - 1px);;   <-------

  width: calc(10% - 1px);;               <-------

  margin-right: 1px;

}

It causes my nuxt3+tailwind project to error with:

ERROR  Internal server error: Unexpected semicolon                                                                                  

Plugin: @tailwindcss/vite:generate:serve