剪辑路径，如何创建循环进度条？

Question

我已经看到了许多创建循环进度条的解决方案。他们似乎都是非常长和复杂的。我想要创建一个非常简单的一个，仅仅通过画两个圆圈在对方之上，并剪掉一部分外部的一个，以便创建一个进度条的外观低于100%。

我的HTML

    <div class="outter">
      <div class="inner"></div>
    </div>

我的CSS

.outter {
  background-color: #08a1db;
  width: 100px;
  height: 100px;
  border-radius: 50%;
  position: relative;
}

.inner {
  background-color: white;
  width: 84px;
  height: 84px;
  border-radius: 50%;
  position: absolute;
  top: 50%;
  left: 50%;
  margin: -42px 0 0 -42px;
}

现在，我遇到麻烦的部分是使用剪辑路径。我无法从文档中找出如何裁剪外部循环并创建进度条的效果。有什么建议吗？

Answer 1

剪辑css运算符被标记为不推荐使用，并被剪辑路径所取代，而IE并不完全支持这个路径。

用剪辑，

​

.progress-circle {
  font-size: 20px;
  margin: 20px;
  position: relative;
  /* so that children can be absolutely positioned */
  padding: 0;
  width: 5em;
  height: 5em;
  background-color: #F2E9E1;
  border-radius: 50%;
  line-height: 5em;
}

.progress-circle:after {
  border: none;
  position: absolute;
  top: 0.35em;
  left: 0.35em;
  text-align: center;
  display: block;
  border-radius: 50%;
  width: 4.3em;
  height: 4.3em;
  background-color: white;
  content: " ";
}


/* Text inside the control */

.progress-circle span {
  position: absolute;
  line-height: 5em;
  width: 5em;
  text-align: center;
  display: block;
  color: #08a1db;
  z-index: 2;
}

.left-half-clipper {
  /* a round circle */
  border-radius: 50%;
  width: 5em;
  height: 5em;
  position: absolute;
  /* needed for clipping */
  clip: rect(0, 5em, 5em, 2.5em);
  /* clips the whole left half*/
}


/* when p>50, don't clip left half*/

.progress-circle.over50 .left-half-clipper {
  clip: rect(auto, auto, auto, auto);
}

.value-bar {
  /*This is an overlayed square, that is made round with the border radius,
   then it is cut to display only the left half, then rotated clockwise
   to escape the outer clipping path.*/
  position: absolute;
  /*needed for clipping*/
  clip: rect(0, 2.5em, 5em, 0);
  width: 5em;
  height: 5em;
  border-radius: 50%;
  border: 0.45em solid #08a1db;
  /*The border is 0.35 but making it larger removes visual artifacts */
  /*background-color: #4D642D;*/
  /* for debug */
  box-sizing: border-box;
}


/* Progress bar filling the whole right half for values above 50% */

.progress-circle.over50 .first50-bar {
  /*Progress bar for the first 50%, filling the whole right half*/
  position: absolute;
  /*needed for clipping*/
  clip: rect(0, 5em, 5em, 2.5em);
  background-color: #08a1db;
  border-radius: 50%;
  width: 5em;
  height: 5em;
}

.progress-circle:not(.over50) .first50-bar {
  display: none;
}


/* Progress bar rotation position */

.progress-circle.p0 .value-bar {
  display: none;
}

.progress-circle.p1 .value-bar {
  transform: rotate(4deg);
}

.progress-circle.p2 .value-bar {
  transform: rotate(7deg);
}

.progress-circle.p3 .value-bar {
  transform: rotate(11deg);
}

.progress-circle.p4 .value-bar {
  transform: rotate(14deg);
}

.progress-circle.p5 .value-bar {
  transform: rotate(18deg);
}

.progress-circle.p6 .value-bar {
  transform: rotate(22deg);
}

.progress-circle.p7 .value-bar {
  transform: rotate(25deg);
}

.progress-circle.p8 .value-bar {
  transform: rotate(29deg);
}

.progress-circle.p9 .value-bar {
  transform: rotate(32deg);
}

.progress-circle.p10 .value-bar {
  transform: rotate(36deg);
}

.progress-circle.p11 .value-bar {
  transform: rotate(40deg);
}

.progress-circle.p12 .value-bar {
  transform: rotate(43deg);
}

.progress-circle.p13 .value-bar {
  transform: rotate(47deg);
}

.progress-circle.p14 .value-bar {
  transform: rotate(50deg);
}

.progress-circle.p15 .value-bar {
  transform: rotate(54deg);
}

.progress-circle.p16 .value-bar {
  transform: rotate(58deg);
}

.progress-circle.p17 .value-bar {
  transform: rotate(61deg);
}

.progress-circle.p18 .value-bar {
  transform: rotate(65deg);
}

.progress-circle.p19 .value-bar {
  transform: rotate(68deg);
}

.progress-circle.p20 .value-bar {
  transform: rotate(72deg);
}

.progress-circle.p21 .value-bar {
  transform: rotate(76deg);
}

.progress-circle.p22 .value-bar {
  transform: rotate(79deg);
}

.progress-circle.p23 .value-bar {
  transform: rotate(83deg);
}

.progress-circle.p24 .value-bar {
  transform: rotate(86deg);
}

.progress-circle.p25 .value-bar {
  transform: rotate(90deg);
}

.progress-circle.p26 .value-bar {
  transform: rotate(94deg);
}

.progress-circle.p27 .value-bar {
  transform: rotate(97deg);
}

.progress-circle.p28 .value-bar {
  transform: rotate(101deg);
}

.progress-circle.p29 .value-bar {
  transform: rotate(104deg);
}

.progress-circle.p30 .value-bar {
  transform: rotate(108deg);
}

.progress-circle.p31 .value-bar {
  transform: rotate(112deg);
}

.progress-circle.p32 .value-bar {
  transform: rotate(115deg);
}

.progress-circle.p33 .value-bar {
  transform: rotate(119deg);
}

.progress-circle.p34 .value-bar {
  transform: rotate(122deg);
}

.progress-circle.p35 .value-bar {
  transform: rotate(126deg);
}

.progress-circle.p36 .value-bar {
  transform: rotate(130deg);
}

.progress-circle.p37 .value-bar {
  transform: rotate(133deg);
}

.progress-circle.p38 .value-bar {
  transform: rotate(137deg);
}

.progress-circle.p39 .value-bar {
  transform: rotate(140deg);
}

.progress-circle.p40 .value-bar {
  transform: rotate(144deg);
}

.progress-circle.p41 .value-bar {
  transform: rotate(148deg);
}

.progress-circle.p42 .value-bar {
  transform: rotate(151deg);
}

.progress-circle.p43 .value-bar {
  transform: rotate(155deg);
}

.progress-circle.p44 .value-bar {
  transform: rotate(158deg);
}

.progress-circle.p45 .value-bar {
  transform: rotate(162deg);
}

.progress-circle.p46 .value-bar {
  transform: rotate(166deg);
}

.progress-circle.p47 .value-bar {
  transform: rotate(169deg);
}

.progress-circle.p48 .value-bar {
  transform: rotate(173deg);
}

.progress-circle.p49 .value-bar {
  transform: rotate(176deg);
}

.progress-circle.p50 .value-bar {
  transform: rotate(180deg);
}

.progress-circle.p51 .value-bar {
  transform: rotate(184deg);
}

.progress-circle.p52 .value-bar {
  transform: rotate(187deg);
}

.progress-circle.p53 .value-bar {
  transform: rotate(191deg);
}

.progress-circle.p54 .value-bar {
  transform: rotate(194deg);
}

.progress-circle.p55 .value-bar {
  transform: rotate(198deg);
}

.progress-circle.p56 .value-bar {
  transform: rotate(202deg);
}

.progress-circle.p57 .value-bar {
  transform: rotate(205deg);
}

.progress-circle.p58 .value-bar {
  transform: rotate(209deg);
}

.progress-circle.p59 .value-bar {
  transform: rotate(212deg);
}

.progress-circle.p60 .value-bar {
  transform: rotate(216deg);
}

.progress-circle.p61 .value-bar {
  transform: rotate(220deg);
}

.progress-circle.p62 .value-bar {
  transform: rotate(223deg);
}

.progress-circle.p63 .value-bar {
  transform: rotate(227deg);
}

.progress-circle.p64 .value-bar {
  transform: rotate(230deg);
}

.progress-circle.p65 .value-bar {
  transform: rotate(234deg);
}

.progress-circle.p66 .value-bar {
  transform: rotate(238deg);
}

.progress-circle.p67 .value-bar {
  transform: rotate(241deg);
}

.progress-circle.p68 .value-bar {
  transform: rotate(245deg);
}

.progress-circle.p69 .value-bar {
  transform: rotate(248deg);
}

.progress-circle.p70 .value-bar {
  transform: rotate(252deg);
}

.progress-circle.p71 .value-bar {
  transform: rotate(256deg);
}

.progress-circle.p72 .value-bar {
  transform: rotate(259deg);
}

.progress-circle.p73 .value-bar {
  transform: rotate(263deg);
}

.progress-circle.p74 .value-bar {
  transform: rotate(266deg);
}

.progress-circle.p75 .value-bar {
  transform: rotate(270deg);
}

.progress-circle.p76 .value-bar {
  transform: rotate(274deg);
}

.progress-circle.p77 .value-bar {
  transform: rotate(277deg);
}

.progress-circle.p78 .value-bar {
  transform: rotate(281deg);
}

.progress-circle.p79 .value-bar {
  transform: rotate(284deg);
}

.progress-circle.p80 .value-bar {
  transform: rotate(288deg);
}

.progress-circle.p81 .value-bar {
  transform: rotate(292deg);
}

.progress-circle.p82 .value-bar {
  transform: rotate(295deg);
}

.progress-circle.p83 .value-bar {
  transform: rotate(299deg);
}

.progress-circle.p84 .value-bar {
  transform: rotate(302deg);
}

.progress-circle.p85 .value-bar {
  transform: rotate(306deg);
}

.progress-circle.p86 .value-bar {
  transform: rotate(310deg);
}

.progress-circle.p87 .value-bar {
  transform: rotate(313deg);
}

.progress-circle.p88 .value-bar {
  transform: rotate(317deg);
}

.progress-circle.p89 .value-bar {
  transform: rotate(320deg);
}

.progress-circle.p90 .value-bar {
  transform: rotate(324deg);
}

.progress-circle.p91 .value-bar {
  transform: rotate(328deg);
}

.progress-circle.p92 .value-bar {
  transform: rotate(331deg);
}

.progress-circle.p93 .value-bar {
  transform: rotate(335deg);
}

.progress-circle.p94 .value-bar {
  transform: rotate(338deg);
}

.progress-circle.p95 .value-bar {
  transform: rotate(342deg);
}

.progress-circle.p96 .value-bar {
  transform: rotate(346deg);
}

.progress-circle.p97 .value-bar {
  transform: rotate(349deg);
}

.progress-circle.p98 .value-bar {
  transform: rotate(353deg);
}

.progress-circle.p99 .value-bar {
  transform: rotate(356deg);
}

.progress-circle.p100 .value-bar {
  transform: rotate(360deg);
}

<p><b>These Are My Progess Bars</b></p>
<div class="progress-circle p10">
  <span>10%</span>
  <div class="left-half-clipper">
<div class="first50-bar"></div>
<div class="value-bar"></div>
  </div>
</div>
<div class="progress-circle p33">
  <span>33%</span>
  <div class="left-half-clipper">
<div class="first50-bar"></div>
<div class="value-bar"></div>
  </div>
</div>
<div class="progress-circle over50 p66">
  <span>66%</span>
  <div class="left-half-clipper">
<div class="first50-bar"></div>
<div class="value-bar"></div>
  </div>
</div>
<div class="progress-circle over50 p77">
  <span>77%</span>
  <div class="left-half-clipper">
<div class="first50-bar"></div>
<div class="value-bar"></div>
  </div>
</div>
<div class="progress-circle over50 p99">
  <span>99%</span>
  <div class="left-half-clipper">
<div class="first50-bar"></div>
<div class="value-bar"></div>
  </div>
</div>
<div class="progress-circle over50 p100">
  <span>100%</span>
  <div class="left-half-clipper">
<div class="first50-bar"></div>
<div class="value-bar"></div>
  </div>
</div>

​