implementing modals with html or bootstrap Options

[francesco.dz]

Hi everyone, im an italian student and im working on a project for a course in my University.
I have a problem programming the page i attached.
As you can see, at the top of the page, i'm implementing a modal in order to add new job in my site. I need to add different skills required for a job and also assign for each skill a grade required. I could manage the multiple selection of the skills but i dont know how assign them a grade different for each of them.
For now i create the modal with Bootstrap, that i find more easy to use rather Html and Css.
Some of you have some hint to help me, if is possible using Bootstrap ?
Thank you all  jobs.html ( 8.2k ) Number of downloads: 283