input标签placeholder字体居中颜色变更

需求input标签placehholder字体灰色，居中显示
方案：给input标签添加placeholder-style属性

<view class="form-item itemA">
			<input placeholder="请输入手机号" type="text" class="input1" placeholder-style="font-size:24rpx;color:#999999;text-align:center;font-weight:500;"/>
		</view>

<style lang="scss" scoped>
	.form-item {
    
    
			width: 572rpx;
			height: 90rpx;
			border-radius: 10rpx;
			background: #FFFFFF;
			overflow: hidden;
			padding: 4rpx 4rpx;
			border: 4rpx solid #E6EAF6;
			box-sizing: border-box;

			>input {
    
    
				height: 100%;
				background: #E6EAF6;
				border-radius: 10rpx;
				overflow: hidden;
			}
		}
</style>

效果图