vue添加加载动画

vue项目太大了,依赖的js 文件太多，放到服务器的时候,加载期间有一段时间的空白期,所以想办法加上一段动画,减少这段空白期

vue2.x版本

创建动画效果和dom元素,放在index.html里

index.html

   <div class="index_loading">
        <div id="load">
            <div>l</div>
            <div>o</div>
            <div>a</div>
            <div>d</div>
</div>
</div>

vue 加载完成之后隐藏动画dom

 beforeCreate(){
       let loadi=document.getElementsByClassName("index_loading")
      // console.log(loading_index.innerText)
       for (let i=0;i<loadi.length;i++){
       loadi[i].style.display="none"

       }
  },

这里我遇到一个问题,无法直接获得'index_loading'的dom ,我通过循环实现了一样的效果

附上代码

<div class="index_loading">
        <div id="load">
            <div>l</div>
            <div>o</div>
            <div>a</div>
            <div>d</div>
</div>
</div>
<style>
.index_load_text {
    animation: bounce 0.75s cubic-bezier(0.05, 0, 0.2, 1) infinite alternate;
    display: inline-block;
    transform: translate3d(0, 0, 0);
    margin-top: 0.5em;
    text-shadow: rgba(255, 255, 255, 0.4) 0 0 0.05em;
    font: normal 500 6rem 'Varela Round', sans-serif;
}

@keyframes bounce {
    0% {
        transform: translate3d(0, 0, 0);
        text-shadow: rgba(255, 255, 255, 0.4) 0 0 0.05em;
    }
    100% {
        transform: translate3d(0, -1em, 0);
        text-shadow: rgba(255, 255, 255, 0.4) 0 1em 0.35em;
    }
}

#load {
    position: fixed;
    width: 600px;
    height: 36px;
    left: 50%;
    top: 40%;
    margin-left: -300px;
    overflow: visible;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
    cursor: default;
}

#load div {
    position: absolute;
    width: 20px;
    height: 36px;
    opacity: 0;
    font-family: Helvetica, Arial, sans-serif;
    animation: move 2s linear infinite;
    -o-animation: move 2s linear infinite;
    -moz-animation: move 2s linear infinite;
    -webkit-animation: move 2s linear infinite;
    transform: rotate(180deg);
    -o-transform: rotate(180deg);
    -moz-transform: rotate(180deg);
    -webkit-transform: rotate(180deg);
    color: #35C4F0;
}

#load div:nth-child(2) {
    animation-delay: 0.2s;
    -o-animation-delay: 0.2s;
    -moz-animation-delay: 0.2s;
    -webkit-animation-delay: 0.2s;
}

#load div:nth-child(3) {
    animation-delay: 0.4s;
    -o-animation-delay: 0.4s;
    -webkit-animation-delay: 0.4s;
    -webkit-animation-delay: 0.4s;
}

#load div:nth-child(4) {
    animation-delay: 0.6s;
    -o-animation-delay: 0.6s;
    -moz-animation-delay: 0.6s;
    -webkit-animation-delay: 0.6s;
}

#load div:nth-child(5) {
    animation-delay: 0.8s;
    -o-animation-delay: 0.8s;
    -moz-animation-delay: 0.8s;
    -webkit-animation-delay: 0.8s;
}

#load div:nth-child(6) {
    animation-delay: 1s;
    -o-animation-delay: 1s;
    -moz-animation-delay: 1s;
    -webkit-animation-delay: 1s;
}

#load div:nth-child(7) {
    animation-delay: 1.2s;
    -o-animation-delay: 1.2s;
    -moz-animation-delay: 1.2s;
    -webkit-animation-delay: 1.2s;
}

@keyframes move {
    0% {
        left: 0;
        opacity: 0;
    }
    35% {
        left: 41%;
        -moz-transform: rotate(0deg);
        -webkit-transform: rotate(0deg);
        -o-transform: rotate(0deg);
        transform: rotate(0deg);
        opacity: 1;
    }
    65% {
        left: 59%;
        -moz-transform: rotate(0deg);
        -webkit-transform: rotate(0deg);
        -o-transform: rotate(0deg);
        transform: rotate(0deg);
        opacity: 1;
    }
    100% {
        left: 100%;
        -moz-transform: rotate(-180deg);
        -webkit-transform: rotate(-180deg);
        -o-transform: rotate(-180deg);
        transform: rotate(-180deg);
        opacity: 0;
    }
}

@-moz-keyframes move {
    0% {
        left: 0;
        opacity: 0;
    }
    35% {
        left: 41%;
        -moz-transform: rotate(0deg);
        transform: rotate(0deg);
        opacity: 1;
    }
    65% {
        left: 59%;
        -moz-transform: rotate(0deg);
        transform: rotate(0deg);
        opacity: 1;
    }
    100% {
        left: 100%;
        -moz-transform: rotate(-180deg);
        transform: rotate(-180deg);
        opacity: 0;
    }
}

@-webkit-keyframes move {
    0% {
        left: 0;
        opacity: 0;
    }
    35% {
        left: 41%;
        -webkit-transform: rotate(0deg);
        transform: rotate(0deg);
        opacity: 1;
    }
    65% {
        left: 59%;
        -webkit-transform: rotate(0deg);
        transform: rotate(0deg);
        opacity: 1;
    }
    100% {
        left: 100%;
        -webkit-transform: rotate(-180deg);
        transform: rotate(-180deg);
        opacity: 0;
    }
}

@-o-keyframes move {
    0% {
        left: 0;
        opacity: 0;
    }
    35% {
        left: 41%;
        -o-transform: rotate(0deg);
        transform: rotate(0deg);
        opacity: 1;
    }
    65% {
        left: 59%;
        -o-transform: rotate(0deg);
        transform: rotate(0deg);
        opacity: 1;
    }
    100% {
        left: 100%;
        -o-transform: rotate(-180deg);
        transform: rotate(-180deg);
        opacity: 0;
    }
}

</style>

效果还不错