A div with an id of container is added which will allow the content to be centred and one of the backgrounds to be fixed to.

我们将内容和背景放到一个含有ID的div的容器里面。

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When we shrink the browser, the watermark textbox and search button stay the same size because their Grid container columns are a fixed width.

当我们缩小浏览器尺寸时，带水印的文本框和搜索按钮会保持同样的尺寸，因为其grid容器列的宽度是固定的。

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In particular, we have considered the width of the fixed layout which usually corresponds to the width of #container or #wrapper. Apparently

特别是，我们已经考虑到固定格局的宽度通常与container或wrapper的宽度相对应。

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