Responsive circle based on it's content - css

Question

I have this example JSFIDDLE contains a circle, but I'm having trouble to make it responsive according to it's content, in the above example when the content is long, it overflows the circle.
.cd-single-point {
margin:50px;
position: absolute;
border-radius: 50%;
}
.cd-single-point > a {
position: relative;
text-align:center;
padding:2px;
text-decoration: none;
z-index: 2;
display: block;
width: 20px;
height: 20px;
border-radius: inherit;
background: #d95353;
box-shadow: 0 0 10px rgba(0, 0, 0, 0.3), inset 0 1px 0 rgba(255, 255, 255, 0.3);
-webkit-transition: background-color 0.2s;
-moz-transition: background-color 0.2s;
transition: background-color 0.2s;
}
.cd-single-point::after {
/* this is used to create the pulse animation */
content: '';
position: absolute;
z-index: 1;
width: 100%;
height: 100%;
top: 0;
left: 0;
border-radius: inherit;
background-color: transparent;
-webkit-animation: cd-pulse 2s infinite;
-moz-animation: cd-pulse 2s infinite;
animation: cd-pulse 2s infinite;
}
How can I achieve this only with css?

Answer 1

You could use the padding technique on a pseudo element to keep the aspect ratio of the circle and make it responsive according to it's content :
DEMO
HTML :
<div class="wrap">
<div class="in">[phone]</div>
</div>
CSS :
.wrap{
color: #fff;
position:relative;
display:inline-block;
}
.in{
padding:60% 10%;
margin-top:-0.6em;
}
.in:after{
content:'';
position:absolute;
top:0; left:0;
width:120%;
padding-bottom:120%;
background-color:#D95353;
border-radius:50%;
z-index:-1;
}

Answer 2

How about this fiddle? http://jsfiddle.net/ctwheels/bgut7411/9/
HTML
<ul>
<li>
<div class="cd-single-point"> <a class="cd-img-replace" href="#">
<div class="takeNumber">+99</div>
</a>
</div>
</li>
<!-- .cd-single-point -->
</ul>
CSS
/* --------------------------------
Primary style
-------------------------------- */
html * {
-webkit-font-smoothing: antialiased;
-moz-osx-font-smoothing: grayscale;
}
body {
font-size: 100%;
font-family:"Roboto", sans-serif;
color: #33435a;
background-color: #3c4f6a;
}
.cd-single-point {
margin:50px;
position: absolute;
border-radius: 50%;
}
.cd-single-point > a {
position: relative;
text-align:center;
padding:5px;
text-decoration: none;
z-index: 2;
display: block;
min-width: 20px;
min-height: 20px;
border-radius: inherit;
background: #d95353;
box-shadow: 0 0 10px rgba(0, 0, 0, 0.3), inset 0 1px 0 rgba(255, 255, 255, 0.3);
-webkit-transition: background-color 0.2s;
-moz-transition: background-color 0.2s;
transition: background-color 0.2s;
}
.cd-single-point::after {
/* this is used to create the pulse animation */
content:'';
position: absolute;
z-index: 1;
width: 100%;
height: 100%;
top: 0;
left: 0;
border-radius: inherit;
background-color: transparent;
-webkit-animation: cd-pulse 2s infinite;
-moz-animation: cd-pulse 2s infinite;
animation: cd-pulse 2s infinite;
}
#-webkit-keyframes cd-pulse {
0% {
-webkit-transform: scale(1);
box-shadow: inset 0 0 5px 5px rgba(217, 83, 83, 0.8);
}
50% {
box-shadow: inset 0 0 1px 1px rgba(217, 83, 83, 0.8);
}
100% {
-webkit-transform: scale(1.6);
box-shadow: inset 0 0 1px 1px rgba(217, 83, 83, 0);
}
}
#-moz-keyframes cd-pulse {
0% {
-moz-transform: scale(1);
box-shadow: inset 0 0 1px 1px rgba(217, 83, 83, 0.8);
}
50% {
box-shadow: inset 0 0 1px 1px rgba(217, 83, 83, 0.8);
}
100% {
-moz-transform: scale(1.6);
box-shadow: inset 0 0 1px 1px rgba(217, 83, 83, 0);
}
}
#keyframes cd-pulse {
0% {
-webkit-transform: scale(1);
-moz-transform: scale(1);
-ms-transform: scale(1);
-o-transform: scale(1);
transform: scale(1);
box-shadow: inset 0 0 1px 1px rgba(217, 83, 83, 0.8);
}
50% {
box-shadow: inset 0 0 1px 1px rgba(217, 83, 83, 0.8);
}
100% {
-webkit-transform: scale(1.6);
-moz-transform: scale(1.6);
-ms-transform: scale(1.6);
-o-transform: scale(1.6);
transform: scale(1.6);
box-shadow: inset 0 0 1px 1px rgba(217, 83, 83, 0);
}
}
.takeNumber {
color:white;
font-family:Verdana;
font-size:12px;
padding-top:3px;
}
JS
var numItems = $(".cd-single-point").length;
var myHeight, myWidth;
for (i = 0; i < numItems; i++) {
myWidth = $(".cd-single-point>a:eq(" + i + ")").width();
myHeight = $(".cd-single-point>a:eq(" + i + ")").height();
if (myWidth > myHeight) {
$(".cd-single-point>a:eq(" + i + ")").css({
height: myWidth + "px"
});
}
if (myWidth < myHeight) {
$(".cd-single-point:eq(" + i + ")>a").css({
width: myHeight + "px"
});
}
$(".takeNumber:eq(" + i + ")").css({
"line-height": myWidth - parseInt($(".cd-single-point>a:eq(" + i + ")").css("padding"), 10) + "px"
});
}

Answer 3

If you're not opposed to some javascript you could check the width of the contents and then set an equivalent height.
$(function(){
var elementWidth = $(".takeNumber").width();
$(".cd-img-replace").css("height", elementWidth);
});
FIDDLE

Answer 4

Demo
css
.cd-single-point {
height: 30px;
min-width: 30px;
width: auto;
line-height: 30px;
text-align: center;
margin:50px;
position: absolute;
border-radius: 50%;
}
.cd-single-point > a {
display: block;
height: 30px;
min-width: 30px;
width: auto;
line-height: 30px;
text-align: center;
position: relative;
text-decoration: none;
z-index: 2;
border-radius: inherit;
background: #d95353;
box-shadow: 0 0 10px rgba(0, 0, 0, 0.3), inset 0 1px 0 rgba(255, 255, 255, 0.3);
-webkit-transition: background-color 0.2s;
-moz-transition: background-color 0.2s;
transition: background-color 0.2s;
}
.takeNumber {
color:white;
font-family:Verdana;
font-size:12px;
padding: 0 5px;
}