Maison >interface Web >tutoriel CSS >Compréhension approfondie et absolue du CSS
Compréhension approfondie et absolue du CSS
- 高洛峰original
- 2017-02-09 16:30:522025parcourir
1. Absolute et float ont les mêmes caractéristiques, d'enveloppement et de destructivité
1. Absolute et float sont similaires (voir la démo ci-dessous, si l'image est dans le coin supérieur gauche, alors utilisez float et Absolute. sera le même)
1 <!doctype html> 2 <html> 3 <head> 4 <meta charset="utf-8"> 5 <meta name="viewport" content="width=device-width"> 6 <title>absolute和float高尔基</title> 7 <style> 8 body { 9 background-color: #B0DEF5; 10 font-size: 14px; font-family: arial; 11 color: #444; 12 } 13 a { 14 color: #0078b6; 15 text-decoration: none; 16 } 17 a:hover { 18 text-decoration: underline; 19 } 20 em { 21 font-style: normal; 22 color: #aeaeae; 23 margin: 0 5px; 24 } 25 svg { 26 position: absolute; 27 } 28 .container { 29 width: 560px; height: -webkit-calc(100vh - 16px); height: calc(100vh - 16px); 30 margin-left: auto; margin-right: auto; 31 background-color: #fff; 32 } 33 .list { 34 padding: 20px; 35 position: relative; 36 } 37 .space { 38 padding-left: 60px; 39 line-height: 22px; 40 } 41 .space img { 42 vertical-align: text-bottom; 43 } 44 .info { 45 font-size: 12px; 46 overflow: hidden; 47 color: #808080; 48 } 49 .from { 50 float: left; 51 } 52 .from a { 53 color: #9abbc8; 54 } 55 p { 56 margin: 6px 0; 57 } 58 .operate { 59 float: right; 60 } 61 .operate img { 62 vertical-align: text-bottom; 63 margin-right: 3px; 64 } 65 .test { 66 position: relative; 67 font-size: 18px; font-family: 'microsoft yahei'; 68 } 69 .test p { 70 width: 200px; 71 margin-left: auto; margin-right: auto; 72 padding: 5px; 73 background-color: #f0f0f0; 74 } 75 .test input { 76 width: 20px; height: 20px; 77 vertical-align: -4px; 78 } 79 </style> 80 </head> 81 82 <body> 83 <p class="container"> 84 <svg xmlns="http://www.w3.org/2000/svg" width="520" height="360"> 85 <path d="M45 80C45 280,45 320,165 300" stroke-width="1" stroke="#444" fill="none"></path> 86 </svg> 87 <p class="list"> 88 <a href="#" id="avatar" class="avatar" style="float: left;"><img src="http://img.mukewang.com/54447ac70001f5cc00500050.jpg"></a> 89 <p class="space"> 90 <a href="//weibo.com/mukewang" target="_blank" title="慕课网">慕课网</a> 91 <img src="http://img.mukewang.com/54447b1a0001750000160013.png"> 92 <a href="http://huati.weibo.com/k/%E6%85%95%E8%AF%BE%E7%BD%91%E6%B4%BB%E5%8A%A8?from=501">#慕课网活动#</a>【全民晒课ing，火速赢取IT图书】无论你是慕课网的“资深粉丝”，还是刚加入的新同学，在慕课网活动帖：<a href="http://www.imooc.com/wenda/detail/30394">http://www.php.cn/</a> 写下你在慕课网所学习的任意一门课程，并附上课程的学习心得，就有机会赢得精品IT好书。<img src="http://img.mukewang.com/54447cc700010dbf00220022.gif">这事很急哒，仅有2天呦。在<a href="http://huati.weibo.com/k/%E7%A8%8B%E5%BA%8F%E5%91%98%E8%8A%82?from=501">#程序员节#</a>送给自己一份礼物吧！<img src="http://img.mukewang.com/54447af90001ab1c00010001.gif"> 93 <p><img src="http://img.mukewang.com/54447aea0001f43301200084.jpg"></p> 94 <p class="info"> 95 <span class="from"> 96 <a href="#">9月13日 10:27</a> 97 <em>来自</em><a href="#">微博 weibo.com</a> 98 </span> 99 <span class="operate">100 <a href="javascript:" title="赞"><img src="http://img.mukewang.com/54447c350001055b00120013.png">(4)</a><em>|</em>101 <a href="javascript:">转发(5)</a><em>|</em>102 <a href="javascript:">收藏</a><em>|</em>103 <a href="javascript:">评论(2)</a>104 </span>105 </p>106 </p>107 </p>108 <p class="test">109 <p><input type="radio" name="layout" id="float" checked><label for="float">float: left;</label></p>110 <p><input type="radio" name="layout" id="absolute"><label for="absolute">position: absolute;</label></p>111 </p>112 </p>113 <script>114 var eleAvatar = document.getElementById("avatar"),115 eleFloat = document.getElementById("float"),116 eleAbsolute = document.getElementById("absolute");117 118 // SVG路径以及相关动画119 var elePath = document.querySelector("path"), timerPath = null;
120 var funPathMove = function(end) {121 clearTimeout(timerPath);122 var d = elePath.getAttribute("d"), arrD = d.split(" ");123 // 动画起始值124 var start = arrD.slice(-1) * 1;125 if (start == end) return;126 // 速率127 var rate = 5, current = start;128 console.log(arrD);129 var step = function() {130 if (Math.abs(end - current) < 1) {131 current = end;132 } else {133 current += (end - current) / 5;134 timerPath = setTimeout(step, 30);135 }136 // 替换最后一个值137 arrD.splice(-1, 1, current);138 // 曲线走起139 elePath.setAttribute("d", arrD.join(" "));140 };141 step();142 };143 144 if (eleAvatar && eleFloat && eleAbsolute) {145 var attrFloat = eleAvatar.style.cssFloat != undefined? "cssFloat": "styleFloat";146 eleFloat.onclick = function() {147 eleAvatar.style.position = "";148 eleAvatar.style[attrFloat] = "left";149 elePath && funPathMove(300);150 };151 eleAbsolute.onclick = function() {152 eleAvatar.style[attrFloat] = "";153 eleAvatar.style.position = "absolute";154 elePath && funPathMove(340);155 };156 }157 </script>158 </body>159 </html>
Voir le code
2. 🎜>
1 <!doctype html> 2 <html> 3 <head> 4 <meta charset="utf-8"> 5 <meta name="viewport" content="width=device-width"> 6 <title>absolute的破坏性</title> 7 <style> 8 .box { 9 padding: 10px;10 background-color: #f0f0f0; 11 }12 input {13 position: absolute; top: 234px; 14 width: 160px; height: 32px;15 font-size: 100%;16 }17 </style>18 </head>19 20 <body>21 <p class="box"><img id="image" src="http://img.mukewang.com/54447b06000171a002560191.jpg" width="256" height="191"></p>22 <input id="button" type="button" value="图片absolute化">23 <script>24 var eleImg = document.getElementById("image"), eleBtn = document.getElementById("button");25 if (eleImg != null && eleBtn != null) {26 eleBtn.onclick = function() {27 if (this.absolute) {28 eleImg.style.position = "";29 this.value = "图片absolute化";30 this.absolute = false;31 } else {32 eleImg.style.position = "absolute";33 this.value = "图片去absolute";34 this.absolute = true;35 }36 };37 }38 </script>39 </body>40 </html>
Afficher le code
3. 🎜> Afficher le code
2. L'indépendance de l'absolu Lors de l'utilisation de l'absolu, il n'est pas nécessaire de l'utiliser avec le relatif. Il peut être utilisé indépendamment, et plus il est indépendant, plus il est capable. Plus 1 <!doctype html> 2 <html> 3 <head> 4 <meta charset="utf-8"> 5 <meta name="viewport" content="width=device-width"> 6 <title>absolute的包裹性</title> 7 <style> 8 .box { 9 padding: 10px;10 background-color: #f0f0f0; 11 }12 input {13 position: absolute; top: 234px; 14 width: 160px; height: 32px;15 font-size: 100%;16 }17 </style>18 </head>19 20 <body>21 <p id="box" class="box"><img src="http://img.mukewang.com/54447b06000171a002560191.jpg" width="256" height="191"></p>22 <input id="button" type="button" value="容器absolute化">23 <script>24 var eleBox = document.getElementById("box"), eleBtn = document.getElementById("button");25 if (eleBox != null && eleBtn != null) {26 eleBtn.onclick = function() {27 if (this.absolute) {28 eleBox.style.position = "";29 this.value = "容器absolute化";30 this.absolute = false;31 } else {32 eleBox.style.position = "absolute";33 this.value = "容器去absolute";34 this.absolute = true;35 }36 };37 }38 </script>39 </body>40 </html>
3. Caractéristiques absolues
1. Supprimer le flottant
Afficher le code
2. Suivi de localisation 1 <!doctype html> 2 <html> 3 <head> 4 <meta charset="utf-8"> 5 <title>折翼天使表现特性一：去浮动</title> 6 <style> 7 input[type=button] { 8 height: 32px; 9 font-size: 100%; 10 }11 </style>12 </head>13 14 <body>15 <img src="http://img.mukewang.com/54447b06000171a002560191.jpg">16 <img src="http://img.mukewang.com/54447f4a0001eb7d01910256.jpg">17 <img src="http://img.mukewang.com/54447f550001ccb002560191.jpg">18 <p><input type="button" id="float" value="点击第2张图片应用float:left"></p>19 <p><input type="button" id="button" value="点击第2张图片应用position:absolute"></p>20 <script>21 var flbtn = document.getElementById("float"),22 button = document.getElementById("button"),23 image2 = document.getElementsByTagName("img")[1];24 if (flbtn && button && image2) {25 var value_init = button.value;26 button.onclick = function() {27 if (this.value == value_init) {28 image2.style.position = "absolute";29 this.value = "撤销";30 } else {31 image2.style.position = "";32 this.value = value_init;33 }34 };35 36 flbtn.onclick = function() {37 image2.style["cssFloat" in this.style? "cssFloat": "styleFloat"] = "left";38 };39 }40 </script>41 </body>42 </html>
Afficher le code
3. Au-delà du débordement 1 <!doctype html> 2 <html> 3 <head> 4 <meta charset="utf-8"> 5 <title>折翼天使表现特性二：位置跟随</title> 6 <style> 7 input[type=button] { 8 height: 32px; 9 font-size: 100%;10 }11 p { margin-left: 260px; }12 img + p { margin-top: 60px; }13 </style>14 </head>15 16 <body>17 <img src="http://img.mukewang.com/54447b06000171a002560191.jpg">18 <p><img src="http://img.mukewang.com/54447f4a0001eb7d01910256.jpg"></p>19 <img src="http://img.mukewang.com/54447f550001ccb002560191.jpg">20 <p><input type="button" id="block" value="点击第2张图片应用display:block"></p>21 <p><input type="button" id="button" value="点击第2张图片应用position:absolute变天使"></p>22 <script>23 var block = document.getElementById("block"),24 button = document.getElementById("button"),25 image2 = document.getElementsByTagName("img")[1];26 if (block && button && image2) {27 var value_init_button = button.value;28 button.onclick = function() {29 if (this.value == value_init_button) {30 image2.style.position = "absolute";31 this.value = "撤销";32 } else {33 image2.style.position = "";34 this.value = value_init_button;35 }36 };37 38 var value_init_block = block.value;39 block.onclick = function() {40 if (this.value == value_init_block) {41 image2.style.display = "block";42 this.value = "撤销";43 } else {44 image2.style.display = "";45 this.value = value_init_block;46 }
47 };48 }49 </script>50 </body>51 </html>
Afficher le code
Lorsque vous faites glisser la barre de défilement, le bouton de fermeture ne bouge pas car l'absolu est défini 4. Utilisation réelle de l'absolu 1 <!doctype html> 2 <html> 3 <head> 4 <meta charset="utf-8"> 5 <title>超越overflow</title> 6 <style> 7 body { 8 background-color: #bbb; 9 }10 .scroll {11 width: 500px; height: 300px;12 margin: 200px auto 0;13 margin-top: -webkit-calc(50vh - 150px);14 margin-top: calc(50vh - 150px);15 border: 1px solid #ccc;16 border-radius: 3px;17 box-shadow: 0 0 3px rgba(0,0,0,.35);18 background-color: #fff;19 overflow: auto;20 }21 .close {22 position: absolute;23 width: 34px; height: 34px; 24 margin: -17px 0 0 483px;25 background: url(http://www.php.cn/) no-repeat;26 }27 .close:hover {28 background-position: 0 -41px; 29 }30 img {31 display: block;32 margin: 10px;33 }34 </style>35 </head>36 37 <body>38 <p class="scroll">39 <a href="javascript:" class="close" title="关闭"></a>40 <img src="http://img.mukewang.com/54447b06000171a002560191.jpg">41 <img src="http://img.mukewang.com/54447f550001ccb002560191.jpg">42 </p>43 </body>44 </html>
1. l'image ci-dessus
Hot, recommandation et VIP sont tous implémentés en utilisant l'absolu et le relatif
Afficher le code
n'est pas utilisé
2. Le positionnement de la liste déroulante 1 <!doctype html> 2 <html> 3 <head> 4 <meta charset="utf-8"> 5 <title>图标定位二三事</title> 6 <style> 7 body { font: 14px/1.4 "Microsoft YaHei"; background-color: #EDEFF0; } 8 body, h3, h5 { margin: 0; } 9 img { border: 0 none; vertical-align: bottom; }10 .l { float: left; }.r { float: right; }11 .constr { width: 1200px; margin-left: auto; margin-right: auto; }12 .header { background-color: #2A2C2E; }13 .nav { height: 60px; }14 .nav-list { float: left; font-size: 14px; font-weight: 400; }15 .nav-a { display: inline-block; line-height: 20px; padding: 20px 35px; color: #B5BDC0; text-decoration: none; }16 .nav-a:hover { color: #fff; }17 18 .course { padding-top: 10px; }19 .course-list { float: left; width: 280px; height: 240px; margin: 5px 10px 15px; border-radius: 0 0 1px 1px; background-color: #F7FAF9; background-color: rgba(255,255,255,1); box-shadow: 0 1px 2px #c5c5c5; text-decoration: none; }20 .course-list-img { background-color: #6396F1; }21 .course-list-h { line-height: 50px; font-size: 14px; font-weight: 400; color: #363d40; text-align: center; }22 .course-list-tips { margin: 0 14px; font-size: 12px; color: #b4bbbf; overflow: hidden; }23 24 .icon-hot { position: absolute; width: 28px; height: 11px; margin: -6px 0 0 2px; background: url(http://www.php.cn/); }25 .icon-recom { position: absolute; line-height: 20px; padding: 0 5px; background-color: #f60; color: #fff; font-size: 12px; }26 .icon-vip { position: absolute; width: 36px; height: 36px; margin-left: -36px; background: url(http://www.php.cn/); text-indent: -9em; overflow: hidden; }27 </style>28 </head>29 30 <body>31 <p class="header">32 <p class="constr">33 <p class="nav">34 <h3 class="nav-list">35 <a href="http://www.imooc.com/course/list" class="nav-a">课程</a>36 </h3>37 <h3 class="nav-list">38 <a href="http://www.imooc.com/wenda" class="nav-a">问答</a>39 </h3>40 <h3 class="nav-list">41 <a href="http://www.imooc.com/seek/index" class="nav-a">42 求课<i class="icon-hot"></i>43 </a>44 </h3>45 </p>46 </p>47 </p>48 49 <p class="main">50 <p class="constr">51 <p class="course">52 <a href="http://www.imooc.com/view/121" class="course-list">53 <p class="course-list-img">54 <span class="icon-recom">推荐</span>55 <img width="280" height="160" alt="分享：CSS深入理解之float浮动" src="http://img.mukewang.com/53d74f960001ae9d06000338-300-170.jpg"><!--56 --><i class="icon-vip">vip</i>57 </p>58 <h5 class="course-list-h">分享：CSS深入理解之float浮动</h5>59 <p class="course-list-tips">60 <span class="l">已完结</span>61 <span class="r">3514人学习</span>62 </p>63 </a>64 </p>65 </p>66 </p>67 </body>68 </html>
utilise une valeur absolue sans dépendance. le positionnement, c'est-à-dire que seul l'absolu est utilisé et le relatif n'est pas utilisé
Afficher le code
1 <!doctype html> 2 <html> 3 <head> 4 <meta charset="utf-8"> 5 <title>下拉框定位二三事</title> 6 <style> 7 body { margin: 0; font: 14px/1.4 "Microsoft YaHei"; background-color: #EDEFF0; } 8 .constr { width: 1200px; max-width: 80%; margin-left: auto; margin-right: auto; padding-bottom: 300px; overflow: hidden; } 9 .course-sidebar { width: 262px; float: left; }10 .course-sidebar > p { border: 1px solid #e6e8e9; box-shadow: 0px 1px 2px #d5d7d8; background-color: #fff; }11 .course-sidebar-type { height: 380px; }12 .course-sidebar-search { margin-top: 20px; overflow: hidden; }13 .course-search-input { width: 200px; line-height: 18px; padding: 10px; margin: 0; border: 0 none; font-size: 12px; font-family: inherit; float: left; }14 .course-sidebar-search.focus { border-color: #2ea7e0; }15 .course-search-input:focus { outline: 0 none; }16 .course-search-input::-ms-clear { display: none; }17 .course-search-btn { width: 38px; height: 38px; float: right; background: url(http://www.php.cn/); text-indent: -9em; overflow: hidden; }18 .focus .course-search-btn { background-position: 0 -38px; }19 20 .course-sidebar-result { display: none; position: absolute; width: 260px; margin: 39px 0 0 -1px; padding-left: 0; list-style-type: none; border: 1px solid #e6e8e9; background-color: #fff; box-shadow: 0px 1px 2px #d5d7d8; font-size: 12px; }21 .course-sidebar-result > li { line-height: 30px; padding-left: 12px; }22 .course-sidebar-result > li:hover { background-color: #f9f9f9; }23 .course-sidebar-result a { display: block; color: #5e5e5e; text-decoration: none; }24 .course-sidebar-result a:hover { color: #000; }25 </style>26 </head>27 28 <body>29 <p class="constr">30 <p class="course-sidebar">31 <p class="course-sidebar-type"></p>32 <p class="course-sidebar-search">33 <ul id="result" class="course-sidebar-result">34 <li><a href="http://www.imooc.com/view/121">分享：CSS深入理解之float浮动</a></li>35 <li><a href="http://www.imooc.com/view/118">案例：CSS圆角进化论</a></li>36 <li><a href="http://www.imooc.com/view/93">案例：CSS Sprite雪碧图应用</a></li>37 <li><a href="http://www.imooc.com/view/77">案例：CSS3 3D 特效</a></li>38 <li><a href="http://www.imooc.com/view/57">案例：如何用CSS进行网页布局</a></li>39 </ul>40 <input class="course-search-input" placeholder="课程搜索">41 <a href="javascript:" class="course-search-btn">搜索</a>42 </p>43 </p>44 </p>45 <script>46 (function() {47 var input = document.getElementsByTagName("input")[0],48 result = document.getElementById("result");49 50 if (input && result) {51 input.onfocus = function() {52 this.parentNode.className = "course-sidebar-search focus";53 if (this.value != "") {54 // show datalist55 result.style.display = "block";56 }57 };58 input.onblur = function() {59 if (this.value == "") {60 this.parentNode.className = "course-sidebar-search";61 }62 // hide datalist63 result.style.display = "none";64 };65 66 // IE7 that wrap a p for avoid bad effect from float67 if (!document.querySelector) {68 var p = document.createElement("p");69 input.parentNode.insertBefore(p, input);70 p.appendChild(result);71 }72 // events of datalist73 if ("oninput" in input) {74 input.addEventListener("input", function() {75 if (this.value.trim() != "") {76 result.style.display = "block";77 } else {78 result.style.display = "none";79 }80 });81 } else {82 // IE6-IE883 input.onpropertychange = function(event) {84 event = event || window.event;85 if (event.propertyName == "value" && /focus/.test(this.parentNode.className)) {86 if (this.value != "") {87 result.style.display = "block";88 } else {89 result.style.display = "none";90 }91 }92 }93 }94 }95 96 })();97 </script>98 </body>99 </html>
Réalisez le centrage de l'image et une idée de positionnement des bords, vous pouvez utiliser un absolu illimité, qui utilise la capacité de suivi de le dans le code, c'est très important
Voir le code
4. Alignement et positionnement de l'image du fichier 1 <!doctype html> 2 <html> 3 <head> 4 <meta charset="utf-8"> 5 <title>居中、边缘定位二三事</title> 6 <style> 7 body { margin: 0; font: 14px/1.4 "Microsoft YaHei"; background-color: #EDEFF0; } 8 .constr { width: 1200px; max-width: 80%; margin-left: auto; margin-right: auto; } 9 .course-content { float: right; position: relative; width: 920px; min-height: 1200px; background: #fff; }10 .course-list-x { padding: 20px 10px; overflow: hidden; }11 .course-list { float: left; width: 280px; height: 240px; margin: 5px 10px 15px; border-radius: 0 0 1px 1px; background-color: #F7FAF9; background-color: rgba(255,255,255,1); box-shadow: 0 1px 2px #c5c5c5; text-decoration: none; }12 13 .goto_top_diaocha, .goto_top_app, .goto_top_feed { display: block; width: 48px; height: 48px; margin-top: 10px; background: url(http://www.php.cn/) no-repeat; }14 .goto_top_diaocha { background-position: -48px 0; }15 .goto_top_diaocha:hover { background-position: -48px -50px; }16 .goto_top_app { background-position: -96px 0; }17 .goto_top_app:hover { background-position: -96px -50px; }18 .goto_top_feed { background-position: -144px 0; }19 .goto_top_feed:hover { background-position: -144px -50px; }20 21 .course-loading-x { height: 0; margin-top: 20px; text-align: center; letter-spacing: -.25em; overflow: hidden; }22 .course-loading { position: absolute; margin-left: -26px; }23 24 .course-fixed-x { height: 0; text-align: right; overflow: hidden; }25 .course-fixed { display: inline; position: fixed; margin-left: 20px; bottom: 100px; }26 </style>27 </head>28 29 <body>30 <p class="constr">31 <p class="course-content">32 <p class="course-list-x">33 <p class="course-list"></p>34 <p class="course-list"></p>35 <p class="course-list"></p>36 <p class="course-list"></p>37 <p class="course-list"></p>38 <p class="course-list"></p>39 </p>40 <p class="course-loading-x">41 <img src="http://img.mukewang.com/5453077400015bba00010001.gif" class="course-loading" alt="加载中...">42 </p>43 <p class="course-fixed-x">44 <p class="course-fixed">45 <a href="http://www.imooc.com/activity/diaocha" class="goto_top_diaocha"></a>46 <a href="http://www.imooc.com/mobile/app" class="goto_top_app"></a>47 <a href="http://www.imooc.com/user/feedback" class="goto_top_feed"></a>48 </p>49 </p>50 </p>51 </p>52 </body>53 </html>
Réel Dans le projet, certains endroits ont des étoiles et d'autres non. Si vous voulez avoir des problèmes avec le texte, vous pouvez. utilisez absoluPour l'icône devant la boîte aux lettres et le texte qui dépasse la boîte, vous pouvez utiliser absolu. L'absolu
Il fournit une nouvelle idée de mise en page
Afficher le code
4. L'absolu est séparé du flux de documents L'animation doit être utilisée sur l'absolu autant que possible, car l'absolu est séparé du flux de documents, de sorte que l'animation n'affectera pas les autres éléments 1 <!doctype html> 2 <html> 3 <head> 4 <meta charset="utf-8"> 5 <title>文本图标对齐与定位二三事</title> 6 <style> 7 body { margin: 0; font: 14px/1.4 "Microsoft YaHei"; background-color: #EDEFF0; } 8 a { color: #50B6E5; } 9 .constr { width: 1200px; margin-left: auto; margin-right: auto; }10 .regist-head { height: 60px; line-height: 60px; padding-left: 30px; background-color: #be3948; color: #fff; font-size: 18px; }11 .regist-body { min-height: 400px; padding: 100px 0; background-color: #fff; }12 .regist-main { width: 600px; margin-left: auto; margin-right: auto; }13 .regist-group { margin-top: 20px; overflow: hidden; }14 .regist-label { width: 70px; padding-top: 10px; float: left; }15 .regist-cell { display: table-cell; *display: inline-block; }16 .regist-input { height: 18px; line-height: 18px; width: 260px; padding: 10px 5px; margin: 0 10px 0 0; border: 1px solid #d0d6d9; vertical-align: top; }17 .regist-code-input { width: 130px; }18 .regist-btn { display: inline-block; width: 160px; line-height: 40px; background-color: #39b94e; color: #fff; text-align: center; text-decoration: none; }19 .regist-btn:hover { background-color: #33a646; }20 .icon-warn { display: inline-block; width: 20px; height: 21px; background: url(http://www.php.cn/) no-repeat center; }21 22 .regist-star { position: absolute; margin-left: -1em; font-family: simsun; color: #f30; }23 .regist-remark { position: absolute; line-height: 21px; padding-top: 9px; color: #666; }24 .regist-warn { padding-left: 20px; color: #be3948; }25 .regist-warn > .icon-warn { position: absolute; margin-left: -20px; }26 </style>27 </head>28 29 <body>30 <p class="constr">31 <p class="regist-head">注册</p>32 <p class="regist-body">33 <p class="regist-main">34 <p class="regist-group">35 <label class="regist-label"><span class="regist-star">*</span>登录邮箱</label>36 <p class="regist-cell">37 <input type="email" class="regist-input"><span class="regist-remark regist-warn">38 <i class="icon-warn"></i>邮箱格式不准确（演示）39 </span>40 </p>41 </p>42 <p class="regist-group">43 <label class="regist-label"><span class="regist-star">*</span>登录密码</label>44 <p class="regist-cell">45 <input type="password" class="regist-input"><span class="regist-remark">46 请输入6-16位密码，区分大小写，不能使用空格47 </span>48 </p>49 </p>50 <p class="regist-group">51 <label class="regist-label"><span class="regist-star">*</span>用户昵称</label>52 <p class="regist-cell">53 <input type="password" class="regist-input">54 </p>55 </p>56 <p class="regist-group">57 <label class="regist-label">手机号码</label>58 <p class="regist-cell">59 <input type="tel" class="regist-input">60 </p>61 </p>62 <p class="regist-group">63 <label class="regist-label"><span class="regist-star">*</span>验 证 码</label>64 <p class="regist-cell">65 <input class="regist-input regist-code-input"><img src="http://img.mukewang.com/545308540001678401500040.jpg">66 </p>67 </p>68 <p class="regist-group">69 <label class="regist-label"> </label>70 <p class="regist-cell">71 <input type="checkbox" checked><label>我已阅读并同意<a href="##">慕课协议</a>。</label>72 <p>73 <a href="javascript:" class="regist-btn">立即注册</a>74 </p>75 </p>76 </p>77 </p>78 </p>79 </p>80 </body>81 </html>
Pour une compréhension plus approfondie des articles liés à l'absolu CSS, veuillez prêter attention à le site PHP chinois ! Déclaration：
Le contenu de cet article est volontairement contribué par les internautes et les droits d'auteur appartiennent à l'auteur original. Ce site n'assume aucune responsabilité légale correspondante. Si vous trouvez un contenu suspecté de plagiat ou de contrefaçon, veuillez contacter admin@php.cn
Article précédent：effet de gigue d'image CSS3Article suivant：effet de gigue d'image CSS3