body,div,dl,dt,dd,ol,h1,h2,h3,h4,h5,h6,form,input,p,th,td{
   margin:0;padding:0;}*{
   margin: 0;padding:0;}img{
   border:0;}ul {
   margin:0;padding:0;}/ul li {
   list-style:none;}input,textarea {
   outline: none;background:none;border:none;}.clearfix:after{
    content: "";  display: block; clear: both; visibility: hidden; height: 0;}.wrap *{
     box-sizing: border-box;  background-repeat: no-repeat;   -webkit-tap-highlight-color: rgba(0,0,0,0);  tap-highlight-color: rgba(0,0,0,0);  -webkit-appearance: none;  -moz-appearance: none;  appearance: none;  -webkit-focus-ring-color: rgba(0,0,0,0);  focus-ring-color: rgba(0,0,0,0);  resize: none;  outline: 0;} /*表单常用处理方法*/ /*数量加减时，禁止双击选中*/ span.num{ moz-user-select: -moz-none;-moz-user-select: none;-o-user-select:none;-khtml-user-select:none;-webkit-user-select:none;-ms-user-select:none;user-select:none; } /*清除焦点高亮*/ input {outline: none;} input::-ms-clear{display:none;} ::-ms-clear, ::-ms-reveal{display: none;} /*清除输入时背景变黄*/ input:-webkit-autofill, textarea:-webkit-autofill, select:-webkit-autofill {background-color:none !important;background-image: none !important;color: rgb(0, 0, 0) !important;   -webkit-box-shadow: 0 0 0px 1000px white inset; } /*修改placeholder默认颜色*/ ::-moz-placeholder{color:#838383;}              //Firefox ::-webkit-input-placeholder{color:#838383;}     //Chrome,Safari :-ms-input-placeholder{color:#838383;}          //IE10