.centerdiv {border: 1px outset black; width:100%;}
@media screen and (max-width:420px)
{
.leftdiv { display: none; }
.rightdiv {border: 1px outset black; width:100%;}
}

@media screen and (min-width:421px)
{
.leftdiv { border: 1px outset black; height: 100vh;  width: 210px; float:left}
.rightdiv {border: 1px outset black; margin-left: 210px; min-height: 100vh; position: relative;  width: calc(100%-210px);}
}

#postform {width: 100%; height: auto;  }
.postform {width: 100%; height: auto;  }
#filter1 {width: 190px; height: 200px; display: flex; margin-top: 5px; margin-bottom: 5px; margin-left: 5px;}

#filter2 {width: 190px; height: 120px; display: flex; margin-top: 5px; margin-bottom: 5px; margin-left: 5px;}
button {margin-left: 10px; }
p {margin-left: 5px; }

 .custom-thead {
/*    background-color: $red-800;  Темно-красный цвет, можно выбрать другой */
/*    color: white;  Цвет текста */
	
  color:  #f7dc6f;
  background-color:#8B0000;
/*  background-color:  #7b241c; */
  }