css background-repeat

.background-repeat {
background-repeat: no-repeat, repeat, repeat-x, repeat-y, round, round space, space, space round;
}
repeat 至關於repeat repeat
repeat-x 至關於repeat-x no-repeat
repeat-y 至關於no-repeat repeat
space 至關於space space
round至關於round round
no-repeat至關於no-repeat no-repeat
也就是說，在background-repeat取值是，能夠將x和y的值任意組合，好比round space、space round、round repeat-y之類的。別的不說，咱們來看一個round space的組合

參考：http://www.w3cplus.com/css3/css3-background-repeat-space-round.html