@keyframes progress-bar-stripes { from { background-position: 40px 0; } to { background-position: 0 0; } } .progress-bar-striped { background-image: -webkit-linear-gradient(45deg, rgba(255, 255, 255, .75) 25%, transparent 25%, transparent 50%, rgba(255, 255, 255, .75) 50%, rgba(255, 255, 255, .75) 75%, transparent 75%, transparent); background-image: -o-linear-gradient(45deg, rgba(255, 255, 255, .75) 25%, transparent 25%, transparent 50%, rgba(255, 255, 255, .75) 50%, rgba(255, 255, 255, .75) 75%, transparent 75%, transparent); background-image: linear-gradient(45deg, rgba(255, 255, 255, .75) 25%, transparent 25%, transparent 50%, rgba(255, 255, 255, .75) 50%, rgba(255, 255, 255, .75) 75%, transparent 75%, transparent); -webkit-background-size: 40px 40px; background-size: 40px 40px; } .progress-bar-striped { background-image: -webkit-linear-gradient(45deg, rgba(255, 255, 255, .75) 25%, transparent 25%, transparent 50%, rgba(255, 255, 255, .75) 50%, rgba(255, 255, 255, .75) 75%, transparent 75%, transparent); background-image: -o-linear-gradient(45deg, rgba(255, 255, 255, .75) 25%, transparent 25%, transparent 50%, rgba(255, 255, 255, .75) 50%, rgba(255, 255, 255, .75) 75%, transparent 75%, transparent); background-image: linear-gradient(45deg, rgba(255, 255, 255, .75) 25%, transparent 25%, transparent 50%, rgba(255, 255, 255, .75) 50%, rgba(255, 255, 255, .75) 75%, transparent 75%, transparent); } .progress-bar.active { -webkit-animation: progress-bar-stripes 2s linear infinite; -o-animation: progress-bar-stripes 2s linear infinite; animation: progress-bar-stripes 2s linear infinite; } .bar-container { background: $blue_l; .progress-bar { height: 100%; } }