* { margin:0; padding:0 } ul { list-style:none } .lucky_box { width:500px; height:300px; border:1px solid red; border-radius:5px; padding:20px; margin:100px auto } h2 { text-align:center; height:60px; color:red } #lucky_ball_list { height:50px; padding-left:65px; margin-bottom:30px; } #lucky_ball_list li { float:left; height:40px; line-height:40px; width:40px; text-align:center; font-size:24px; border:2px solid red; margin-right:20px; color:red } button { height:40px; width:100px } p { word-break:break-all; font-size:20px; padding:10px; color:#333; }