作为javascript开发，简述content-box盒模型 ？
content-box盒模型是Web浏览器中HTML元素的标准盒模型。在content-box盒模型中，元素的宽度和高度属性只定义了内容区域的宽度和高度，不包括元素的内边距、边框和外边距。 例如，一个宽度为200px，高度为100px的元素，在content-box盒模型中，实际的宽度和高度可能会大于200px和100px，具体取决于元素的内边距、边框和外边距。 在content-box盒模型中，元素的总宽度和总高度可以通过计算元素的content-box宽度、内边距、边框和外边距得到。如果一个元素的width属性设置为auto，那么元素的content-box宽度将根据元素的内容自动调整。 content-box盒模型是默认的盒模型，可以通过CSS的box-sizing属性来改变元素的盒模型。如果将box-sizing属性设置为border-box，那么元素的width和height属性将定义元素的总宽度和总高度，包括元素的内边距、边框和外边距。 [2023-11-09 01:07:37 | AI写代码神器 | 230点数解答]
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