随机字符背景效果-html代码-BFW代码库

代码语言：html
所属分类：背景
代码描述：随机字符背景效果
代码标签：效果
下面为部分代码预览，完整代码请点击下载或在bfwstudio webide中打开

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">

<style>
@font-face {
  font-family: 'Muli';
  font-weight: 200 900;
  src: url("https://s3-us-west-2.amazonaws.com/s.cdpn.io/240751/Muli-VariableFont_wght.ttf") format("truetype");
}
@font-face {
  font-family: 'Playfair Display';
  font-weight: 400 900;
  src: url("https://s3-us-west-2.amazonaws.com/s.cdpn.io/240751/PlayfairDisplay-Italic-VariableFont_wght.ttf") format("truetype");
}
*, *:before, *:after {
  box-sizing: border-box;
}

.sr, #app .toolbar input[type="checkbox"] {
  position: absolute;
  left: -100vw;
  width: 1px;
  height: 1px;
  opacity: 0;
  clip: rect(1px, 1px, 1px, 1px);
}

.float-right {
  float: right;
  margin-left: auto;
}

body {
  margin: 0;
  height: 100vh;
  width: 100vw;
  overflow: hidden;
}

#app {
  font-family: 'Muli';
  color: #53565a;
  min-height: 100vh;
}
#app #grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(70px, 1fr));
  grid-auto-flow: dense;
  min-height: 100vh;
  -webkit-box-align: stretch;
          align-items: stretch;
}
#app .cell {
  width: 100%;
  line-height: 1em;
  display: -webkit-box;
  display: flex;
  -webkit-box-align: center;
          align-items: center;
  -webkit-box-pack: center;
          justify-content: center;
  font-size: calc(.7em + 3vmin);
  -webkit-transition: background 0.6s cubic-bezier(0.5, 0, 0.5, 1), font-weight 0.6s cubic-bezier(0.5, 0, 0.5, 1), color 0.6s cubic-bezier(0.5, 0, 0.5, 1);
  transition: background 0.6s cubic-bezier(0.5, 0, 0.5, 1), font-weight 0.6s cubic-bezier(0.5, 0, 0.5, 1), color 0.6s cubic-bezier(0.5, 0, 0.5, 1);
  font-weight: 200;
  width: 0;
  height: 0;
  padding: 50%;
  -webkit-animation: fadeOut 0.4s cubic-bezier(0.5, 0, 0.5, 1) forwards;
          animation: fadeOut 0.4s cubic-bezier(0.5, 0, 0.5, 1) forwards;
}
#app .cell:not(.fade) {
  -webkit-animation: fadeIn 0.4s cubic-bezier(0.5, 0, 0.5, 1) forwards;
          animation: fadeIn 0.4s cubic-bezier(0.5, 0, 0.5, 1) forwards;
}
#app .cell.m {
  grid-column: span 2;
  grid-row: span 2;
  font-size: calc(calc(.7em + 3vmin) * 2);
}
#app .cell.l {
  grid-column: span 3;
  grid-row: span 3;
  font-size: calc(calc(.7em + 3vmin) * 3);
}
#app .cell.xl {
  grid-column: span 4;
  grid-row: span 4;
  font-size: calc(calc(.7em + 3vmin) * 4);
}
#app .cell.xxl {
  grid-column: span 5;
  grid-row: span 5;
  font-size: calc(calc(.7em + 3vmin) * 4);
}
#app .cell.serif {
  font-family: 'Playfair Display', serif;
}
#app .cell.round {
  border-radius: 20em;
  padding: 46%;
  margin: 4%;
}
#app .cell[data-weight="900"] {
  font-weight: 900;
}
#app .cell[data-weight="200"] {
  font-weight: 200;
  background-color: #fff;
}
#app .cell:not(.colorized) {
  background-color: #fff !important;
  color: #53565a !important;
}
#app .toolbar {
  background: rgba(0, 0, 0, 0.85);
  -webkit-transition: left 0.3s cubic-bezier(0.5, 0, 0.5, 1);
  transition: left 0.3s cubic-bezier(0.5, 0, 0.5, 1);
  position: absolute;
  top: 0;
  padding: 1rem;
  height: 100vh;
  width: 100%;
  left: -100%;
}
@media (min-width: 420px) {
  #app .toolbar {
    max-width: 420px;
    left: -420px;
  }
}
#app .toolbar.shown {
  left: 0;
  overflow-y: scroll;
}
#app .toolbar.shown #hamburger {
  right: 0;
  background: transparent;
  top: 0;
}
#app .toolbar #hamburger {
  -webkit-transition: all 0.3 cubic-bezier(0.5, 0, 0.5, 1);
  transition: all 0.3 cubic-bezier(0.5, 0, 0.5, 1);
  width: 4rem;
  height: 4rem;
  background: inherit;
  position: absolute;
  right: -4rem;
  top: 1rem;
  border: none;
  border-top-right-radius: 2rem;
  border-bottom-right-radius: 2rem;
  font-size: 2rem;
  text-transform: uppercase;
  color: #fff;
  font-weight: 900;
  display: -webkit-box;
  display: flex;
  -webkit-box-align: center;
          align-items: center;
  -webkit-box-pack: center;
          justify-content: center;
}
#app .toolbar #hamburger:focus, #app .toolbar #hamburger:hover {
  color: #ffd100;
  outline: none;
}
#app .toolbar #shuffle, #app .toolbar .group {
  font-size: inherit;
  font-family: inherit;
  color: inherit;
  font-weight: 700;
  display: -webkit-box;
  display: flex;
  flex-wrap: wrap;
  -webkit-box-align: center;
          align-items: center;
}
#app .toolbar #shuffle {
  border: none;
  padding: 1rem;
}
#app .toolbar .group {
  width: 100%;
  color: #fff;
  margin: 0 0 1.5rem;
  font-size: 1.2rem;
}
#app .toolbar .group > * {
  -webkit-box-flex: 1;
          flex: 1 1 100%;
  margin-top: .5rem;
}
#app .toolbar label {
  display: -webkit-box;
  display: flex;
  -webkit-box-align: center;
          align-items: center;
  flex-wrap: wrap;
  position: relative;
}
#app .toolbar input[type="checkbox"] + label:before {
  content: '';
  width: 1.2em;
  height: 1.2em;
  display: inline-block;
  border: 2px solid;
  margin-right: .5em;
}
#app .toolbar input[type="checkbox"]:checked + label:after {
  content: '';
  width: .8rem;
  height: 1.2rem;
  -webkit-transform: rotate(45deg);
          transform: rotate(45deg);
  border-bottom: 0.3rem solid #ffd100;
  border-right: 0.3rem solid #ffd100;
  left: .3rem;
  bottom: .3rem;
  position: absolute;
  z-index: 2;
}
#app .toolbar input[type="checkbox"]:focus + label {
  color: #ffd100;
}
#app .toolbar button {
  -webkit-transition: background 0.2s cubic-bezier(0.5, 0, 0.5, 1);
  transition: background 0.2s cubic-bezier(0.5, 0, 0.5, 1);
}
#app .toolbar button:focus, #app .toolbar button:hover {
  outline: none;
  background-color: #ffd100;
}
#app .toolbar textarea {
  width: 100%;
  min-height: 3.5em;
  border: none;
  font-family: inherit;
  padding: .5em;
  font-size: inherit;
  background: transparent;
  border: 2px solid #fff;
  color: #fff;
}

@-webkit-keyframes fadeIn {
  from {
    opacity: 0;
    -webkit-transform: translateY(1em);
            transform: translateY(1em);
  }
  to {
    opacity: 1;
    -webkit-transform: translateY(0);
            transform: translateY(0);
  }
}

@keyframes fadeIn {
  from {
    opacity: 0;
    -webkit-transform: translateY(1em);
            transform: translateY(1em);
  }
  to {
    opacity: 1;
    -webkit-transform: translateY(0);
            transform: translateY(0);
  }
}
@-webkit-keyframes fadeOut {
  from {
    opacity: 1;
    -webkit-transform: translateY(0);
            transform: translateY(0);
  }
  to {
    opacity: 0;
    -webkit-transform: translateY(-1em);
            transform: translateY(-1em);
  }
}
@keyframes fadeOut {
  from {
    opacity: 1;
    -webkit-transform: translateY(0);
            transform: translateY(0);
  }
  to {
    opacity: 0;
    -webkit-transform: translateY(-1em);
            transform: translateY(-1em);
  }
}
</style>

</head>
<body translate="no">
<div id="app">
<div id="grid">
<div v-for="cell, index in grid" class="cell" :class="[colorize && 'colorized', getCellClasses(cell)]" :data-weight="cell.weight" :style="{backgroundColor: cell.color.bg, color: cell.color.fg}" @mouseover="hoverLetter" @click="randomLetter" :key="index" :data-serif="cell.serif">
{{ cell.blank > blankPercentage ? cell.char : '' }}
</div>
</div>
<div class="toolbar" :class="isToolbarOpen && 'shown'">
<div :aria-hidden="!isToolbarOpen" :hidden="!isToolbarOpen">
<div class="group">
<label for="characters">Character set:</label>
<textarea id="characters" @input="regenerateGrid" v-model="characters"></textarea>
</div>
<div class="group">
<label for="serifPercentage">Chances of serif cell: <span class="float-right">{{ serifPercentage }}%</span>&l.........完整代码请登录后点击上方下载按钮下载查看