无法更改尺寸

wxss里面：

.pro-item{

overflow: hidden;

}

.pro-icon{

float: right;

width :200rpx;

height:200rpx;

}

.pro-body{

margin-left: 200;

}

wxml里面:

<view class='items-list'>

<view class='pro-item'>

<image clsss='pro-icon' src='/images/icon.png'> </image>

<view class='pro-body'>

<view class='pro-title'>sdsf</view>

<text>weofv</text>

<view class='pro-footer'>

<image class='btn-detial' src='/images/logo.png'></image>

<image class='btn-detial2' src='/images/logo2.png'></image>

</view>

</view>

</view>

</view>

为什么无论我在wxss里面怎么改wight和height都不能改变界面显示的尺寸