Draw Circle using css alone [duplicate]

问题

Is it possible to draw circle using css only which can work on most of the browsers (IE,Mozilla,Safari) ?

回答1:

You could use a .before with a content with a unicode symbol for a circle (25CF).

.circle:before {
  content: ' \25CF';
  font-size: 200px;
}

<span class="circle"></span>

I suggest this as border-radius won't work in IE8 and below (I recognize the fact that the suggestion is a bit mental).

回答2:

Yep, draw a box and give it a border radius that is half the width of the box:

#circle {
    background: #f00;
    width: 200px;
    height: 200px;
    border-radius: 50%;
}

Working demo:

http://jsfiddle.net/DsW9h/1/

#circle {
    background: #f00;
    width: 200px;
    height: 200px;
    border-radius: 50%;
}

<div id="circle"></div>

回答3:

Create a div with a set height and width (so, for a circle, use the same height and width), forming a square
add a border-radius of 50% which will make it circular in shape. (note: no prefix has been required for a long time)
You can then play around with background-color / gradients / (even pseudo elements) to create something like this:

.red {
  background-color: red;
}
.green {
  background-color: green;
}
.blue {
  background-color: blue;
}
.yellow {
  background-color: yellow;
}
.sphere {
  height: 200px;
  width: 200px;
  border-radius: 50%;
  text-align: center;
  vertical-align: middle;
  font-size: 500%;
  position: relative;
  box-shadow: inset -10px -10px 100px #000, 10px 10px 20px black, inset 0px 0px 10px black;
  display: inline-block;
  margin: 5%;
}
.sphere::after {
  background-color: rgba(255, 255, 255, 0.3);
  content: '';
  height: 45%;
  width: 12%;
  position: absolute;
  top: 4%;
  left: 15%;
  border-radius: 50%;
  transform: rotate(40deg);
}

<div class="sphere red"></div>
<div class="sphere green"></div>
<div class="sphere blue"></div>
<div class="sphere yellow"></div>
<div class="sphere"></div>

回答4:

border radius is good option, if struggling with old IE versions then try HTML codes

&#8226;

and use css to change color. Output:

•

回答5:

This will work in all browsers

#circle {
    background: #f00;
    width: 200px;
    height: 200px;
    border-radius: 50%;
    -moz-border-radius: 50%;
    -webkit-border-radius: 50%;
}

回答6:

yup.. here's my code:

<style>
  .circle{
     width: 100px;
     height: 100px;
     border-radius: 50%;
     background-color: blue
  }
</style>
<div class="circle">
</div>

回答7:

yes it is possible you can use border-radius CSS property. For more info have a look at http://zeeshanmkhan.com/post/2/css-rounded-corner-gradient-drop-shadow-and-opacity

来源：https://stackoverflow.com/questions/6936972/draw-circle-using-css-alone

标签

html

css

css-shapes