我还在用户Ana Tudor使用CSS和盒影风格和参数方程制作的Codepen上发现了这一点。非常简单，代码非常少。许多浏览器都支持CSS3框影样式:

body { background-color: black; } .tear { position: absolute; top: 50%; left: 50%; margin: -0.125em; width: 0.25em; height: 0.25em; border-radius: 50%; box-shadow: 0em -5em red, 0.00118em -4.97592em #ff1800, 0.00937em -4.90393em #ff3000, 0.03125em -4.7847em #ff4800, 0.07283em -4.6194em #ff6000, 0.13915em -4.40961em #ff7800, 0.23408em -4.15735em #ff8f00, 0.36em -3.86505em #ffa700, 0.51777em -3.53553em #ffbf00, 0.70654em -3.17197em gold, 0.92382em -2.77785em #ffef00, 1.16547em -2.35698em #f7ff00, 1.42582em -1.91342em #dfff00, 1.69789em -1.45142em #c7ff00, 1.97361em -0.97545em #afff00, 2.2441em -0.49009em #97ff00, 2.5em 0.0em #80ff00, 2.73182em 0.49009em #68ff00, 2.93032em 0.97545em #50ff00, 3.08681em 1.45142em #38ff00, 3.19358em 1.91342em #20ff00, 3.24414em 2.35698em #08ff00, 3.23352em 2.77785em #00ff10, 3.15851em 3.17197em #00ff28, 3.01777em 3.53553em #00ff40, 2.81196em 3.86505em #00ff58, 2.54377em 4.15735em #00ff70, 2.21783em 4.40961em #00ff87, 1.84059em 4.6194em #00ff9f, 1.42017em 4.7847em #00ffb7, 0.96608em 4.90393em #00ffcf, 0.48891em 4.97592em #00ffe7, 0.0em 5em cyan, -0.48891em 4.97592em #00e7ff, -0.96608em 4.90393em #00cfff, -1.42017em 4.7847em #00b7ff, -1.84059em 4.6194em #009fff, -2.21783em 4.40961em #0087ff, -2.54377em 4.15735em #0070ff, -2.81196em 3.86505em #0058ff, -3.01777em 3.53553em #0040ff, -3.15851em 3.17197em #0028ff, -3.23352em 2.77785em #0010ff, -3.24414em 2.35698em #0800ff, -3.19358em 1.91342em #2000ff, -3.08681em 1.45142em #3800ff, -2.93032em 0.97545em #5000ff, -2.73182em 0.49009em #6800ff, -2.5em 0.0em #7f00ff, -2.2441em -0.49009em #9700ff, -1.97361em -0.97545em #af00ff, -1.69789em -1.45142em #c700ff, -1.42582em -1.91342em #df00ff, -1.16547em -2.35698em #f700ff, -0.92382em -2.77785em #ff00ef, -0.70654em -3.17197em #ff00d7, -0.51777em -3.53553em #ff00bf, -0.36em -3.86505em #ff00a7, -0.23408em -4.15735em #ff008f, -0.13915em -4.40961em #ff0078, -0.07283em -4.6194em #ff0060, -0.03125em -4.7847em #ff0048, -0.00937em -4.90393em #ff0030, -0.00118em -4.97592em #ff0018; } <div class="tear"></div>

我还在用户Ana Tudor使用CSS和盒影风格和参数方程制作的Codepen上发现了这一点。非常简单，代码非常少。许多浏览器都支持CSS3框影样式:

body { background-color: black; } .tear { position: absolute; top: 50%; left: 50%; margin: -0.125em; width: 0.25em; height: 0.25em; border-radius: 50%; box-shadow: 0em -5em red, 0.00118em -4.97592em #ff1800, 0.00937em -4.90393em #ff3000, 0.03125em -4.7847em #ff4800, 0.07283em -4.6194em #ff6000, 0.13915em -4.40961em #ff7800, 0.23408em -4.15735em #ff8f00, 0.36em -3.86505em #ffa700, 0.51777em -3.53553em #ffbf00, 0.70654em -3.17197em gold, 0.92382em -2.77785em #ffef00, 1.16547em -2.35698em #f7ff00, 1.42582em -1.91342em #dfff00, 1.69789em -1.45142em #c7ff00, 1.97361em -0.97545em #afff00, 2.2441em -0.49009em #97ff00, 2.5em 0.0em #80ff00, 2.73182em 0.49009em #68ff00, 2.93032em 0.97545em #50ff00, 3.08681em 1.45142em #38ff00, 3.19358em 1.91342em #20ff00, 3.24414em 2.35698em #08ff00, 3.23352em 2.77785em #00ff10, 3.15851em 3.17197em #00ff28, 3.01777em 3.53553em #00ff40, 2.81196em 3.86505em #00ff58, 2.54377em 4.15735em #00ff70, 2.21783em 4.40961em #00ff87, 1.84059em 4.6194em #00ff9f, 1.42017em 4.7847em #00ffb7, 0.96608em 4.90393em #00ffcf, 0.48891em 4.97592em #00ffe7, 0.0em 5em cyan, -0.48891em 4.97592em #00e7ff, -0.96608em 4.90393em #00cfff, -1.42017em 4.7847em #00b7ff, -1.84059em 4.6194em #009fff, -2.21783em 4.40961em #0087ff, -2.54377em 4.15735em #0070ff, -2.81196em 3.86505em #0058ff, -3.01777em 3.53553em #0040ff, -3.15851em 3.17197em #0028ff, -3.23352em 2.77785em #0010ff, -3.24414em 2.35698em #0800ff, -3.19358em 1.91342em #2000ff, -3.08681em 1.45142em #3800ff, -2.93032em 0.97545em #5000ff, -2.73182em 0.49009em #6800ff, -2.5em 0.0em #7f00ff, -2.2441em -0.49009em #9700ff, -1.97361em -0.97545em #af00ff, -1.69789em -1.45142em #c700ff, -1.42582em -1.91342em #df00ff, -1.16547em -2.35698em #f700ff, -0.92382em -2.77785em #ff00ef, -0.70654em -3.17197em #ff00d7, -0.51777em -3.53553em #ff00bf, -0.36em -3.86505em #ff00a7, -0.23408em -4.15735em #ff008f, -0.13915em -4.40961em #ff0078, -0.07283em -4.6194em #ff0060, -0.03125em -4.7847em #ff0048, -0.00937em -4.90393em #ff0030, -0.00118em -4.97592em #ff0018; } <div class="tear"></div>

你的CSS代码的主要问题是:

你用的高度和宽度不同 你没有旋转正确的角度大小

所以，通过“修复”这些问题，你将生成:

.tear { 显示:inline-block; 变换:旋转(-45度); 边框:5px纯绿色; 宽度:100 px; 身高:100 px; border-top-left-radius: 50%; border-bottom-left-radius: 50%; border-bottom-right-radius: 50%; ｝ /***仅用于演示***/ .tear { 保证金:50 px; ｝ < div class = "扯" > < / div >

请注意，为了节省CSS的长度，你可以重写你的border-radius属性:

border-radius: 50% 0 50% 50%;

这可以通过伪元素来增强，如图所示

选择

我在codeen上找到了Vinay Challuru写的。

请注意，根据这里的逻辑，我可以为几乎任何可能的构建形状等创建SVG。例如，一个快速输出是:

<svg viewBox='0 0 400 400'> <path fill="none" stroke="#333" stroke-width="5" d=" m200,40 C200,115 280,180 280,240 a80,80,0 0,1,120,240 C120,180 200,115 200,40" stroke-linejoin='miter'></path> < / svg >

它使用SVG，并允许您以多种方式更改形状，能够将其形状更改为所需的结果:

var SVG = function() { this.element = document.getElementsByTagName("svg")[0]; this.namespace = "http://www.w3.org/2000/svg"; this.width = 400; this.height = 400; } /****Let's initialise our SVG ready to draw our shape****/ var svg = new SVG(); /****This sets up the user interface - we've included the script for this as an external library for the codepen****/ var gui = new dat.GUI(); /****Here's where the code to create the shape begins!****/ var Teardrop = function() { this.x = svg.width * 0.5; this.y = svg.height * 0.1; this.width = svg.width * 0.4; this.triangleHeight = svg.height * 0.5; this.yCP1 = svg.height * 0.2; this.yCP2 = svg.height * 0.45; this.element = null; this.ctrlPoints = []; this.anchors = []; this.fill = "none"; this.stroke = "#333"; this.strokeWidth = 2; this.showCtrlPoints = true; this.init(); } Teardrop.prototype.init = function() { this.element = document.createElementNS(svg.namespace, "path"); svg.element.appendChild(this.element); this.element.setAttribute("fill", this.fill); this.element.setAttribute("stroke", this.stroke); this.element.setAttribute("stroke-width", this.strokeWidth); for (var i = 0; i < 3; i++) { this.ctrlPoints.push(document.createElementNS(svg.namespace, "circle")); svg.element.appendChild(this.ctrlPoints[i]); this.ctrlPoints[i].setAttribute("fill", this.fill); this.ctrlPoints[i].setAttribute("stroke", 'red'); this.ctrlPoints[i].setAttribute("stroke-width", 1); this.anchors.push(document.createElementNS(svg.namespace, "line")); svg.element.appendChild(this.anchors[i]); this.anchors[i].setAttribute("stroke-width", 1); this.anchors[i].setAttribute("stroke", this.stroke); this.anchors[i].setAttribute("stroke-dasharray", "3,2"); } this.draw(); } Teardrop.prototype.draw = function() { this.radius = this.width / 2; path = [ "M", this.x, ",", this.y, "C", this.x, ",", this.yCP1, " ", this.x + this.width / 2, ",", this.yCP2, " ", this.x + this.width / 2, ",", this.y + this.triangleHeight, "A", this.radius, ",", this.radius, ",", "0 0,1,", this.x - this.width / 2, ",", this.y + this.triangleHeight, "C", this.x - this.width / 2, ",", this.yCP2, " ", this.x, ",", this.yCP1, " ", this.x, ",", this.y ]; this.element.setAttribute("d", path.join("")); cpCoords = []; cpCoords[0] = [this.x, this.yCP1]; cpCoords[1] = [this.x - this.width / 2, this.yCP2]; cpCoords[2] = [this.x + this.width / 2, this.yCP2]; anchorCoords = []; anchorCoords[0] = [this.x, this.y]; anchorCoords[1] = [this.x - this.width / 2, this.y + this.triangleHeight]; anchorCoords[2] = [this.x + this.width / 2, this.y + this.triangleHeight]; for (var i = 0; i < 3; i++) { this.ctrlPoints[i].setAttribute("cx", cpCoords[i][0]); this.ctrlPoints[i].setAttribute("cy", cpCoords[i][1]); this.anchors[i].setAttribute("x1", cpCoords[i][0]); this.anchors[i].setAttribute("x2", anchorCoords[i][0]); this.anchors[i].setAttribute("y1", cpCoords[i][1]); this.anchors[i].setAttribute("y2", anchorCoords[i][1]); if (this.showCtrlPoints) { this.ctrlPoints[i].setAttribute("r", 2); this.anchors[i].setAttribute("stroke-width", 1); } else { this.ctrlPoints[i].setAttribute("r", 0); this.anchors[i].setAttribute("stroke-width", 0); } } } var teardrop = new Teardrop(); gui.add(teardrop, 'triangleHeight', 0, svg.height * 0.75); gui.add(teardrop, 'width', 0, 200); gui.add(teardrop, 'yCP1', 0, svg.height); gui.add(teardrop, 'yCP2', 0, svg.height); gui.add(teardrop, 'showCtrlPoints', 0, svg.height); for (var i in gui.__controllers) { gui.__controllers[i].onChange(function() { teardrop.draw(); }); } html, body { height: 100%; } svg { display: block; margin: 0 auto; background: url('http://unitedshapes.com/images/graph-paper/graph-paper.png'); } <script src="//cdnjs.cloudflare.com/ajax/libs/dat-gui/0.5/dat.gui.min.js"></script> <svg width='400px' height='400px'></svg>

免责声明上述钢笔不是我写的，只是来源。

CSS版本

虽然这还远远没有完成，但您还可以使用CSS生成这个形状。

.tear{ height:200px; width:200px; background: linear-gradient(to bottom, rgba(0,0,0,0) 0%,rgba(0,0,0,0) 29%,rgba(0,0,0,1) 30%,rgba(0,0,0,1) 100%); border-radius:50%; margin:120px; position:relative; } .tear:before{ content:""; position:absolute; top:-70%;left:0%; height:100%;width:50%; background: radial-gradient(ellipse at -50% -50%, rgba(0,0,0,0) 0%,rgba(0,0,0,0) 75%,rgba(0,0,0,1) 76%,rgba(0,0,0,1) 100%); } .tear:after{ content:""; position:absolute; top:-70%;left:50%; height:100%;width:50%; background: radial-gradient(ellipse at 150% -50%, rgba(0,0,0,0) 0%,rgba(0,0,0,0) 75%,rgba(0,0,0,1) 76%,rgba(0,0,0,1) 100%); } <div class="tear"></div>

SVG版本

我应该知道SVG应该在这个答案的顶部，但是，我喜欢挑战，所以这里是SVG的一个尝试。

svg { height: 300px; } svg path { fill: tomato; } <svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" version="1.1" viewBox="0 0 100 100"> <path d="M49.015,0.803 c-0.133-1.071-1.896-1.071-2.029,0 C42.57,36.344,20,43.666,20,68.367 C20,83.627,32.816,96,48,96 s28-12.373,28-27.633 C76,43.666,53.43,36.344,49.015,0.803z M44.751,40.09 c-0.297,1.095-0.615,2.223-0.942,3.386 c-2.007,7.123-4.281,15.195-4.281,24.537 c0,5.055-2.988,6.854-5.784,6.854 c-3.189,0-5.782-2.616-5.782-5.831 c0-11.034,5.315-18.243,10.005-24.604 c1.469-1.991,2.855-3.873,3.983-5.749 c0.516-0.856,1.903-0.82,2.533,0.029 C44.781,39.116,44.879,39.619,44.751,40.09z"/> </svg>

改变路径值，你将能够改变你的泪滴设计的形状。

使用SVG很容易做到这一点，只需使用一个图像转换资源，如http://image.online-convert.com/convert-to-svg，它被用来创建以下内容:

<?xml version="1.0" standalone="no"?> <!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 20010904//EN" "http://www.w3.org/TR/2001/REC-SVG-20010904/DTD/svg10.dtd"> <svg version="1.0" xmlns="http://www.w3.org/2000/svg" width="213.000000pt" height="300.000000pt" viewBox="0 0 213.000000 300.000000" preserveAspectRatio="xMidYMid meet"> <metadata> Created by potrace 1.12, written by Peter Selinger 2001-2015 </metadata> <g transform="translate(0.000000,300.000000) scale(0.100000,-0.100000)" fill="#000000" stroke="none"> <path d="M1035 2944 c-143 -250 -231 -380 -508 -752 -347 -465 -432 -616 -493 -882 -91 -394 10 -753 285 -1013 508 -479 1334 -361 1677 240 126 221 165 494 105 726 -66 254 -178 452 -609 1076 -96 140 -226 335 -288 435 -155 249 -135 229 -169 170z m85 -212 c40 -69 192 -298 543 -818 268 -396 354 -593 364 -835 12 -281 -82 -509 -296 -714 -103 -99 -236 -173 -396 -221 -82 -25 -105 -27 -260 -28 -148 -1 -181 2 -255 22 -348 96 -611 357 -691 689 -41 167 -25 392 41 587 62 185 154 334 444 716 177 235 320 444 402 592 27 49 51 88 54 88 3 0 25 -35 50 -78z"/> </g> </svg>

基本这个特性

你可以在CSS中使用border-radius'和transforms相对容易地做到这一点。你的CSS有点过时了。

.tear { 宽度:50 px; 高度:50 px; 边界半径:0 50% 50% 50% 50%; 边框:3px纯黑色; 变换:旋转(45度); margin-top: 20 px; ｝ < div class = "扯" > < / div >

先进的这个特性

这将非常类似于上面的，但给它更多的形状。

.tear { 宽度:50 px; 高度:50 px; 边界半径:80% 0 55% 50% / 55% 0 80% 50%; 边框:3px纯黑色; 变换:旋转(-45度); margin-top: 20 px; ｝ < div class = "扯" > < / div >

我个人会使用SVG。您可以在大多数矢量图形软件中创建svg。我建议:

之 草图 Adobe Illustrator

我在下面做了一个，这是在Illustrator中绘制你的形状。

<svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px" width="223.14px" height="319.008px" viewBox="0 0 223.14 319.008" enable-background="new 0 0 223.14 319.008" xml:space="preserve"> <path fill="none" stroke="#000000" stroke-width="12" stroke-miterlimit="10" d="M111.57,13.291c0,0,57.179,86.984,72.719,108.819 c30.359,42.66,41.005,114.694,1.626,154.074c-20.464,20.463-47.533,30.293-74.344,29.488h-0.002 c-26.811,0.805-53.88-9.025-74.344-29.488C-2.154,236.804,8.492,164.77,38.851,122.11C54.391,100.275,111.57,13.291,111.57,13.291z" /> </svg>