diff --git a/src/less/core/utils/motion/fade.less b/src/less/core/utils/motion/fade.less
deleted file mode 100644
index ad14b0bc1..000000000
--- a/src/less/core/utils/motion/fade.less
+++ /dev/null
@@ -1,36 +0,0 @@
-@import "../../../index";
-
-.fade-motion(@className, @keyframeName) {
-  @name: ~'bi-@{className}';
-  .make-motion(@name, @keyframeName);
-  .@{name}-enter,
-  .@{name}-appear {
-    opacity: 0;
-    animation-timing-function: linear;
-  }
-  .@{name}-leave {
-    animation-timing-function: linear;
-  }
-}
-
-.fade-motion(fade, biFade);
-
-@keyframes biFadeIn {
-  0% {
-    opacity: 0;
-  }
-
-  100% {
-    opacity: 1;
-  }
-}
-
-@keyframes biFadeOut {
-  0% {
-    opacity: 1;
-  }
-
-  100% {
-    opacity: 0;
-  }
-}
diff --git a/src/less/core/utils/motion/move.less b/src/less/core/utils/motion/move.less
deleted file mode 100644
index ab707807c..000000000
--- a/src/less/core/utils/motion/move.less
+++ /dev/null
@@ -1,131 +0,0 @@
-@import "../../../index";
-
-.move-motion(@className, @keyframeName) {
-  @name: ~'bi-@{className}';
-  .make-motion(@name, @keyframeName);
-  .@{name}-enter,
-  .@{name}-appear {
-    opacity: 0;
-    animation-timing-function: @ease-out-circ;
-  }
-  .@{name}-leave {
-    animation-timing-function: @ease-in-circ;
-  }
-}
-
-.move-motion(move-up, biMoveUp);
-.move-motion(move-down, biMoveDown);
-.move-motion(move-left, biMoveLeft);
-.move-motion(move-right, biMoveRight);
-
-@keyframes biMoveDownIn {
-  0% {
-    transform: translateY(100%);
-    transform-origin: 0 0;
-    opacity: 0;
-  }
-
-  100% {
-    transform: translateY(0%);
-    transform-origin: 0 0;
-    opacity: 1;
-  }
-}
-
-@keyframes biMoveDownOut {
-  0% {
-    transform: translateY(0%);
-    transform-origin: 0 0;
-    opacity: 1;
-  }
-
-  100% {
-    transform: translateY(100%);
-    transform-origin: 0 0;
-    opacity: 0;
-  }
-}
-
-@keyframes biMoveLeftIn {
-  0% {
-    transform: translateX(-100%);
-    transform-origin: 0 0;
-    opacity: 0;
-  }
-
-  100% {
-    transform: translateX(0%);
-    transform-origin: 0 0;
-    opacity: 1;
-  }
-}
-
-@keyframes biMoveLeftOut {
-  0% {
-    transform: translateX(0%);
-    transform-origin: 0 0;
-    opacity: 1;
-  }
-
-  100% {
-    transform: translateX(-100%);
-    transform-origin: 0 0;
-    opacity: 0;
-  }
-}
-
-@keyframes biMoveRightIn {
-  0% {
-    transform: translateX(100%);
-    transform-origin: 0 0;
-    opacity: 0;
-  }
-
-  100% {
-    transform: translateX(0%);
-    transform-origin: 0 0;
-    opacity: 1;
-  }
-}
-
-@keyframes biMoveRightOut {
-  0% {
-    transform: translateX(0%);
-    transform-origin: 0 0;
-    opacity: 1;
-  }
-
-  100% {
-    transform: translateX(100%);
-    transform-origin: 0 0;
-    opacity: 0;
-  }
-}
-
-@keyframes biMoveUpIn {
-  0% {
-    transform: translateY(-100%);
-    transform-origin: 0 0;
-    opacity: 0;
-  }
-
-  100% {
-    transform: translateY(0%);
-    transform-origin: 0 0;
-    opacity: 1;
-  }
-}
-
-@keyframes biMoveUpOut {
-  0% {
-    transform: translateY(0%);
-    transform-origin: 0 0;
-    opacity: 1;
-  }
-
-  100% {
-    transform: translateY(-100%);
-    transform-origin: 0 0;
-    opacity: 0;
-  }
-}
diff --git a/src/less/core/utils/motion/slide.less b/src/less/core/utils/motion/slide.less
deleted file mode 100644
index b956f8814..000000000
--- a/src/less/core/utils/motion/slide.less
+++ /dev/null
@@ -1,131 +0,0 @@
-@import "../../../index";
-
-.slide-motion(@className, @keyframeName) {
-  @name: ~'bi-@{className}';
-  .make-motion(@name, @keyframeName);
-  .@{name}-enter,
-  .@{name}-appear {
-    opacity: 0;
-    animation-timing-function: @ease-out-quint;
-  }
-  .@{name}-leave {
-    animation-timing-function: @ease-in-quint;
-  }
-}
-
-.slide-motion(slide-up, biSlideUp);
-.slide-motion(slide-down, biSlideDown);
-.slide-motion(slide-left, biSlideLeft);
-.slide-motion(slide-right, biSlideRight);
-
-@keyframes biSlideUpIn {
-  0% {
-    transform: scaleY(0.8);
-    transform-origin: 0% 0%;
-    opacity: 0;
-  }
-
-  100% {
-    transform: scaleY(1);
-    transform-origin: 0% 0%;
-    opacity: 1;
-  }
-}
-
-@keyframes biSlideUpOut {
-  0% {
-    transform: scaleY(1);
-    transform-origin: 0% 0%;
-    opacity: 1;
-  }
-
-  100% {
-    transform: scaleY(0.8);
-    transform-origin: 0% 0%;
-    opacity: 0;
-  }
-}
-
-@keyframes biSlideDownIn {
-  0% {
-    transform: scaleY(0.8);
-    transform-origin: 100% 100%;
-    opacity: 0;
-  }
-
-  100% {
-    transform: scaleY(1);
-    transform-origin: 100% 100%;
-    opacity: 1;
-  }
-}
-
-@keyframes biSlideDownOut {
-  0% {
-    transform: scaleY(1);
-    transform-origin: 100% 100%;
-    opacity: 1;
-  }
-
-  100% {
-    transform: scaleY(0.8);
-    transform-origin: 100% 100%;
-    opacity: 0;
-  }
-}
-
-@keyframes biSlideLeftIn {
-  0% {
-    transform: scaleX(0.8);
-    transform-origin: 0% 0%;
-    opacity: 0;
-  }
-
-  100% {
-    transform: scaleX(1);
-    transform-origin: 0% 0%;
-    opacity: 1;
-  }
-}
-
-@keyframes biSlideLeftOut {
-  0% {
-    transform: scaleX(1);
-    transform-origin: 0% 0%;
-    opacity: 1;
-  }
-
-  100% {
-    transform: scaleX(0.8);
-    transform-origin: 0% 0%;
-    opacity: 0;
-  }
-}
-
-@keyframes biSlideRightIn {
-  0% {
-    transform: scaleX(0.8);
-    transform-origin: 100% 0%;
-    opacity: 0;
-  }
-
-  100% {
-    transform: scaleX(1);
-    transform-origin: 100% 0%;
-    opacity: 1;
-  }
-}
-
-@keyframes biSlideRightOut {
-  0% {
-    transform: scaleX(1);
-    transform-origin: 100% 0%;
-    opacity: 1;
-  }
-
-  100% {
-    transform: scaleX(0.8);
-    transform-origin: 100% 0%;
-    opacity: 0;
-  }
-}
diff --git a/src/less/core/utils/motion/zoom.less b/src/less/core/utils/motion/zoom.less
deleted file mode 100644
index d3351eeef..000000000
--- a/src/less/core/utils/motion/zoom.less
+++ /dev/null
@@ -1,181 +0,0 @@
-@import "../../../index";
-
-.zoom-motion(@className, @keyframeName, @duration: @animation-duration-base) {
-  @name: ~'bi-@{className}';
-  .make-motion(@name, @keyframeName, @duration);
-  .@{name}-enter,
-  .@{name}-appear {
-    transform: scale(0); // need this by yiminghe
-    opacity: 0;
-    animation-timing-function: @ease-out-circ;
-
-    &-prepare {
-      transform: none;
-    }
-  }
-  .@{name}-leave {
-    animation-timing-function: @ease-in-out-circ;
-  }
-}
-
-// For Modal, Select choosen item
-.zoom-motion(zoom, biZoom);
-// For Popover, Popconfirm, Dropdown
-.zoom-motion(zoom-big, biZoomBig);
-// For Tooltip
-.zoom-motion(zoom-big-fast, biZoomBig, @animation-duration-fast);
-
-.zoom-motion(zoom-up, biZoomUp);
-.zoom-motion(zoom-down, biZoomDown);
-.zoom-motion(zoom-left, biZoomLeft);
-.zoom-motion(zoom-right, biZoomRight);
-
-@keyframes biZoomIn {
-  0% {
-    transform: scale(0.2);
-    opacity: 0;
-  }
-
-  100% {
-    transform: scale(1);
-    opacity: 1;
-  }
-}
-
-@keyframes biZoomOut {
-  0% {
-    transform: scale(1);
-  }
-
-  100% {
-    transform: scale(0.2);
-    opacity: 0;
-  }
-}
-
-@keyframes biZoomBigIn {
-  0% {
-    transform: scale(0.8);
-    opacity: 0;
-  }
-
-  100% {
-    transform: scale(1);
-    opacity: 1;
-  }
-}
-
-@keyframes biZoomBigOut {
-  0% {
-    transform: scale(1);
-  }
-
-  100% {
-    transform: scale(0.8);
-    opacity: 0;
-  }
-}
-
-@keyframes biZoomUpIn {
-  0% {
-    transform: scale(0.8);
-    transform-origin: 50% 0%;
-    opacity: 0;
-  }
-
-  100% {
-    transform: scale(1);
-    transform-origin: 50% 0%;
-  }
-}
-
-@keyframes biZoomUpOut {
-  0% {
-    transform: scale(1);
-    transform-origin: 50% 0%;
-  }
-
-  100% {
-    transform: scale(0.8);
-    transform-origin: 50% 0%;
-    opacity: 0;
-  }
-}
-
-@keyframes biZoomLeftIn {
-  0% {
-    transform: scale(0.8);
-    transform-origin: 0% 50%;
-    opacity: 0;
-  }
-
-  100% {
-    transform: scale(1);
-    transform-origin: 0% 50%;
-  }
-}
-
-@keyframes biZoomLeftOut {
-  0% {
-    transform: scale(1);
-    transform-origin: 0% 50%;
-  }
-
-  100% {
-    transform: scale(0.8);
-    transform-origin: 0% 50%;
-    opacity: 0;
-  }
-}
-
-@keyframes biZoomRightIn {
-  0% {
-    transform: scale(0.8);
-    transform-origin: 100% 50%;
-    opacity: 0;
-  }
-
-  100% {
-    transform: scale(1);
-    transform-origin: 100% 50%;
-  }
-}
-
-@keyframes biZoomRightOut {
-  0% {
-    transform: scale(1);
-    transform-origin: 100% 50%;
-  }
-
-  100% {
-    transform: scale(0.8);
-    transform-origin: 100% 50%;
-    opacity: 0;
-  }
-}
-
-@keyframes biZoomDownIn {
-  0% {
-    transform: scale(0.8);
-    transform-origin: 50% 100%;
-    opacity: 0;
-  }
-
-  100% {
-    transform: scale(1);
-    transform-origin: 50% 100%;
-  }
-}
-
-@keyframes biZoomDownOut {
-  0% {
-    transform: scale(1);
-    transform-origin: 50% 100%;
-  }
-
-  100% {
-    transform: scale(0.8);
-    transform-origin: 50% 100%;
-    opacity: 0;
-  }
-}