CSS 常用样式集

发布于 2024-09-03 19:42:19 字数 14142 浏览 15 评论 0

1.滚动条修改

/*滚动条宽 长,滚动条整体部分,其中的属性有 width,height,background,border 等。*/
需滚动的元素::-webkit-scrollbar{
    width:0; /* 0 为隐藏,有宽度后可设置以下属性*/
}
/*滚动条的滑轨背景颜色,可以用 display:none 让其不显示,也可以添加背景图片,颜色改变显示效果。*/
需滚动的元素::-webkit-scrollbar-track{
    background-color: #f5f5f5;
    -webkit-box-shadow:inset 0 0 3px rgba(0,0,0,0.1);
    border-radius:5px;
}
/* 滑块颜色 */
需滚动的元素::-webkit-scrollbar-thumb{
    background-color: rgba(0, 0, 0, 0.2);
    border-radius: 5px;
}
/*滚动条两端的按钮。可以用 display:none 让其不显示,也可以添加背景图片,颜色改变显示效果。*/
需滚动的元素::-webkit-scrollbar-button{
    background-color: #eee;
    display: none;
}
/* 横向滚动条和纵向滚动条相交处尖角的颜色 */
需滚动的元素::-webkit-scrollbar-corner{
    background-color: black;
}

隐藏 div 元素的滚动条

div::-webkit-scrollbar {
    display: none;
}
  • div::-webkit-scrollbar 滚动条整体部分
  • div::-webkit-scrollbar-thumb 滚动条里面的小方块,能向上向下移动(或往左往右移动,取决于是垂直滚动条还是水平滚动条)
  • div::-webkit-scrollbar-track 滚动条的轨道
  • div::-webkit-scrollbar-button 滚动条的轨道的两端按钮,允许通过点击微调小方块的位置。
  • div::-webkit-scrollbar-track-piece 内层轨道,滚动条中间部分
  • div::-webkit-scrollbar-corner 边角,即两个滚动条的交汇处
  • div::-webkit-resizer 两个滚动条的交汇处上用于通过拖动调整元素大小的小控件

注意此方案有兼容性问题,一般需要隐藏滚动条时我都是用一个色块通过定位盖上去,或者将子级元素调大,父级元素使用 overflow-hidden 截掉滚动条部分。暴力且直接。

2.修改 input 的 placeholder

::-webkit-input-placeholder { /* WebKit, Blink, Edge */
    color:    #909;
}
:-moz-placeholder { /* Mozilla Firefox 4 to 18 */
   color:    #909;
   opacity:  1;
}
:-moz-placeholder { /* Mozilla Firefox 19+ */
   color:    #909;
   opacity:  1;
}
:-ms-input-placeholder { /* Internet Explorer 10-11 */
   color:    #909;
}
::-ms-input-placeholder { /* Microsoft Edge */
   color:    #909;
}

3.去掉input[type="number"]的默认样式

// &::-webkit-outer-spin-button,
// &::-webkit-inner-spin-button {
    //   -webkit-appearance: none !important;
    // }

// input[type="number"] {
    //   -moz-appearance: textfield;
    // }

4.修改 checkbox 默认样式

<input type="checkbox" id="checkbox_sel" class="selectBetting" />
<label for="checkbox_sel" class=""></label>
.selectBetting{ 
  display: none; 
} 
.selectBetting + label { 
  background: url(../images/checkbox.png) no-repeat;
  width: 64px;
  height: 64px;
  display: inline-block; 
  float: left;
  cursor: pointer;
}  
.selectBetting:checked + label { 
  background: url(../images/checkbox.png) no-repeat;
} 
.selectBetting:checked + label::after { 
  content: '√';  
  float: left;
  font-family: "customfont";
  color: #6be9ff; 
  width: 100%; 
  text-align: center; 
  font-size: 32px;
  padding: 10px 0 0 0px;
  vertical-align: text-top; 
}

5.文本超长

单行文本 使用单行省略

width: 200px;
white-space: nowrap;
overflow: hidden;
text-overflow: ellipsis;

多行文本的超长省略

width: 200px;
overflow : hidden;
text-overflow: ellipsis;
display: -webkit-box;
-webkit-line-clamp: 2; /*两行*/
-webkit-box-orient: vertical;

6. 将文本内容分为多列并添加边框

p {
    columns: 3;
    column-rule: solid 2px #222; /*类似 border-right 作用*/
}

7. li 项旁边的默认小圆圈称为 marker

li::marker {
    color: #ccc;
}

8.input 输入框聚焦时,输入框占位符内容以动画形式移动到左上角作为标题

<div class="input-box"> 
    <input class="input-control input-outline" placeholder="账号">
    <label class="input-label">账号</label>
</div>

首先让浏览器默认的 placeholder 效果不可见

.input-control:placeholder-shown::placeholder { 
    color: transparent; 
}

使用 .input-label 元素代替 input 的占位符

.input-box{
  position: relative;
}
.input-label {
  position: absolute;
  left: 16px; top: 14px;
  pointer-events: none;
}

最后在输入框聚焦以及占位符不显示的时候对 <label> 元素进行重定位,效果是缩小并移动到上方

.input-control:not(:placeholder-shown) ~ .input-label,
.input-control:focus ~ .input-label {
  color: #2486ff;
  transform: scale(0.75) translate(-2px, -32px);
}

9. 彩色粉笔字

<head>
    <link href="https://fonts.googleapis.com/css?family=Cabin+Sketch:700&display=swap" rel="stylesheet">
</head>
<body>
    <div class="text-effect">
        <span>B</span><span>e</span><span>s</span><span>t</span>
        <span>J</span><span>Q</span><span>u</span><span>e</span>        <span>r</span><span>y</span>
    </div>
</body>
.text-effect{
    color: #ffff00;
    font-family: 'Cabin Sketch', cursive;
    font-size: 100px;
    text-align: center;
    text-transform: uppercase;
    margin: 0 auto;
    position: relative;
}
.text-effect span{
    display: inline-block;
    animation: animate 0.5s linear infinite both;
}
.text-effect span:nth-child(1),
.text-effect span:nth-child(4),
.text-effect span:nth-child(7),
.text-effect span:nth-child(10){
   color: #4cd137;
}
.text-effect span:nth-child(2),
.text-effect span:nth-child(5),
.text-effect span:nth-child(8){
   color: #ff0000;
}
@keyframes animate{
    0%, 50%, 100%{ transform: rotate(0deg) scale(1); }
    25%{ transform: rotate(4deg) scale(0.98); }
    75%{ transform: rotate(-4deg) scale(1.02); }
}

10. Affix 固钉 sticky position

<div class="static">Static</div>
<div class="sticky">Sticky</div>
.sticky {
  position: sticky;
  top: 0;
  width: 100%;

  padding: 1em 0;
  background-color: #149bdf;
  background-image: linear-gradient(-45deg, rgba(255, 255, 255, 0.15) 25%, transparent 25%, transparent 50%, rgba(255, 255, 255, 0.15) 50%, rgba(255, 255, 255, 0.15) 75%, transparent 75%, transparent);
  background-size: 100px 100px;
  color: white;
  text-align: center;
}

.fixed {
  position: fixed;
}

.static {
  padding: 5em 0;
  background: #1085bc;
  color: white;
  text-align: center;
}

:root {
  height: 1000%;
  font-family: sans-serif;
}
var sticky = document.querySelector('.sticky');

if (sticky.style.position !== 'sticky') {
  var stickyTop = sticky.offsetTop;

  document.addEventListener('scroll', function () {
    window.scrollY >= stickyTop ?
      sticky.classList.add('fixed') :
      sticky.classList.remove('fixed');
  });
}

11. Clip-path 属性添加 shadow

<!DOCTYPE html>
<html>
  <body>
    <div class="container">
      <div class="shape"></div>
    </div>
  </body>
  <style>

    .container{
      filter: drop-shadow(0px 10px 5px rgba(0,0,0,0.5));
    }
    .shape{
      -webkit-clip-path: polygon(50% 0%, 0% 100%, 100% 100%);
      clip-path: polygon(50% 0%, 0% 100%, 100% 100%);
      background:red;
      width:100px;
      height:100px;     
    }
  </style>
</html>

12. 修改 div 为空时的 placeholder

div{
  min-height: 50px;
  background: #eeeeee45;
  border-radius: 2px;
  border: 2px dashed #eeeeee;
  position: relative;
  &:empty::before {
    // content: attr(data-placeholder); 
    content: "[line " attr(data-placeholder) "]"; // 拼接字符串
    color: lightgrey;
    width: fit-content;
    display: inline-block;
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate3d(-50%, -50%, 0);
    font-size: 1rem;
    letter-spacing: 2px;
  }
}

13. 丝带

<div>
 <section>
  <h2><span>CSS3 丝带</span></h2>
  <div class="ribbon"><span class="ribbon1"><span>丝带效果 1</span></span></div>
  <div class="ribbon"><span class="ribbon2">丝<br>带<br>效<br>果<br>2</span></div>
  <div class="ribbon"><span class="ribbon3">丝带效果 3</span></div>
  <div class="ribbon"><span class="ribbon4">丝带效果 4</span></div>
  <div class="ribbon"><span class="ribbon5">丝带效果 5</span></div>
  <div class="ribbon"><div class="wrap"><span class="ribbon6">丝带效果 6</span></div></div>
 </section>
</div>

丝带 1

.ribbon1 {
    position: absolute;
    top: -6px;
    right: 10px;
}
.ribbon1:after {
    position: absolute;
    content: "";
    display: block;
    width: 0;
    height: 0;
    border-left: 53px solid transparent;
    border-right: 53px solid transparent;
    border-top: 10px solid #F8463F;
}
.ribbon1 span {
    position: relative;
    display: inline-block;
    text-align: center;
    background: #F8463F;
    font-size: 14px;
    line-height: 1;
    padding: 12px 8px 10px;
    border-top-right-radius: 8px;
    width: 90px;
}
.ribbon1 span:before, .ribbon1 span:after {
    position: absolute;
    content: "";
    display: block;
}
.ribbon1 span:before {
    background: #F8463F;
    height: 6px;
    width: 6px;
    left: -6px;
    top: 0;
}
.ribbon1 span:after {
    background: #C02031;
    height: 6px;
    width: 8px;
    border-radius: 8px 8px 0 0;
    left: -8px;
    top: 0;
}

丝带 2

.ribbon2 {
  display: inline-block;
  width: 60px;
  padding: 10px 0;
  background: #F47530;
  top: -6px;
  left: 25px;
  position: absolute;
  text-align: center;
  border-top-left-radius: 3px;
}
.ribbon2:before {
   height: 0;
   width: 0;
   border-bottom: 6px solid #8D5A20;
   border-right: 6px solid transparent;
   right: -6px;
   top: 0;
}
.ribbon2:before, .ribbon2:after {
    content: "";
    position: absolute;
}
.ribbon2:after {
    height: 0;
    width: 0;
    border-left: 30px solid #F47530;
    border-right: 30px solid #F47530;
    border-bottom: 30px solid transparent;
    bottom: -30px;
    left: 0;
}

丝带 3

.ribbon3 {
  display: inline-block;
  position: absolute;
  width: 150px;
  height: 50px;
  line-height: 50px;
  padding-left: 15px;
  background: #59324C;
  left: -8px;
  top: 20px
}
.ribbon3:before, .ribbon3:after {
    content: "";
    position: absolute;
}
.ribbon3:before {
  height: 0;
  width: 0;
  border-bottom: 8px solid black;
  border-left: 8px solid transparent;
  top: -8px;
  left: 0;
}
.ribbon3:after {
  height: 0;
  width: 0;
  border-top: 25px solid transparent;
  border-bottom: 25px solid transparent;
  border-left: 15px solid #59324C;
  right: -15px;
}

丝带 4

.ribbon4 {
    position: absolute;
    top: 15px;
    padding: 8px 10px;
    background: #00B3ED;
    box-shadow: -1px 2px 4px rgba(0,0,0,0.5);
  }
.ribbon4:before, .ribbon4:after {
    position: absolute;
    content: "";
    display: block;
}
.ribbon4:before {
    width: 7px;
    height: 100%;
    padding: 0 0 7px;
    top: 0;
    left: -7px;
    background: inherit;
    border-radius: 5px 0 0 5px;
}
.ribbon4:after {
    width: 5px;
    height: 5px;
    background: rgba(0,0,0,0.35);
    bottom: -5px;
    left: -5px;
    border-radius: 5px 0 0 5px;
 }

丝带 5

.ribbon5 {
  display: inline-block;
  width: calc(100% + 20px);
  height: 50px;
  line-height: 50px;
  text-align: center;
  margin-left: -10px;
  margin-right: -10px;
  background: #EDBA19;
  position: relative;
  top: 20px;
}
.ribbon5:before {
  content: "";
  position: absolute;
  height: 0;
  width: 0;
  border-top: 10px solid #cd8d11;
  border-left: 10px solid transparent;
  bottom: -10px;
  left: 0;
}
.ribbon5:after {
  content: "";
  position: absolute;
  height: 0;
  width: 0;
  border-top: 10px solid #cd8d11;
  border-right: 10px solid transparent;
  right: 0;
  bottom: -10px;
}

丝带 6

.wrap {
  width: 100%;
  height: 188px;
  position: absolute;
  top: -8px;
  left: 8px;
  overflow: hidden;
}
.wrap:before {
    content: "";
    display: block;
    border-radius: 8px 8px 0px 0px;
    width: 40px;
    height: 8px;
    position: absolute;
    right: 100px;
    background: #4D6530;
}
.wrap:after {
    content: "";
    display: block;
    border-radius: 0px 8px 8px 0px;
    width: 8px;
    height: 40px;
    position: absolute;
    right: 0px;
    top: 100px;
    background: #4D6530;
}
.ribbon6 {
  display: inline-block;
  text-align: center;
  width: 200px;
  height: 40px;
  line-height: 40px;
  position: absolute;
  top: 30px;
  right: -50px;
  z-index: 2;
  overflow: hidden;
  transform: rotate(45deg);
  -ms-transform: rotate(45deg);
  -moz-transform: rotate(45deg);
  -webkit-transform: rotate(45deg);
  -o-transform: rotate(45deg);
  border: 1px dashed;
  box-shadow:0 0 0 3px #57DD43,  0px 21px 5px -18px rgba(0,0,0,0.6);
 background: #57DD43;
}

14. 三角形角标

元素宽高设置为 0,通过 border 属性来设置,让其它三个方向的 border 颜色为透明或者和背景色保持一致,剩余一条 border 的颜色设置为需要的颜色。

div {
    width: 0;
    height: 0;
    border: 5px solid transparent;
    border-top-color: red;
}

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