css textbox read only

In website design, we often use text boxes to save information entered by users. In some cases, we hope that this text box can only be used to display information and cannot be modified. At this time, you need to use the read-only property of CSS.

In HTML, we usually use input tags to create text boxes. Among them, the type attribute can set the type of input box, such as text box, password box, email, etc. To make a text box read-only, we need to set the readonly property to true. Here is an example:

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In the above code, the value of the text box is "johndoe ”, the readonly attribute is set to true, that is, read-only status.

Now, let’s see how to make a text box read-only via CSS. First, we need to find the input element in the HTML and then use the attribute selector to select the read-only text box. Attribute selectors can select elements based on their attribute values. The syntax is attribute=value. For example, to select a read-only text box, we can use the following code:

input[readonly] {

background-color: #eee;

}

The above code will select all text boxes that have readonly The background color of the attribute's input element is set to gray. If you only want to select a specific type of text box, you can write like this:

inputtype="text" {

background-color: #eee;

}

This will select all type attributes "text" input elements with the readonly attribute set to true and set their background color to gray. If you want to further limit the selection, you can use other selectors, such as class or ID selectors.

In addition to changing the background color, you can also use other CSS styles to display read-only text boxes. For example, you can change the color, borders, font, etc. of the text box. Here are some common read-only text box styles:

/ Make the text box uneditable/
input[readonly] {

-webkit-user-select: none; /* Safari/Chrome */
-moz-user-select: none; /* Firefox */
-ms-user-select: none; /* IE/Edge */
user-select: none;

}

/ Remove the border of the text box/
input[readonly] {

border: none;

}

/ Change the background color and font color of the text box and font size/
input[readonly] {

background-color: #f0f0f0;
color: #333;
font-size: 14px;

}

In short, using the read-only property of CSS, you can easily make the text box read-only. This ensures that the information entered by the user is not modified. By adjusting the CSS style, we can also change the display effect of the text box to make it more consistent with the design style of the website.

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