* {
margin:0;
padding:0;
}
button {
width:50px;
height:50px;
line-height:30px;
background:skyblue;
font-size:32px;
border:none;
outline:none;
}
input {
height:30px;
text-align:center;
border:none;
font-size:32px;
}
div {
width:100%;
font-size:32px;
text-align:center;
/* margin-left:40%;
*/
margin-top:200px;
}
更新时间:2023-02-21 20:25:09
js控制数字动态加减