It is advance styling, normally we do not need it in the starting, so you can move to container.
Breakpoints are customizable widths that are use to make responsive website, here we see how bootstrap is using css breakpoints.
Min-width
// 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) {
}
// X-Large devices (large desktops, 1200px and up)
@media (min-width: 1200px) {
}
// XX-Large devices (larger desktops, 1400px and up)
@media (min-width: 1400px) {
}
// Source mixins
// No media query necessary for xs breakpoint as it's effectively
@media (min-width: 0) {
}
@include media-breakpoint-up(sm) {
}
@include media-breakpoint-up(md) {
}
@include media-breakpoint-up(lg) {
}
@include media-breakpoint-up(xl) {
}
@include media-breakpoint-up(xxl) {
}
// Usage
// Example: Hide starting at `min-width: 0`, and then show at the `sm` breakpoint
.custom-class {
display: none;
}
@include media-breakpoint-up(sm) {
.custom-class {
display: block;
}
}
Max-width
// X-Small devices (portrait phones, less than 576px)
@media (max-width: 575.98px) {
}
// Small devices (landscape phones, less than 768px)
@media (max-width: 767.98px) {
}
// Medium devices (tablets, less than 992px)
@media (max-width: 991.98px) {
}
// Large devices (desktops, less than 1200px)
@media (max-width: 1199.98px) {
}
// X-Large devices (large desktops, less than 1400px)
@media (max-width: 1399.98px) {
}
// XX-Large devices (larger desktops)
// No media query since the xxl breakpoint has no upper bound on its width
// No media query necessary for xs breakpoint as it's effectively
@media (max-width: 0) {
}
@include media-breakpoint-down(sm) {
}
@include media-breakpoint-down(md) {
}
@include media-breakpoint-down(lg) {
}
@include media-breakpoint-down(xl) {
}
@include media-breakpoint-down(xxl) {
}
// Example: Style from medium breakpoint and down
@include media-breakpoint-down(md) {
.custom-class {
display: block;
}
}
