How to remove lefthand sidebar, help please

We had used the code below to hide the lefthand sidebar in Twenty Sixteen with the tags etc., but the code below also caused the mobile responsive display to get skewed. How would we use similar code or modify the code below to remove the lefthand sidebard without skewing or detrimentally affecting the mobile version? Many thanks

“/*to get rid of the left sidebar on posts*/

.post .entry-footer {display:none;}

.post .entry-content {min-width:100%;}”