body {
    /*修改和去除移动端点击事件出现的背景框*/
    -webkit-tap-highlight-color: rgba(0,0,0,0);
    -webkit-tap-highlight-color:transparent;
}  

a:focus {
    /*去掉FF浏览器a标签虚框*/
    outline: none;
}

.container {
    /*padding-right: .9375rem;*/
    /*padding-left: .9375rem;*/
    margin-right: auto;
    margin-left: auto;
}

.container:before,
.container:after {
    display: table;
    content: " ";
}

.container:after {
    clear: both;
}

@media (min-width: 34em) {
    .container {
        max-width: 34rem;
    }
}

@media (min-width: 48.1em) {
    .container {
        max-width: 48rem;
    }
}

@media (min-width: 62em) {
    .container {
        max-width: 62rem;
    }
}

@media (min-width: 75rem) {
    .container {
        max-width: 75rem;
    }
}    
@media (max-width: 34em) {
    .container {
        padding-right: 15px;
        padding-left: 15px;
    }
}