Converted to SASS/SCSS

src/sass/lib/animation.scss

@@ -0,0 +1,31 @@
+// --------------------------------------------------------------
+// Animations
+// --------------------------------------------------------------
+
+@keyframes plyr-progress {
+    to {
+        background-position: $plyr-progress-loading-size 0;
+    }
+}
+
+@keyframes plyr-popup {
+    0% {
+        opacity: 0.5;
+        transform: translateY(10px);
+    }
+
+    to {
+        opacity: 1;
+        transform: translateY(0);
+    }
+}
+
+@keyframes plyr-fade-in {
+    from {
+        opacity: 0;
+    }
+
+    to {
+        opacity: 1;
+    }
+}

src/sass/lib/mixins.scss

@@ -0,0 +1,99 @@
+// ==========================================================================
+// Plyr mixins
+// https://github.com/sampotts/plyr
+// ==========================================================================
+
+// Nicer focus styles
+// ---------------------------------------
+@mixin plyr-tab-focus($color: $plyr-tab-focus-default-color) {
+    box-shadow: 0 0 0 3px rgba($color, 0.35);
+    outline: 0;
+}
+
+// Font smoothing
+// ---------------------------------------
+@mixin plyr-font-smoothing($mode: true) {
+    @if $mode {
+        -moz-osx-font-smoothing: grayscale;
+        -webkit-font-smoothing: antialiased;
+    } @else {
+        -moz-osx-font-smoothing: auto;
+        -webkit-font-smoothing: subpixel-antialiased;
+    }
+}
+
+// <input type="range"> styling
+// ---------------------------------------
+@mixin plyr-range-track() {
+    background: transparent;
+    border: 0;
+    border-radius: ($plyr-range-track-height / 2);
+    height: $plyr-range-track-height;
+    transition: all 0.3s ease;
+    user-select: none;
+}
+
+@mixin plyr-range-thumb() {
+    background: $plyr-range-thumb-bg;
+    border: $plyr-range-thumb-border;
+    border-radius: 100%;
+    box-shadow: $plyr-range-thumb-shadow;
+    box-sizing: border-box;
+    height: $plyr-range-thumb-height;
+    position: relative;
+    transition: background 0.2s ease, border 0.2s ease, transform 0.2s ease;
+    width: $plyr-range-thumb-height;
+}
+
+@mixin plyr-range-thumb-active() {
+    background: $plyr-range-thumb-active-bg;
+    border-color: $plyr-range-thumb-active-border-color;
+    transform: scale(unit($plyr-range-thumb-active-height / $plyr-range-thumb-height));
+}
+
+// Fullscreen styles
+// ---------------------------------------
+@mixin plyr-fullscreen-active() {
+    background: #000;
+    border-radius: 0 !important;
+    height: 100%;
+    margin: 0;
+    width: 100%;
+
+    video {
+        height: 100%;
+    }
+
+    .plyr__video-wrapper {
+        height: 100%;
+        width: 100%;
+    }
+
+    .plyr__video-embed {
+        // Revert overflow change
+        overflow: visible;
+    }
+
+    // Vimeo requires some different styling
+    &.plyr--vimeo .plyr__video-wrapper {
+        height: 0;
+        top: 50%;
+        transform: translateY(-50%);
+    }
+
+    // Display correct icon
+    .plyr__control .icon--exit-fullscreen {
+        display: block;
+
+        + svg {
+            display: none;
+        }
+    }
+
+    // Large captions in full screen on larger screens
+    @media (min-width: $plyr-bp-lg) {
+        .plyr__captions {
+            font-size: $plyr-font-size-captions-large;
+        }
+    }
+}