html5-css综合练习

div{
     600px;
    height: 800px;
    padding: 40px;
    font-size: 12px;
    line-height: 25px;
    border:20px ridge rgba(200,60,30,0.6);
    background-image: url(../pic/sc16.png),url(../pic/sc17.png),url(../pic/sc5.png),url(../pic/sc18.png);
    background-repeat: no-repeat,no-repeat,repeat,repeat;
    background-size: 25%,25%,auto 100px,auto;
    background-position: left top,right bottom,left top;
    background-clip:border-box,border-box,content-box,padding-box;
    background-origin:border-box,border-box,content-box,padding-box;
}
p{
    padding: 0;
    margin: 0;
    text-indent: 2em;
}