#title{
    height: 80px;
    width:100%;
    font-size: 1.00em;
    padding: 0.5em 0em;
    text-align: center;
    margin:0 auto;
    opacity: 0;
    /*background-color: brown;*/
    
}
#line{
    width: 0%;
    height: 10px;
    text-align: center;
    margin: 0 auto;
    /*background-color: chartreuse;*/
    border-bottom: 2px solid #494953;
}

header{
    height: 45px;
    width: 0%;
    /*background-color: chartreuse;*/
    border-bottom: 0px solid #494953;
    margin-bottom: 2em;
}
#title1{
    left: -550px;
   
}
#title2{
    left: -550px;
}
#realtime_flow{
    height:100%;
    display: none;
    margin-left: auto;
    margin-right: auto;
    margin-bottom: 10000px; 
}
.flow_img{
    
    padding-left: 10%;
    height:350px;
    /*background-color: aquamarine;*/
}

.realtime_img{
    border: 1px solid rgb(247, 184, 187);
    width: 490px;
    height: 370px;
    border-radius: 4px;
    padding: 4px 4px ;
    float: left;
    display: none;
}

.arrow_img{
    width:50px;
    height: 370px;
    float:left;
    margin-top: 185px;
    text-align: center;
}
#arrow_img{
    display: none;
}
img{
    border-radius: 4px;
    
}

.content1{
    margin: 100px;
    color: blanchedalmond;
}

.b {
    list-style-type: square;
  }