col offset in bootstrap
.col-md-3 .offset-md-3columns center bootstrap 3
<div class="row">
<div class="col-md-2 col-md-offset-5"></div>
</div>bootstrap Responsive
Responsive containers are new in Bootstrap v4.4. They allow you to specify a class that is 100% wide until the specified breakpoint is reached, after which we apply max-widths for each of the higher breakpoints. For example, .container-sm is 100% wide to start until the sm breakpoint is reached, where it will scale up with md, lg, and xl.
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<div class="container-sm">100% wide until small breakpoint</div>
<div class="container-md">100% wide until medium breakpoint</div>
<div class="container-lg">100% wide until large breakpoint</div>
<div class="container-xl">100% wide until extra large breakpoint</div>
// 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) { ... }
Since we write our source CSS in Sass, all our media queries are available via Sass 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) { ... }
// 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;
}
}
We occasionally use media queries that go in the other direction (the given screen size or smaller):
// Extra 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) { ... }
// Extra large devices (large desktops)
// No media query since the extra-large breakpoint has no upper bound on its width
Once again, these media queries are also available via Sass mixins:
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@include media-breakpoint-down(xs) { ... }
@include media-breakpoint-down(sm) { ... }
@include media-breakpoint-down(md) { ... }
@include media-breakpoint-down(lg) { ... }
// No media query necessary for xl breakpoint as it has no upper bound on its width
// Example: Style from medium breakpoint and down
@include media-breakpoint-down(md) {
.custom-class {
display: block;
}
}
$zindex-dropdown: 1000 !default;
$zindex-sticky: 1020 !default;
$zindex-fixed: 1030 !default;
$zindex-modal-backdrop: 1040 !default;
$zindex-modal: 1050 !default;
$zindex-popover: 1060 !default;
$zindex-tooltip: 1070 !default;Copyright © 2021 Codeinu
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