css实现广告动画

在PC版本浏览器上添加活动广告动画

一、html部分

css实现广告动画_第1张图片

二、css部分

.clearfix:after {

    content: "";

    display: block;

    height: 0;

    visibility: hidden; /*隐藏盒子*/

    clear: both; /*清除浮动*/

  }

  .clearfix {

    *zoom: 1; /* * 代表ie6、7能识别的特殊符号。zoom就是ie6、7清除浮动的方法。’*/

  }

  .left{

  float:left;

  }

.main-wraper{

position:absolute;

top:0;

left:0;

right:0;

bottom:0;

background-color:#fff;

}

.main-footer{

position:fixed;

bottom:0;

width:100%;

height:130px;

    background: rgba(54, 54, 54, 0.75);

    box-shadow: 0px -2px 6px 0px rgab(0, 0, 0, 0.15);

}

.footer{

padding:0 calc((100vw - 331px)/2);

}

.footer-banner{

width:256px;

height:208px;

position:relative;

bottom:78px;

margin:0 20px;

background:url(./images/ceremony-banner.png) no-repeat;

background-size:100%;

background-size:cover;

}

.footer-close{

        float: left;

        margin: 20px 0 0 20px;

        width: 15px;

        height: 15px;

        background: url(./images/ceremony-close.png) no-repeat;

        background-size: 100%;

        background-size: cover;

        cursor: pointer;

}

  .main-footer-shrink{

  position:fixed;

  left:0;

  bottom:20px;

  width:114px;

  height:46px;

  line-height: 46px;

      background: rgba(54, 54, 54, 0.75);

    box-shadow: 0px 0px 4px 0px rgba(0, 0, 0, 0.1);

border-radius: 0px 4px 4px 0px;

    cursor: pointer;

  }

      .main-footer-shrink-default span {

      font-size: 14px;

    font-family: PingFangSC-Regular;

      color: rgba(255, 255, 255, 1);

    }

    .main-footer-shrink-default i{

      display: inline-block;

      padding-left: 5px;

      box-sizing: border-box;

      font-style: normal;

      width: 6px;

      height: 10px;

      background: url(./images/ceremony-arrow.png)no-repeat;

      background-size: 100%;

      background-size: cover;

    }

    @keyframes fade-in{

    0%{

    opacity: 0;

    transform:translateX(-100%);

    }

    49%{

    opacity:0;

    }

    50%{

    opacity: 1;

    transition:all 0.5 linear;

    }

    100%{

    opacity:1;

    }

    }

      .main-footer-transform-show {

    animation: fade-in;

    animation-duration: 1s;

  }

  .main-footer-transform-hide {

    transform: translateX(-100%);

    transition: all 0.5s linear;

  }

      .main-footer-shrink-transform-show {

    animation: fade-in;

    animation-duration: 1s;

  }

  .main-footer-shrink-transform-hide {

    transform: translateX(-100%);

    transition: all 0.5s linear;

  }

三、javascript部分

let closeBanner = document.querySelector('.footer-close')

let footer = document.querySelector('.main-footer')

let footerShrink = document.querySelector('.main-footer-shrink-default')

closeBanner.addEventListener('click',()=>{

footer.classList.remove('main-footer-transform-show')

footerShrink.classList.remove('main-footer-shrink-transform-hide')

footer.classList.add('main-footer-transform-hide')

footerShrink.classList.add('main-footer-shrink','main-footer-shrink-transform-show')

})

footerShrink.addEventListener('click', ()=>{

footerShrink.classList.remove('main-footer-shrink-transform-show')

footerShrink.classList.add('main-footer-shrink','main-footer-shrink-transform-hide')

footer.classList.remove('main-footer-transform-hide')

footer.classList.add('main-footer-transform-show')

})

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