断点(BreakPoints)
一.Available breakpointsBreakpoint Class infix Dimensions
X-Small None <576px
Small sm ≥576px
Medium md ≥768px
Large lg ≥992px
Extra large xl ≥1200px
Extra extra large xxl ≥1400px
二._variables.scss
$grid-breakpoints: (
xs: 0,
sm: 576px,
md: 768px,
lg: 992px,
xl: 1200px,
xxl: 1400px
);
三.viewport视口
<meta name="viewport" content="width=device-width, user-scalable=no, initial-scale=1.0>
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