html,
body {
    height: 100%;
    
}

body {
    display: -ms-flexbox;
    display: flex;
    -ms-flex-align: center;
    align-items: center;
    padding-top: 40px;
    padding-bottom: 40px;
    /*
      background-color: #f5f5f5;
    */
    color: var(--color_text); /* antiquewhite */
    background-color: var(--bg); /* #282828 */
}

.mybtn {
    background-color: red;
    border-color: red;
    box-shadow: 1px 1px 5px 1px black;
}
    .mybtn:hover {
        background-color: #141414 !important;
        border-color: #141414;
    }
    .mybtn:focus, .mybtn:active {
        outline: none !important;
        border-color: red !important;
        box-shadow: 1px 1px 5px 1px red !important;
    }
.myinput {
}

.form-signin {
    width: 100%;
    max-width: 330px;
    padding: 15px;
    margin: auto;
}
.form-signin .checkbox {
  font-weight: 400;
}
.form-signin .form-control {
  position: relative;
  box-sizing: border-box;
  height: auto;
  padding: 10px;
  font-size: 16px;
}
.form-signin .form-control:focus {
  z-index: 2;
}
.form-signin input[type="text"] {
  margin-bottom: -1px;
  border-bottom-right-radius: 0;
  border-bottom-left-radius: 0;
}
.form-signin input[type="password"] {
  margin-bottom: 10px;
  border-top-left-radius: 0;
  border-top-right-radius: 0;
}