Adjusting the parent div width to match the child div width

Here is the code I am working with:

<div class="head_title">
  <img src="/path/to/image.png">
  <h1 id="entryTitle">
    <!--Cufon Font-->
  </h1>
</div>

I am trying to make the img element stretch to the full width of the 'head_title' div. However, I am facing issues when attempting to set the 'head_title' div to be as wide as the 'entryTitle' child h1 tag. Below is the CSS code I have been using:

.head_title {
    display:block;
    float:left;
    position:relative;
    height:40px;
}
.head_title img {
        height:100%;
        width:100%;
        display:block;
}
.head_title h1 {
        color:#fff;
        position:absolute;
        top:0;left:0;
        z-index:1;
        padding:0 0 0 5px;
}

The background for the parent div is within the img element itself - I prefer not to use the CSS background-image attribute since the parent div's width is dynamic and a static background image might get cut off.

I attempted using JavaScript's outerWidth, jQuery's .css("width"), and .width() methods but none seem to resolve the issue.

Answer №1

By applying the float:left property to div.head_title, the elements within have a width of 0px. This is because floating these elements prevents them from stretching to their full width.

Even though the image has a width of 100%, when the parent container's width is zero, that percentage amounts to nothing. Additionally, the h1 element being positioned absolutely does not contribute to increasing the width.

To actually increase the width of div.head_title, you need to explicitly specify a width value (such as width:100%) or remove the float property altogether.

Answer №2

Alternatively, you can achieve this with the following code:

<div class="main_container">
  <img src="/path/to/image.png">
  <h1 id="titleEntry">
    <!--Cufon Font-->
  </h1>
</div>

.main_container{
    float: left;
    position:relative;height:40px;
}
.main_container img {
    position:absolute;top:0;left:0;z-index:-1; width: 100%; height: 100%;
}
.main_container h1{color:#999;padding:0 0 0 5px;}

Check out a sample here

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