How do I make a circular border in CSS in which x% is red and the rest is white, with x being a state variable in a javascript file?

methelyne3130
July 17, 2023
320 views
0 votes
2 Answers

I am making a timer app in which there is initially a white ring surrounding the time remaining. I want to color the ring surrounding the time remaining to slowly turn red, with it being completely red as the time runs out.

<div className="countdown-timer">
     <span>{remainingTime.hours}</span>
     <span>:</span>
     <span>{remainingTime.minutes}</span>
     <span>:</span>
     <span>{remainingTime.seconds}</span>
</div>

.countdown-timer {
    width: 400px;
    height: 400px;
    border: 6px solid white;
    border-radius: 50%;
    box-shadow: black;

    font-family: "DM Sans";
    font-size: 72px;

    display: flex;
    justify-content: center;
    align-items: center;
    margin-top: 10px;
    margin-left: auto;
    margin-right: auto;
}

I tried an approach with concentric circles but did not get the intended effect I wanted.

This is what I am going for: https://phpout.com/wp-content/uploads/2023/07/AVOz3.png

Tags: css reactjs

Answers

<div>
  {remaining.Time.seconds > X.time?(
  <div className="countdown-timer">
      <span>{remainingTime.hours}</span>
      <span>:</span>
      <span>{remainingTime.minutes}</span>
      <span>:</span>
      <span>{remainingTime.seconds}</span>
  </div>):(
    <div className="countdown-timer border-danger">
      <span>{remainingTime.hours}</span>
      <span>:</span>
      <span>{remainingTime.minutes}</span>
      <span>:</span>
      <span>{remainingTime.seconds}</span>
  </div>

  )
  }
</div>

where X.time is the time above which it should remain white while less than that it will turn red

<div>
  {remaining.Time.seconds > X.time?(
  <div className="countdown-timer">
      <span>{remainingTime.hours}</span>
      <span>:</span>
      <span>{remainingTime.minutes}</span>
      <span>:</span>
      <span>{remainingTime.seconds}</span>
  </div>):(
    <div className="countdown-timer2">
      <span>{remainingTime.hours}</span>
      <span>:</span>
      <span>{remainingTime.minutes}</span>
      <span>:</span>
      <span>{remainingTime.seconds}</span>
  </div>

  )
  }
</div>


.countdown-timer {
    width: 400px;
    height: 400px;
    border: 6px solid white;
    border-radius: 50%;
    box-shadow: black;

    font-family: "DM Sans";
    font-size: 72px;

    display: flex;
    justify-content: center;
    align-items: center;
    margin-top: 10px;
    margin-left: auto;
    margin-right: auto;
}

.countdown-timer2 {
    width: 400px;
    height: 400px;
    border: 6px solid white;
    border-radius: 50%;
    box-shadow: black;
    border-color: red;

    font-family: "DM Sans";
    font-size: 72px;

    display: flex;
    justify-content: center;
    align-items: center;
    margin-top: 10px;
    margin-left: auto;
    margin-right: auto;
}

Please signup or login to give your own answer.

Click here to cancel reply.