feat: sync mixly root files and common folder

mixly/common/css/drag.css

@@ -0,0 +1,98 @@
+.horizontal-line {
+    opacity: 0;
+    height: 4px;
+    width: 100%;
+    cursor: s-resize;
+    z-index: 100;
+    transition: opacity 0.2s ease;
+    touch-action: none;
+    user-select: none;
+    -webkit-user-select: none;
+}
+
+.vertical-line {
+    opacity: 0;
+    width: 4px;
+    height: 100%;
+    cursor: w-resize;
+    z-index: 100;
+    transition: opacity 0.2s ease;
+    touch-action: none;
+    user-select: none;
+    -webkit-user-select: none;
+}
+
+@-webkit-keyframes drag-fadein {
+    0% { opacity: 0; }
+    100% { opacity: 1; }
+}
+
+@keyframes drag-fadein {
+    0% { opacity: 0; }
+    100% { opacity: 1; }
+}
+
+.horizontal-line:hover,
+.vertical-line:hover {
+    -webkit-animation-name: drag-fadein;
+    animation-name: drag-fadein;
+    animation-duration: 0.2s;
+    animation-delay: .2s;
+    animation-fill-mode: forwards;
+}
+
+.horizontal-line:active,
+.vertical-line:active,
+.drag-s-container.dragging > .horizontal-line,
+.drag-w-container.dragging > .vertical-line {
+    opacity: 1;
+    animation: none;
+}
+
+.drag-s-container {
+    display: flex;
+    flex-direction: column;
+    flex-wrap: nowrap;
+}
+
+.drag-w-container {
+    display: flex;
+    flex-direction: row;
+    flex-wrap: nowrap;
+}
+
+.drag-elem {
+    position: absolute;
+    opacity: 0;
+    touch-action: none;
+    user-select: none;
+    -webkit-user-select: none;
+}
+
+.drag-s-elem {
+    width: 100%;
+    height: 4px;
+    cursor: s-resize;
+    touch-action: none;
+}
+
+.drag-w-elem {
+    width: 4px;
+    height: 100%;
+    cursor: w-resize;
+    touch-action: none;
+}
+
+html[data-bs-theme=light] .horizontal-line,
+html[data-bs-theme=light] .vertical-line,
+html[data-bs-theme=light] .drag-s-elem,
+html[data-bs-theme=light] .drag-w-elem {
+    background-color: rgb(5 214 195);
+}
+
+html[data-bs-theme=dark] .horizontal-line,
+html[data-bs-theme=dark] .vertical-line,
+html[data-bs-theme=dark] .drag-s-elem,
+html[data-bs-theme=dark] .drag-w-elem {
+    background-color: rgb(8 105 170);
+}