/*取消所有默认样式*/
@charset "utf-8";
/* CSS Document */
.textarea{
    width: 800px;
    margin: 0 auto;
}

.textarea h2{
    text-align: center;
    line-height: 40px;
}
.textarea h3{
    text-align: right;

}
.base{
    width: 100%;
    height: 40px;
    background: #d7d7d8;
    margin: 20px auto;

}
.base li{
    width: 25%;
    line-height: 40px;
    float: left;
    text-align: center;
}
.context{
    width: 100%;
    margin: 0 auto;
}
.context img{
    max-width: 700px;
    margin-bottom: 20px;
}