body, html {
    margin: 0;
  }
  
  html {
    height: 100%;
  }
  
  body {
    height: 90%;
    max-width: 800px;
    margin: 0 auto;
  }
  
  h1,p{
    font-family: sans-serif;
    text-align: center;
    padding: 20px;
  }

  #date{
    font-size: 50px;
  }
  
  .txt, select, form > div {
    display: block;
    margin-top: 10px;
    font-family: sans-serif;
    font-size: 16px;
    padding: 5px;
  }
  
  .txt {
    width: 80%;
  }
  
  select {
    width: 83%;
  }
  
  form > div {
    width: 81%;
  }
  
  .txt, form > div {
    margin-bottom: 10px;
    overflow: auto;
  }
  
  
  label {
    float: left;
    width: 10%;
    line-height: 1.5;
  }
  
  .rate-valu {
    float: right;
    width: 5%;
    line-height: 1.5;
  }
  
  #rate {
    float: right;
    width: 81%;
  }
  
  #time{
    font-size: 300px; 
    text-align: center;
  }

#control{
    position: absolute;
    top: 90%;
    left: 50%;
    transform: translate(-30%, -50%);
    padding: 1em;
}

#pixblock_horizontal
{
    position:relative;
    width:50px;
    height:50px;
    border:solid 50px rgb(55, 59, 54);
}

#pixblock_vertical{
    position:relative;
    left:-400px;
    width:50px;
    height:50px;
    border:solid 50px rgb(55, 59, 54);
}

button{			
    text-decoration:none;
    background:rgb(55, 59, 54);
    color:#f2f2f2;

    padding: 10px 30px 10px 30px;
    font-size:16px;
    font-family: 微软雅黑,宋体,Arial,Helvetica,Verdana,sans-serif;
    font-weight:bold;
    border-radius:3px;

    -webkit-transition:all linear 0.30s;
    -moz-transition:all linear 0.30s;
    transition:all linear 0.30s;
}