Useful Bootstrap Snippets

box-sizing.css

*,
::after,
::before {
  box-sizing: border-box
}

clearfix.css

.clearfix::after {
  display: block;
  clear: both;
  content: ""
}

mediaqueries.css

/*
Extra small devices (portrait phones, less than 576px)
No media query for `xs` since this is the default in Bootstrap */

/* Small devices (landscape phones, 576px and up) */
@media (min-width: 576px) { ... }

/* Medium devices (tablets, 768px and up) */
@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) { ... }