Fit & Fab – Gym and Fitness HTML5 Template is a Bootstrap 3.0 HTML Site Template. Being a Responsive Fluid layout, it’s built on Mobile First Approach which makes it best of all. It is coded in LESS CSS so you get freedom to change its color theme of your choice with just changing a variable in CSS (this is explained below how you can do this).
Demo: https://themeforest.net/item/fit-fab-aerobic-gym-and-fitness-bootstrap-html5-template/14340415