body {
    margin: 0;
    font-family: Barlow Semi Condensed, Helvetica, 'Roboto',Calibri, Arial, sans-serif,"Microsoft Yahei","Microsoft JhengHei", Dosis, "MS Serif";    
    background-color: white;
}

.floatleft {
    float: left;
}

.floatright {
    float: right;
}

#topbtn {
    display: inline-block;
    background-color: #B41B34;
    width: 50px;
    height: 50px;
    text-align: center;
    border-radius: 50%;
    position: fixed;
    bottom: 30px;
    right: 30px;
    transition: background-color .3s, opacity .5s, visibility .5s;
    opacity: 0;
    visibility: hidden;
    z-index: 1000;
}

    #topbtn::after {
        content: "\f077";
        font-family: FontAwesome;
        font-weight: normal;
        font-style: normal;
        font-size: 2em;
        line-height: 45px;
        color: #fff;
    }

    #topbtn:hover {
        cursor: pointer;
        background-color: #333;
    }

    #topbtn:active {
        background-color: #555;
    }

    #topbtn.show {
        opacity: 1;
        visibility: visible;
    }

.header_hr {
    width: 90px;
    height: 5px;
    background-color: #B41B34;
    border-color: #B41B34;
}