// Disable animation if transitions are disabled @if $enable-transitions { @keyframes progress-bar-stripes { from { background-position: $progress-height 0; } to { background-position: 0 0; } } } .progress { display: flex; height: $progress-height; overflow: hidden; // force rounded corners by cropping it line-height: 0; @include font-size($progress-font-size); background-color: $progress-bg; @include border-radius($progress-border-radius); @include box-shadow($progress-box-shadow); } .progress-bar { display: flex; flex-direction: column; justify-content: center; overflow: hidden; color: $progress-bar-color; text-align: center; white-space: nowrap; background-color: $progress-bar-bg; @include transition($progress-bar-transition); } .progress-bar-striped { @include gradient-striped(); background-size: $progress-height $progress-height; } @if $enable-transitions { .progress-bar-animated { animation: $progress-bar-animation-timing progress-bar-stripes; @if $enable-prefers-reduced-motion-media-query { @media (prefers-reduced-motion: reduce) { animation: none; } } } }