Question

Goal:

Responsive CSS circles that:

1. Scale with equal radius.
2. Radius can be calculated by percent.
3. Radius can be controlled by media queries.

---

If solution is javascript, I still need to emulate media query triggers. I dont ‘need’ media queries but I do want the ability to control the radius by percentage at certain widths:

@media (max-width : 320px) 
{
    .x2{padding: 50%;}
}

@media (min-width : 321px) and (max-width : 800px)
{
    .x2{padding: 25%;}
}

@media (min-width: 801px)
{
    .x2{padding: 12.5%;}
}

Here is what I have so far:

http://jsfiddle.net/QmPhb/

<div class="x1">
    <div class="x2">
        lol dude      
    </div>
    <div class="x2"></div>
    <div class="x2"></div>
    <div class="x2"></div>
</div>

.x1
{
    float:left;
    width:100%;
}

.x2
{
    display:block;
    float:left;
    padding: 12.5%;          //Currently being used to control radius.
    width:auto;
    height:auto;
    border-radius:50%;
    -moz-border-radius:50%;
    -webkit-border-radius:50%;
    -khtml-border-radius: 50%;
    background:#eee;
    text-align:center;
}

Problems:

In this solution, when content is added to a circle:

• The shape contorts when scaled past it’s available padding.
• Increases the size of the radius.

---

Update:

I’ve built a working solution for this here:
Responsive CSS Circles

Answer 1

Solution:

http://jsfiddle.net/WTWrB/

The DIV structure:

We use overflow:hidden in .x2 for spill off background colors in .x3
of child elements.

Notice the content starts inside of .x3

<div class="x0">
    <div class="x1">
        <div class="x2">
            <div class="x3">
                <!-- BEG Content -->
                <div class="x4">
                    dude
                </div>
                <div class="x6">
                    <div class="x7">
                        dude
                    </div>
                    <div class="x8">
                        dude
                    </div>
                </div>                
                <div class="x5">
                    dude
                </div>
                <!-- END Content -->
            </div>
        </div>
        <div class="x2"></div>
        <div class="x2"></div>
        <div class="x2"></div>
    </div>
</div>

The CSS:

@media (max-width: 320px)
{
    .x2 {padding: 50%;}
}

@media (min-width: 321px) and (max-width: 800px)
{
    .x2 {padding: 25%;}
}

@media (min-width: 801px)
{
    .x1 {width:800px}
    .x2 {padding: 12.5%;}
}
.x0 {
    float:left;
    width:100%;
}
.x1 {
    margin:0px auto;
}
.x2 {
    overflow:hidden;
    display:block;
    float:left;
    width:auto;
    height:auto;
    position: relative;
    border-radius:50%;
    -moz-border-radius:50%;
    -webkit-border-radius:50%;
    -khtml-border-radius: 50%;
    background:#eee;
}
.x3 {
    position: absolute;
    width: 100%;
    left: 0;
    top:0;
    font-size: 100%;
    float:left;
    height:100%;
    background-color:red;
}
/* BEG Content */
.x3 div{float:left;}
.x4,.x5,.x6 {
    width:100%;
}
.x7,.x8 {
    width:50%;
    float:left;
    height:100%;
}
.x4,.x5,.x7,.x8 {
    text-align:center;
}
.x4 {
    background-color:blue;
    height:20%;
}
.x5 {
    background-color:yellow;
    height:20%;
}
.x6 {
    height:60%;
}
.x7 {
    background-color:green;
}
.x8 {
    background-color:orange;
}
/* END Content */