body, ul, li, ol, dl, dd, dt, p, h1, h2, h3, h4, h5, h6, form, img {
    margin: 0;
    padding: 0;
}

a {
    color: #3e3e3e;
    text-decoration: none;
}


/*去掉行内替换元素空白缝隙*/
img {
    border: 0;
    vertical-align: middle;
}

h1, h2, h3, h4, h5, h6 {
    text-decoration: none;
    font-weight: normal;
    font-size: 100%;
}

s, i, em, u {
    font-style: normal;
    text-decoration: none;
}

.fl {
    float: left;
}

.fr {
    float: right;
}

/*清除浮动*/
.clearfix:before,
.clearfix:after {
    content: "";
    display: table;
}

.clearfix:after {
    clear: both;
}

.clearfix {
    *zoom: 1;
    /*IE/7/6*/
}
#btnBox {
    text-align: center;
    margin-top: 30px;
}
#btnBox .speed {
    font-size: 18px;
    color: #ff4747;
    font-weight: bold;
}
#btnBox ul {
    display: inline-block;
}
#btnBox ul li {
    float: left;
    padding: 14px 0;
    background-color: rgba(93,207,255,0.7);
    width: 18%;
    margin: 5px;
    border-radius: 5px;
    -webkit-box-shadow: 2px 2px 2px 2px rgba(64, 116, 153, 0.7);
    -moz-box-shadow: 2px 2px 2px 2px rgba(57, 114, 148, 0.7);
    box-shadow: 2px 2px 2px 2px rgba(59, 127, 157, 0.7);
    cursor: pointer;
}
#btnBox ul .effF {
    background-color: rgb(18, 131, 255);
}
.example {
    color: #fff;
    font-size: 14px;
    margin-left: 20px;
}
#btnBox .speedF {
    color: #c15404;
}
#btnBox .speedBtn {
    position: absolute;
    left: 50%;
    -webkit-transform: translate(-50%, 0%);
    -moz-transform: translate(-50%, 0%);
    -ms-transform: translate(-50%, 0%);
    -o-transform: translate(-50%, 0%);
    transform: translate(-50%, 0%);
}
#btnBox .speedBtn i {
    padding: 6px 10px;
    cursor: pointer;
}
@media screen and (max-width: 1430px) {
    #btnBox {
        top: 14px;
    }
}