ClassContent/历届学生/zheng-yuqing/项目练习/上课项目/在包河/css/public.css

/* 公共css */
.center {
    width: 1192px;
    margin: 0 auto;
    height: 100%;
}

.left {
    float: left;
}

.right {
    float: right;
}

.auto {
    overflow: hidden;
}

.relative {
    position: relative;
}

.absolute {
    position: absolute;
}