Web奇技淫巧

Web奇技淫巧

转载自 “ i_木木木木木 ” 的简书

一，文字超过隐藏变…

    white-space: nowrap;   //强制不换行
    text-overflow: ellipsis;  //超出变省略号
    overflow: hidden;  //超出隐藏
    word-wrap: break-word; //英文单词换行

二，CSS3动画效果@keyframes

    01：鼠标悬浮背景变化
    .load-more:hover{
        animation:change .5s ease-in;
    }
    @keyframes change{
        0%,20%{opacity:0.25;}
        30%,50%{opacity:0.55;}
        60%,80%{opacity:0.75;}
        90%,100%{opacity:1;}
    }

    02：3D旋转
    .earth-round{
        -webkit-animation:earthmove 2s linear both infinite;
    }
    @keyframes earthmove{
        to{transform:rotateY(360deg)translateZ(20px)};
    }

    03：360度旋转
    .earth-round{
        -webkit-animation:earthmove 2s linear both infinite;
    }
    @-webkit-keyframes earthmove{
        0% {-webkit-transform:rotate(0deg);}
        50% {-webkit-transform:rotate(180deg);}
        100% {-webkit-transform:rotate(360deg);}
    }

三，清楚浮动Clearfix

    .clearfix:after{content:".";display:block;height:0;clear:both;visibility:hidden}
    .clearfix{*+height:1%;}

四，无论多少文字都垂直居中（定位方式）

    //Html 
    <div class="middle-box">
        <div class="middle-inner">
            <p>前端开发博客，专注前端开发和web教程前端开发博客</p>
        </div>
    </div>

    //css
    .middle-box{
        display:table; 
        height: 300px; 
        border:1px solid #ff0000; 
        width:400px; 
        margin:0 auto; 
        position:relative;
    }
    .middle-inner{
        display: table-cell; 
        vertical-align:middle; 
        *position:absolute; 
        *top:50%; *left:50%; 
        width:100%; 
        text-align:center;
    }
    .middle-inner p{
        position:relative; 
        *top:-50%; 
        *left:-50%;
    }

五，浏览器输入占位符颜色重置

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

六，CSS自定义输入[type =“ checkbox”]

html, body, div, span, applet, object, iframe,
h1, h2, h3, h4, h5, h6, p, blockquote, pre,
a, abbr, acronym, address, big, cite, code,
del, dfn, em, img, ins, kbd, q, s, samp,
small, strike, strong, sub, sup, tt, var,
b, u, i, center,
dl, dt, dd, ol, ul, li,
fieldset, form, label, legend,
table, caption, tbody, tfoot, thead, tr, th,
article, aside, canvas, details, embed,
figure, figcaption, footer, header, hgroup,
main, menu, nav, output, ruby, section, summary,
time, mark, audio, video, input, textarea, button {
  margin: 0;
  padding: 0;
  border: 0;
  vertical-align: baseline;
  box-sizing: border-box;
  font-style: normal;
  font-weight: normal;
  text-decoration: none;
  outline: none;
  border-radius: 0;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  -webkit-appearance: none;
  -webkit-overflow-scrolling: touch;
  @media only screen and (min-width: 1200px) {
    cursor: none !important;
  }
}
article, aside, details, figcaption, figure,
footer, header, hgroup, main, menu, nav, section {
  display: block;
}

body {
  line-height: 1;
}

ol, ul {
  list-style: none;
}

blockquote, q {
  quotes: none;
}

blockquote:before, blockquote:after,
q:before, q:after {
  content: '';
  content: none;
}

a:hover, a:active {
  outline: none;
}

table {
  border-collapse: collapse;
  border-spacing: 0;
}

七，CSS指南

html, body, div, span, applet, object, iframe,
h1, h2, h3, h4, h5, h6, p, blockquote, pre,
a, abbr, acronym, address, big, cite, code,
del, dfn, em, img, ins, kbd, q, s, samp,
small, strike, strong, sub, sup, tt, var,
b, u, i, center,
dl, dt, dd, ol, ul, li,
fieldset, form, label, legend,
table, caption, tbody, tfoot, thead, tr, th,
article, aside, canvas, details, embed,
figure, figcaption, footer, header, hgroup,
main, menu, nav, output, ruby, section, summary,
time, mark, audio, video, input, textarea, button {
  margin: 0;
  padding: 0;
  border: 0;
  vertical-align: baseline;
  box-sizing: border-box;
  font-style: normal;
  font-weight: normal;
  text-decoration: none;
  outline: none;
  border-radius: 0;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  -webkit-appearance: none;
  -webkit-overflow-scrolling: touch;
  @media only screen and (min-width: 1200px) {
    cursor: none !important;
  }
}
article, aside, details, figcaption, figure,
footer, header, hgroup, main, menu, nav, section {
  display: block;
}

body {
  line-height: 1;
}

ol, ul {
  list-style: none;
}

blockquote, q {
  quotes: none;
}

blockquote:before, blockquote:after,
q:before, q:after {
  content: '';
  content: none;
}

a:hover, a:active {
  outline: none;
}

table {
  border-collapse: collapse;
  border-spacing: 0;
}

八，input只允许输入正整数/规定数字大小

    οnkeyup="this.value=this.value.replace(/\D/g,'')" 
    onafterpaste="this.value=this.value.replace(/\D/g,'')"
    //规定允许输入大小值
    $('.threety').on('keyup',function(){
        var v = parseInt($(this).val(), 10);
        if( v > 30){
            $(this).val(30);
        }
    });

九，JS快速求矩阵和

    eval(arry.join('+'));

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