how to add stylish download buttom in blogger

.body {
        margin: 50px;
        font-family: helvetica, sans-serif;
        background: #e9f0f4;
    }
    #wrap {
        margin: 20px auto;
        text-align: center;
    }
    .btn-slide, .btn-slide2 {
        position: relative;
        display: inline-block;
        height: 50px;
        width: 200px;
        line-height: 50px;
        padding: 0;
        border-radius: 50px;
        background: #ooo000;
        border: 2px solid #0099cc;
        margin: 10px;
        transition: .5s;
    }
    .btn-slide2 {
        border: 2px solid #efa666;
    }
    .btn-slide:hover {
        background-color: #0099cc;
    }
    .btn-slide2:hover {
        background-color: #efa666;
    }
    .btn-slide:hover span.circle, .btn-slide2:hover span.circle2 {
        left: 100%;
        margin-left: -45px;
        background-color: #fdfdfd;
        color: #0099cc;
    }
    .btn-slide2:hover span.circle2 {
        color: #efa666;
    }
    .btn-slide:hover span.title, .btn-slide2:hover span.title2 {
        left: 40px;
        opacity: 0;
    }
    .btn-slide:hover span.title-hover, .btn-slide2:hover span.title-hover2 {
        opacity: 1;
        left: 40px;
    }
    .btn-slide span.circle, .btn-slide2 span.circle2 {
        display: block;
        background-color: #0099cc;
        color: #fff;
        position: absolute;
        float: left;
        margin: 5px;
        line-height: 42px;
        height: 40px;
        width: 40px;
        top: 0;
        left: 0;
        transition: .5s;
        border-radius: 50%;
    }
    .btn-slide2 span.circle2 {
        background-color: #efa666;
    }
    .btn-slide span.title,
      .btn-slide span.title-hover, .btn-slide2 span.title2,
      .btn-slide2 span.title-hover2 {
        position: absolute;
        left: 90px;
        text-align: center;
        margin: 0 auto;
        font-size: 16px;
        font-weight: bold;
        color: #30abd5;
        transition: .5s;
    }
    .btn-slide2 span.title2,
      .btn-slide2 span.title-hover2 {
        color: #efa666;
        left: 80px;
      }
    .btn-slide span.title-hover, .btn-slide2 span.title-hover2 {
        left: 80px;
        opacity: 0;
    }
    .btn-slide span.title-hover, .btn-slide2 span.title-hover2 {
        color: #fff;
    }