移动端头像图片上传裁剪

.button {

outline: 0;

display: inline-block;

margin-bottom: 0;

font-weight: 400;

text-align: center;

vertical-align: middle;

-ms-touch-action: manipulation;

touch-action: manipulation;

cursor: pointer;

background-image: none;

border: 1px solid transparent;

white-space: nowrap;

line-height: 1.5;

-webkit-user-select: none;

-moz-user-select: none;

-ms-user-select: none;

user-select: none;

padding: 6px 15px;

font-size: 12px;

border-radius: 4px;

transition: color .2s linear,background-color .2s linear,border .2s linear,box-shadow .2s linear;

color: #495060;

background-color: #f7f