* { padding:0; margin:0; } body,html { margin:0; padding:0; font-family:sans-serif; } #box { position:relative; width:200px; height:200px; background:lightskyblue; border:10px solid lightpink; margin:auto; overflow:auto; } #content { letter-spacing:1px; font-weight:700; line-height:50px; text-transform:uppercase; background-image:-webkit-linear-gradient(top left,lightpink,lightblue); } #back { position:fixed; top:100px; margin-left:162px; width:20px; height:50px; background:rgb(94,206,243); font-size:12px; line-height:12px; text-align:center; opacity:.8; cursor:pointer; display:none; }
更新时间:2020-03-09 12:10:22