Javascript 使用CSS禁用动画效果

我正在为我的网站制作一个幻灯片菜单

当点击菜单图标时，我想禁用菜单向上动画的方式，让它保持静止。我该怎么做

我相信答案就在我的CSS中，但到目前为止，尝试和错误都失败了：

html, 
body, 
.container, 
.content-wrap {
    overflow: hidden;
    width: 100%;
    height: 100%;
}

.container {
    background: #373a47;
}

.menu-wrap a {
    color: #b8b7ad;
}

.menu-wrap a:hover,
.menu-wrap a:focus {
    color: #c94e50;
}

.content-wrap {
    overflow-y: scroll;
    -webkit-overflow-scrolling: touch;
}

.content {
    position: relative;
    background: #b4bad2;
}

.content::before {
    position: absolute;
    top: 0;
    left: 0;
    z-index: 10;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.3);
    content: '';
    opacity: 0;
    -webkit-transform: translate3d(100%,0,0);
    transform: translate3d(100%,0,0);
    -webkit-transition: opacity 0.4s, -webkit-transform 0s 0.4s;
    transition: opacity 0.4s, transform 0s 0.4s;
    -webkit-transition-timing-function: cubic-bezier(0.7,0,0.3,1);
    transition-timing-function: cubic-bezier(0.7,0,0.3,1);
}

/* Menu Button */
.menu-button {
    position: fixed;
    z-index: 1000;
    margin: 1em;
    padding: 0;
    width: 2.5em;
    height: 2.25em;
    border: none;
    text-indent: 2.5em;
    font-size: 1.5em;
    color: transparent;
    background: transparent;
}

.menu-button::before {
    position: absolute;
    top: 0.5em;
    right: 0.5em;
    bottom: 0.5em;
    left: 0.5em;
    background: linear-gradient(#373a47 20%, transparent 20%, transparent 40%, #373a47 40%, #373a47 60%, transparent 60%, transparent 80%, #373a47 80%);
    content: '';
}

.menu-button:hover {
    opacity: 0.6;
}

/* Close Button */
.close-button {
    width: 1em;
    height: 1em;
    position: absolute;
    right: 1em;
    top: 1em;
    overflow: hidden;
    text-indent: 1em;
    font-size: 0.75em;
    border: none;
    background: transparent;
    color: transparent;
}

.close-button::before,
.close-button::after {
    content: '';
    position: absolute;
    width: 3px;
    height: 100%;
    top: 0;
    left: 50%;
    background: #bdc3c7;
}

.close-button::before {
    -webkit-transform: rotate(45deg);
    transform: rotate(45deg);
}

.close-button::after {
    -webkit-transform: rotate(-45deg);
    transform: rotate(-45deg);
}

/* Menu */
.menu-wrap {
    position: absolute;
    z-index: 1001;
    width: 300px;
    height: 100%;
    background: #373a47;
    padding: 2.5em 1.5em 0;
    font-size: 1.15em;
    -webkit-transform: translate3d(-320px,0,0);
    transform: translate3d(-320px,0,0);
    -webkit-transition: -webkit-transform 0.4s;
    transition: transform 0.4s;
    -webkit-transition-timing-function: cubic-bezier(0.7,0,0.3,1);
    transition-timing-function: cubic-bezier(0.7,0,0.3,1);
}

.menu, 
.icon-list {
    height: 100%;
}

.icon-list {
    -webkit-transform: translate3d(0,100%,0);
    transform: translate3d(0,100%,0);
}

.icon-list a {
    display: block;
    padding: 0.8em;
    -webkit-transform: translate3d(0,500px,0);
    transform: translate3d(0,500px,0);
}

.icon-list,
.icon-list a {
    -webkit-transition: -webkit-transform 0s 0.4s;
    transition: transform 0s 0.4s;
    -webkit-transition-timing-function: cubic-bezier(0.7,0,0.3,1);
    transition-timing-function: cubic-bezier(0.7,0,0.3,1);
}

.icon-list a:nth-child(2) {
    -webkit-transform: translate3d(0,1000px,0);
    transform: translate3d(0,1000px,0);
}

.icon-list a:nth-child(3) {
    -webkit-transform: translate3d(0,1500px,0);
    transform: translate3d(0,1500px,0);
}

.icon-list a:nth-child(4) {
    -webkit-transform: translate3d(0,2000px,0);
    transform: translate3d(0,2000px,0);
}

.icon-list a:nth-child(5) {
    -webkit-transform: translate3d(0,2500px,0);
    transform: translate3d(0,2500px,0);
}

.icon-list a:nth-child(6) {
    -webkit-transform: translate3d(0,3000px,0);
    transform: translate3d(0,3000px,0);
}

.icon-list a span {
    margin-left: 10px;
    font-weight: 700;
}

/* Shown menu */
.show-menu .menu-wrap {
    -webkit-transform: translate3d(0,0,0);
    transform: translate3d(0,0,0);
    -webkit-transition: -webkit-transform 0.8s;
    transition: transform 0.8s;
    -webkit-transition-timing-function: cubic-bezier(0.7,0,0.3,1);
    transition-timing-function: cubic-bezier(0.7,0,0.3,1);
}

.show-menu .icon-list,
.show-menu .icon-list a {
    -webkit-transform: translate3d(0,0,0);
    transform: translate3d(0,0,0);
    -webkit-transition: -webkit-transform 0.8s;
    transition: transform 0.8s;
    -webkit-transition-timing-function: cubic-bezier(0.7,0,0.3,1);
    transition-timing-function: cubic-bezier(0.7,0,0.3,1);
}

.show-menu .icon-list a {
    -webkit-transition-duration: 0.9s;
    transition-duration: 0.9s;
}

.show-menu .content::before {
    opacity: 1;
    -webkit-transition: opacity 0.8s;
    transition: opacity 0.8s;
    -webkit-transition-timing-function: cubic-bezier(0.7,0,0.3,1);
    transition-timing-function: cubic-bezier(0.7,0,0.3,1);
    -webkit-transform: translate3d(0,0,0);
    transform: translate3d(0,0,0);
}

---

删除这些转换：

.show-menu .icon-list a {
    -webkit-transform: translate3d(0,0,0);
    transform: translate3d(0,0,0);/*
    -webkit-transition: -webkit-transform 0.8s;
    transition: transform 0.8s;
    -webkit-transition-timing-function: cubic-bezier(0.7,0,0.3,1);
    transition-timing-function: cubic-bezier(0.7,0,0.3,1);*/
}

.show-menu .icon-list a { /*
    -webkit-transition-duration: 0.9s;
    transition-duration: 0.9s; */
}

---

由于.icon list类引用了菜单项，因此只需删除相关样式：

。图标列表{
-webkit转换：translate3d（0100%，0）；
转换：translate3d（0100%，0）；
}
.图标列表a{
显示：块；
填充：0.8em；
-webkit转换：translate3d（0500px，0）；
转换：translate3d（0500px，0）；
}
.图标列表，
.图标列表a{
-webkit转换：-webkit转换0s0.4s；
转换：转换0s0.4s；
-webkit过渡计时功能：立方贝塞尔（0.7,0,0.3,1）；
过渡计时功能：立方贝塞尔（0.7,0,0.3,1）；
}
.图标列表a:第n个子项（2）{
-webkit转换：translate3d（01000px，0）；
转换：translate3d（01000px，0）；
}
.图标列表a:第n个子项（3）{
-webkit转换：translate3d（01500px，0）；
转换：translate3d（01500px，0）；
}
.图标列表a:第n个子项（4）{
-webkit转换：translate3d（02000px，0）；
转换：translate3d（02000px，0）；
}
.图标列表a:第n个子项（5）{
-webkit转换：translate3d（02500px，0）；
转换：translate3d（02500px，0）；
}
.图标列表a:第n个子项（6）{
-webkit转换：translate3d（03000px，0）；
转换：translate3d（03000px，0）；
}

在

中显示菜单。图标列表a

删除过渡。我现在就试试&更新小提琴。谢谢。删除了转换并添加了

转换：无

。这是最棒的——效果非常好！！