Bootstrap 4 introduces a new breakpoint to the grid system XL. Below are the Bootstrap 4 media queries used for the grid system breakpoints for you to add to your projects CSS file to customize things. If you are new to the Bootstrap grid I wrote a post explaining how it works in this post.
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Bootstrap 4 grid tiers and media query breakpoints
xs = Extra small <576px
Max container width None (auto)
sm = Small ≥576px
Max container width 540px
md = Medium ≥768px
Max container width 720px
lg = Large ≥992px
Max container width 960px
xl = Extra large ≥1200px
Max container width 1140px
Bootstrap 4 media queries code snippet
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 | /* #################################################### M E D I A Q U E R I E S #################################################### */ /* :::::::::::::::::::::::::::::::::::::::::::::::::::: Bootstrap 4 breakpoints */ /* Extra small devices (portrait phones, less than 576px) No media query since this is the default in Bootstrap because it is "mobile first" */ /* Small devices (landscape phones, 576px and up) */ @media (min-width: 576px) { } /* Medium devices (tablets, 768px and up) The navbar toggle appears at this breakpoint */ @media (min-width: 768px) { } /* Large devices (desktops, 992px and up) */ @media (min-width: 992px) { } /* Extra large devices (large desktops, 1200px and up) */ @media (min-width: 1200px) { } /* :::::::::::::::::::::::::::::::::::::::::::::::::::: Custom media queries */ /* Set width to make card deck cards 100% width */ @media (max-width: 950px) { } |