我如何在bootstrap和CSS中居圆圈进度条？

Question

<link href="http://www.cssscript.com/demo/circular-progress-bar-plain-html-css/css-circular-prog-bar.css" rel="stylesheet"/>
<link href="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet"/>
    <div class="row">
      <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 p20">
        <span>20%</span>
        <div class="left-half-clipper">
          <div class="first50-bar"></div>
          <div class="value-bar"></div>
        </div>
      </div>
      <div class="progress-circle p30">
        <span>30%</span>
        <div class="left-half-clipper">
          <div class="first50-bar"></div>
          <div class="value-bar"></div>
        </div>
      </div>
    </div>

我使用bootstrap 3和circle progress bar。 我努力使3个进度条居中，但它继续向左。 添加边距，但它会在移动网络中出现中断布局。 我怎样才能将三个进度条中心化？ 我想将3个进度条居中，并在3个进度条下添加文本。

result image

Answer 1

您需要使用一些Bootstrap的网格类来修复布局，特别是col-sm-4和center-block。见下面的演示：

/*https://github.com/jumpifzero/purecss-circular-progress-bar/blob/master/css-circular-prog-bar.css*/

.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: #53777A;
    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 #53777A; /*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: #53777A;
   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); }
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<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet"/>
<div class="row">
    <div class="col-sm-4">
        <div class="progress-circle p10 center-block">
            <span>10%</span>
            <div class="left-half-clipper">
                <div class="first50-bar"></div>
                <div class="value-bar"></div>
            </div>
        </div>
    </div>
    <div class="col-sm-4">
        <div class="progress-circle p20 center-block">
            <span>20%</span>
            <div class="left-half-clipper">
                <div class="first50-bar"></div>
                <div class="value-bar"></div>
            </div>
        </div>
    </div>
    <div class="col-sm-4">
        <div class="progress-circle p30 center-block">
            <span>30%</span>
            <div class="left-half-clipper">
                <div class="first50-bar"></div>
                <div class="value-bar"></div>
            </div>
        </div>
    </div>
</div>

Answer 2

向您的进度圈级别添加左右自动边距，如下所示：

.progress-circle {
   margin-right: auto;
   margin-left: auto;
}

这不应该在移动设备上中断。

Answer 3

示例1：

在进度条类display:inline-block中使用.progress-circle。并将text-align:center添加到父div

.row{
    text-align:center;
}

.progress-circle{
    display:inline-block
}

示例2：

.progress-circle{
    display:block;
    margin: 0px auto;
}