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csssvgionic-frameworkcss-shapes

circle progress bar css


I want to create a circle bar which stroke will be getting thicker as it progress.
Is it possible using css, or svg which can run on ionic mobile app.

Here is the what I want to achieve :

enter image description here

and here is fiddle for starting point :

.wrap {
  background: #0b1626;
  padding: 2em;
  color: #FFF;
  font-family: 'Arial Black';
}
.knob {
  position: relative;
  margin: 0 auto;
  padding: 1.5em;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  border: 1px solid #e84d51;
}
.knob .val {
  padding-top: 1em;
  font-size: 28px;
  text-align: center;
}
<div class="wrap">
  <div class="knob">
    <div class="stats">
      <p class="val">16,858<br>1,285</p>
    </div>
  </div>
</div>


Solution

  • Here is my attempt. There is a lot of divs, but I didn't had the time to try to reduce them.

    Basically, it plays with offsets between one circle and the other.

    .container {
      width: 400px;
      height: 400px;
      position: relative;
      background-color: black;
    }
    
    .left {
      position: absolute;
      width: 50%;
      height: 100%;
      right: 0px;
      overflow: hidden;
    }
    
    .moving {
      animation: rotatel 8s 1s linear forwards; /* to keep both animations the same */
    }
    
    .left .moving {
      position: absolute;
      width: calc(200% - 70px);
      height: calc(100% - 70px);
      right: 15px;
      top: 20px;
      border: 20px solid transparent;
      border-top-color: red;
      border-right-color: red;
      border-radius: 50%;
      transform: rotate(-135deg);
    }
    
    @keyframes rotatel {
       from {transform: rotate(-135deg);}
       50%, 100% {transform: rotate(45deg);}
    }
    
    .right {
      position: absolute;
      width: 50%;
      height: 100%;
      left: 0px;
      overflow: hidden;
    }
    
    .right .moving {
      position: absolute;
      width: calc(200% - 50px);
      height: calc(100% - 50px);
      left: 10px;
      top: 0px;
      border: 20px solid transparent;
      border-top-color: red;
      border-right-color: red;
      border-radius: 50%;
      transform: rotate(45deg);
      animation-name: rotater;
    }
    
    @keyframes rotater {
       0%, 50% {transform: rotate(45deg);}
       100% {transform: rotate(225deg);}
    }
    .inner {
      position: absolute;
      width: calc(100% - 40px);
      height: calc(100% - 40px);
      border-radius: 50%;
      background-color: white;
      left: 20px;
      top: 20px;
      border: red solid 1px;
      background-color: black;
    }
    <div class="container">
    <div class="left">
        <div class="moving"></div>
    </div>
    <div class="right">
        <div class="moving"></div>
    </div>
    <div class="inner"></div>
    </div>

    As an aside, an exmple about achieving the underlying shape in a div, using borders an a pseudoelement

    .test1 {
      width: 400px;
      height: 400px;
      border: 1px solid red;
      border-top-width: 1px;
      border-right-width: 10px;
      border-bottom-width: 20px;
      border-left-width: 30px;
      border-radius: 50%;
      position: relative;
      margin: 40px;
    }
    
    .test1:after {
      content: "";
      position: absolute;
      width: 50%;
      height: 50%;
      border: 0px solid green;
      border-left-width: 30px;
      border-top-width: 40px;
      border-radius: 100% 0px 0px 0px;
      position: absolute;
      top: -40px;
      left: -30px;
    }
    <div class="test1"></div>