divcsshide

Div CSS Hiding

In web development, it is often necessary to hide some elements. Common ones include hiding pop-ups, drop-down menus, sidebars, etc. There are many ways to achieve these functions. Today we will learn how to use CSS to hide elements.

In CSS, there are two commonly used properties that can be used to hide elements: display and visibility. Their usage methods are slightly different, let’s talk about them separately below.

1. display attribute

The display attribute can control the display mode of the element, including whether to display it, the display method, etc. Among them, display: none can completely hide the element without occupying any position or space. When using this attribute, the element does not appear on the page and cannot be accessed through JavaScript.

Next let’s take a look at how to use the display attribute to hide elements:

<!-- HTML 代码 -->
<div id="element">这是一个元素</div>

/* CSS 代码 */
#element {
  display: none;
}

The above code uses the display attribute to hide the element with the id of element. This element does not appear on the page and does not take up any space. To make the element redisplay, simply set the display property to a different value.

In addition to display: none, the display attribute also has other values, such as inline, block, inline-block, etc., which can be selected according to the actual situation. In the following example, we change the display mode of the element by changing the value of the display attribute:

<!-- HTML 代码 -->
<div id="element">这是一个元素</div>

/* CSS 代码 */
#element {
  display: inline-block;
}

The above code sets the display attribute of the element with the id of element to inline-block, that is, inline block Level elements are displayed. Note that the elements here are only hidden and displayed, not completely deleted.

2. visibility attribute

The visibility attribute can also control the display and hiding of elements, but unlike the display attribute, elements hidden using the visibility attribute will still occupy space. Just can't see it. For situations where you need an element to occupy space in its original position but not be displayed, you can use the visibility attribute.

The following is an example of using the visibility attribute to hide elements:

<!-- HTML 代码 -->
<div id="element">这是一个元素</div>

/* CSS 代码 */
#element {
  visibility: hidden;
}

The above code uses the visibility attribute to hide the element with the id element, but the element still occupies a position on the page. Like the display attribute, the visibility attribute also has other values, such as visible (default value, indicating that the element is visible) and collapse (used for table elements, indicating that cells are hidden and merged), etc.

3. Conclusion

Through the display attribute and visibility attribute, we can easily realize the display and hiding functions of elements. The application of these attributes is not limited to hiding elements, but can also be used to adjust the display mode and style of elements, etc., with high flexibility. When developing web pages, you can make flexible choices based on your needs.

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