使Div出现在圣诞节前后

问题描述

我想问一个问题,我对html几乎一无所知,我想在页面上应用雪花样式效果。我从这里获取代码添加代码,但是我想这样做,以便它从11月1日到12月31日出现,然后自动消失,并在明年再次出现。有人可以帮我弄清楚我该怎么做。

codepen.io/codeconvey/pen/xRzQay

这对于做这个的人来说可能是个问题,但是有没有一种快速方法可以使它下雪呢?

谢谢!

解决方法

    var d = new Date()

if(d.getMonth() < 10){ //starts counting from 0
  var snows = document.getElementById("snows");
  snows.remove();
}

我还为您的雪花div添加了一个ID。

您可以通过添加更多雪花来增加数量

<div class="snowflake">
  ❄
  </div>

进入您的html。

,

正如我在评论中所说,您需要使用JS获取当前日期,并检查它是否在11月1日至12月31日之间。简而言之,您只需要一个月。 JS计算索引为零的月份(一月为0,十二月为11)。就您而言,您只需要检查月份是10还是11(无需检查日期和年份)

/* https://pajasevi.github.io/CSSnowflakes/ */

if (new Date().getMonth() == 10 || new Date().getMonth() == 11) {
  var children = document.getElementById('snowflakes').children;
  for (let i = 0; i < children.length; i++) {
    children[i].classList.add('snowflake');
  }
}
body {
  background: red;
}


/* customizable snowflake styling */

.snowflake {
  color: #fff;
  font-size: 1em;
  font-family: Arial;
  text-shadow: 0 0 1px #000;
}

@-webkit-keyframes snowflakes-fall {
  0% {
    top: -10%
  }
  100% {
    top: 100%
  }
}

@-webkit-keyframes snowflakes-shake {
  0% {
    -webkit-transform: translateX(0px);
    transform: translateX(0px)
  }
  50% {
    -webkit-transform: translateX(80px);
    transform: translateX(80px)
  }
  100% {
    -webkit-transform: translateX(0px);
    transform: translateX(0px)
  }
}

@keyframes snowflakes-fall {
  0% {
    top: -10%
  }
  100% {
    top: 100%
  }
}

@keyframes snowflakes-shake {
  0% {
    transform: translateX(0px)
  }
  50% {
    transform: translateX(80px)
  }
  100% {
    transform: translateX(0px)
  }
}

.snowflake {
  position: fixed;
  top: -10%;
  z-index: 9999;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
  cursor: default;
  -webkit-animation-name: snowflakes-fall,snowflakes-shake;
  -webkit-animation-duration: 10s,3s;
  -webkit-animation-timing-function: linear,ease-in-out;
  -webkit-animation-iteration-count: infinite,infinite;
  -webkit-animation-play-state: running,running;
  animation-name: snowflakes-fall,snowflakes-shake;
  animation-duration: 10s,3s;
  animation-timing-function: linear,ease-in-out;
  animation-iteration-count: infinite,infinite;
  animation-play-state: running,running
}

.snowflake:nth-of-type(0) {
  left: 1%;
  -webkit-animation-delay: 0s,0s;
  animation-delay: 0s,0s
}

.snowflake:nth-of-type(1) {
  left: 10%;
  -webkit-animation-delay: 1s,1s;
  animation-delay: 1s,1s
}

.snowflake:nth-of-type(2) {
  left: 20%;
  -webkit-animation-delay: 6s,.5s;
  animation-delay: 6s,.5s
}

.snowflake:nth-of-type(3) {
  left: 30%;
  -webkit-animation-delay: 4s,2s;
  animation-delay: 4s,2s
}

.snowflake:nth-of-type(4) {
  left: 40%;
  -webkit-animation-delay: 2s,2s;
  animation-delay: 2s,2s
}

.snowflake:nth-of-type(5) {
  left: 50%;
  -webkit-animation-delay: 8s,3s;
  animation-delay: 8s,3s
}

.snowflake:nth-of-type(6) {
  left: 60%;
  -webkit-animation-delay: 6s,2s;
  animation-delay: 6s,2s
}

.snowflake:nth-of-type(7) {
  left: 70%;
  -webkit-animation-delay: 2.5s,1s;
  animation-delay: 2.5s,1s
}

.snowflake:nth-of-type(8) {
  left: 80%;
  -webkit-animation-delay: 1s,0s;
  animation-delay: 1s,0s
}

.snowflake:nth-of-type(9) {
  left: 90%;
  -webkit-animation-delay: 3s,1.5s;
  animation-delay: 3s,1.5s
}


/* Demo Purpose Only*/

.demo {
  font-family: 'Raleway',sans-serif;
  color: #fff;
  display: block;
  margin: 0 auto;
  padding: 15px 0;
  text-align: center;
}

.demo a {
  font-family: 'Raleway',sans-serif;
  color: #000;
}
<div id="snowflakes" aria-hidden="true">
  <div>
    ❅
  </div>
  <div>
    ❅
  </div>
  <div>
    ❆
  </div>
  <div>
    ❄
  </div>
  <div>
    ❅
  </div>
  <div>
    ❆
  </div>
  <div>
    ❄
  </div>
  <div>
    ❅
  </div>
  <div>
    ❆
  </div>
  <div>
    ❄
  </div>
</div>