In today's digital world, images play a crucial role in making a website visually appealing. However, sometimes we want to go beyond just displaying an image and add some text on top of it. This is where centering text over an image in a table comes into play. In this article, we will explore how to achieve this using JavaScript, CSS, and HTML.
The first step is to create a table and add an image as one of its cells. Let's assume we have a table with two columns and one row. In the first column, we will have our image, and in the second column, we will add our text. Our HTML code will look something like this:
```
<table>
<tr>
<td><img src="image.jpg"></td>
<td>Text over image</td>
</tr>
</table>
```
Now, to center the text over the image, we need to use CSS. We will give our table a relative position and set the image as its background using the `background-image` property. This will allow us to position the text over the image. To center the text horizontally, we will use the `text-align: center` property, and to center it vertically, we will use the `vertical-align: middle` property. Our CSS code will look like this:
```
table {
position: relative;
}
td {
text-align: center;
vertical-align: middle;
}
td:first-child {
background-image: url(image.jpg);
background-repeat: no-repeat;
background-size: cover;
}
```
Next, we need to make sure the text is positioned on top of the image. We can achieve this by giving the second column a higher `z-index` value than the first column. This will ensure that the text appears on top of the image. Our updated CSS code will look like this:
```
table {
position: relative;
}
td {
text-align: center;
vertical-align: middle;
}
td:first-child {
background-image: url(image.jpg);
background-repeat: no-repeat;
background-size: cover;
}
td:last-child {
z-index: 1;
}
```
But what if we want the text to appear only when the user hovers over the image? This is where JavaScript comes into play. We will use the `onmouseover` and `onmouseout` event handlers to show and hide the text respectively. Our updated HTML code will look like this:
```
<table>
<tr>
<td onmouseover="showText()" onmouseout="hideText()"><img src="image.jpg"></td>
<td id="text" style="display: none">Text over image</td>
</tr>
</table>
```
Next, we need to define our JavaScript functions to show and hide the text. Our JavaScript code will look like this:
```
function showText() {
document.getElementById("text").style.display = "block";
}
function hideText() {
document.getElementById("text").style.display = "none";
}
```
And there you have it! Now, when the user hovers over the image, the text will appear on top of it, and when they move their cursor away, the text will disappear.
In conclusion, centering text over an image in a table is a simple yet effective way to make your website more visually appealing. By using JavaScript, CSS, and HTML, we can achieve this in just a few lines of code. So go ahead and give it a try on your website and see the difference it makes. Happy coding!