html {
    background: gray;
    background-image: linear-gradient(270deg, rgb(230, 233, 233) 0%, rgb(216, 221, 221) 100%); 
    overflow-y:scroll; 
}

body {
    background: #ffffff;
    box-shadow: 0 0 2px rgba(0, 0, 0, 0.06);
    color: #545454;
    font-family: Helvetica, Arial, sans-serif;
    font-size: 16px;
    line-height: 1.5;
    margin: 0 auto;
    max-width: 990px;
    padding: 2em 2em 4em;
    margin-top: -2em;
    /* margin-bottom: 1em; */
    /* position: absolute; 
    top: -25px; */
}

span      { color: red; }

a:link { 	 color:green; text-decoration:underline; }
a:visited {	 color:green; text-decoration:underline; }
a:active {	 color:green; text-decoration:underline; }
a:hover {	 color:gray; text-decoration:underline; }

h1, h2, h3, h4, h5, h6 {
    color: green;
    /* font-weight: 600; */
    line-height: 1; 
}

h2 {
    margin-top: 1.3em;
}

   div.table { 
      display: table; 
      border-collapse:collapse;
      border-color: black;    
    }

    div.tr { 
      display:table-row; 
    }
    div.td { 
      display:table-cell; 
      border:thin solid white; 
      padding:5px; 
 
    }
    
        div.tdright { 
      display:table-cell; 
      border:thin solid white; 
      padding:5px; 
      text-align: right;
    }
    
        div.tdleft { 
      display:table-cell; 
      border:thin solid white; 
      padding:5px; 
      text-align: left;
                /* border-color: black;  */
    }

        div.tdcenter { 
      display:table-cell; 
      border:thin solid white; 
      padding:5px; 
      text-align: center;
    }

/* video_background {
	position: absolute;
	top: 0px;
	right: 0px;
	min-width: 100%;
	min-height: 100%;
	width: auto;
	height: auto;
	z-index: -1000;
	overflow: hidden;
}*/