* {
    padding: 0;
    margin: 0;
    box-sizing: border-box;
}

body {
    max-width: 1200px;
    margin: 0 auto;
    font-size: 14px;
}

.container {
    padding: 10px 15px;
}

.tip {
    margin-bottom: 10px;
}

.section {
    text-indent: 20px;
    line-height: 1.5em;
}

.bold {
    font-weight: bold;
}

.title {
    margin: 10px 0;
    font-size: 14px;
}

.unStyle {
    list-style: none;
}

.secondList {
    padding-left: 40px;
    text-indent: 0;
}

footer {
    text-align: center;
    height: 50px;
    line-height: 50px;
}