CSS for creating a homescreen app with a height of 100% of the

Question

CSS for creating a homescreen app with a height of 100% of the

I'm currently working on creating a CSS-based app homescreen that mimics the layout of an iPhone, where you can select different apps. Essentially, I am aiming for a 3x2 grid that spans 100% of the device's page.

My main issue is that this design needs to be compatible with various devices, which means the height and width can vary depending on the device being used.

While the width seems to be functioning correctly, there are instances where the height causes scrolling on certain devices. What I really want is for the app page to occupy the entire screen without any need for scrolling.

Here is the HTML code snippet:

<div class="outer">
    <div class="row">
        <div class="iconL">
            <img src="http://coloredwebdesign.com/wp-content/uploads/2012/02/person-icon.png" />
        </div>
         <div class="iconR">
            <img src="http://coloredwebdesign.com/wp-content/uploads/2012/02/person-icon.png" />
        </div>
    </div>
    <div class="row">
         <div class="iconL">
            <img src="http://coloredwebdesign.com/wp-content/uploads/2012/02/person-icon.png" />
        </div>
         <div class="iconR">
            <img src="http://coloredwebdesign.com/wp-content/uploads/2012/02/person-icon.png" />
        </div>
    </div>
    <div class="row">
         <div class="iconL">
            <img src="http://coloredwebdesign.com/wp-content/uploads/2012/02/person-icon.png" />
        </div>
         <div class="iconR">
            <img src="http://coloredwebdesign.com/wp-content/uploads/2012/02/person-icon.png" />
        </div>
    </div>
</div>

And here is my CSS code:

.outer{
    width: 100%;
    height: 100%;
}

.row {
    width: 100%;
}

.iconL {
    float: left;
    width: 50%;
}

.iconL img {
    float: left;
    width: 100%;
}

.iconR {
    float: left;
    width: 50%;
}

.iconR img {
    float: right;
    width: 100%;
}

I have created a JSFiddle showcasing the issue: http://jsfiddle.net/QrbKh/

As you can observe, scrolling occurs within the content despite my intention for it to cover the full screen without requiring scrolling.

html css

Answer 1

Answer №1

Percents can be tricky because they are always relative to the parent element. When you inspect the Developer Tools, you'll notice that .outer has a height of 0. This is because its parent element, which is the body, does not have a set height and is therefore interpreted as zero (meaning 100% of zero is still zero).

To fix this issue, simply include the following in your CSS:

html,
body {
    height:100%;
    width:100%;
}

This will make the html and body elements fill the entire page.

Next, add the following:

.row {
    height:33.3%;
}

.iconL,
.iconR,
.iconL img,
.iconR img {
    height:100%;
}

This setup should work well. However, since dividing 100 by 3 results in a remainder, also include:

body {
    overflow:hidden;
}

Another solution is to use viewport values:

.row {
    height:33.3vh;
}

Here, "vh" stands for "viewport height," meaning 33.3vh represents one-third of the viewport's height. Viewport values generally enjoy good support across browsers. You can check their compatibility here: http://caniuse.com/#search=viewport

Answer 2

Percents can be tricky because they are always relative to the parent element. When you inspect the Developer Tools, you'll notice that .outer has a height of 0. This is because its parent element, which is the body, does not have a set height and is therefore interpreted as zero (meaning 100% of zero is still zero).

To fix this issue, simply include the following in your CSS:

html,
body {
    height:100%;
    width:100%;
}

This will make the html and body elements fill the entire page.

Next, add the following:

.row {
    height:33.3%;
}

.iconL,
.iconR,
.iconL img,
.iconR img {
    height:100%;
}

This setup should work well. However, since dividing 100 by 3 results in a remainder, also include:

body {
    overflow:hidden;
}

Another solution is to use viewport values:

.row {
    height:33.3vh;
}

Here, "vh" stands for "viewport height," meaning 33.3vh represents one-third of the viewport's height. Viewport values generally enjoy good support across browsers. You can check their compatibility here: http://caniuse.com/#search=viewport

Answer 3

Answer №2

If you're looking to limit the height of an image, you can use the max-height property in CSS, like shown below. Is this what you had in mind?
Check out the demo on jsFiddle

img {
    max-height: calc(100%/3); // or 33.33%
}

Answer 4

If you're looking to limit the height of an image, you can use the max-height property in CSS, like shown below. Is this what you had in mind?
Check out the demo on jsFiddle

img {
    max-height: calc(100%/3); // or 33.33%
}

Answer 5

Answer №3

To achieve the desired outcome, consider utilizing the following CSS code:

html, body {
    height: 100%;
    padding: 0;
    margin: 0;
}
.outer{
    height: 100%;
}
.row {
    height: 33.333333333%;
    overflow: hidden;
}
.iconL {
    float:left;
    width: 50%;
    height: 100%;
    text-align: center;
    background-color: yellow;
}
.iconL img {
    height: 100%;
    vertical-align: top;
}
.iconR {
    float:left;
    width: 50%;
    height: 100%;
    text-align: center;
    background-color: beige;
}
.iconR img {
    height: 100%;
    vertical-align: top;
}

It's essential to specify height: 100% for both html and body elements as a reference value for descendant elements.

The key lies in scaling images to match the row height, set at 33.33% of the screen height.

Including vertical-align: top for images helps tidy up any whitespace below the baseline.

With only two floated elements in the row, they can be aligned either left-to-left or right-to-right.

Adding overflow: hidden to .row ensures that floats remain within their block formatting context.

View the demo at: http://jsfiddle.net/audetwebdesign/ZYL2C/

In Firefox, the layout resembles:

You have the flexibility to align the left image on the right and the right image on the left, adjusting margins accordingly for spacing control between the images in your markup.

Answer 6

To achieve the desired outcome, consider utilizing the following CSS code:

html, body {
    height: 100%;
    padding: 0;
    margin: 0;
}
.outer{
    height: 100%;
}
.row {
    height: 33.333333333%;
    overflow: hidden;
}
.iconL {
    float:left;
    width: 50%;
    height: 100%;
    text-align: center;
    background-color: yellow;
}
.iconL img {
    height: 100%;
    vertical-align: top;
}
.iconR {
    float:left;
    width: 50%;
    height: 100%;
    text-align: center;
    background-color: beige;
}
.iconR img {
    height: 100%;
    vertical-align: top;
}

It's essential to specify height: 100% for both html and body elements as a reference value for descendant elements.

The key lies in scaling images to match the row height, set at 33.33% of the screen height.

Including vertical-align: top for images helps tidy up any whitespace below the baseline.

With only two floated elements in the row, they can be aligned either left-to-left or right-to-right.

Adding overflow: hidden to .row ensures that floats remain within their block formatting context.

View the demo at: http://jsfiddle.net/audetwebdesign/ZYL2C/

In Firefox, the layout resembles:

You have the flexibility to align the left image on the right and the right image on the left, adjusting margins accordingly for spacing control between the images in your markup.

CSS for creating a homescreen app with a height of 100% of the

Answer №1

Answer №2

Answer №3

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