input type=number 去掉输入框中的上下箭头

默认：<input type="number" /><br><br>
处理：<input type="number" class="deal" />

.deal::-webkit-textfield-decoration-container {
background-color: #f0f3f9;
}    //添加背景色 下边两行是去掉input 输入框右边的上下箭头按钮
.deal::-webkit-inner-spin-button {
-webkit-appearance: none;
}
.deal::-webkit-outer-spin-button {
-webkit-appearance: none;
}