styles.css

* {
    padding: 0;
    margin: 0;
    box-sizing: border-box;
}
html, body, button, input, .img {
    width: 100%;
    height: 100%;
    font-size: 14px;
    font-family: sans-serif;
    white-space: pre;
}
body {
    overflow: hidden
}
body * {
    position: absolute;
    transform-origin: top left;
}
/*
html {
    background-color: black;
}
html, body, button, input, .img{
    color: white;
}
.CheckBox > label > input {
    background-color: #25252a;
}
.LineEdit {
    background-color: #2c2a32;
}
.LineEdit:disabled {
    background-color: #2e2e2e;
}
.ItemList {
    background-color: #2c2a32
}
.Panel {
    background-color: #25252A
}
.Button {
    background-color: #3b3943
}
.Button:disabled {
    background-color: #3f3f3f
}
.OptionButton {
    background-color: #3b3943
}
.OptionButton:disabled {
    background-color: #3e3e3e
}
.TabContainer {
    background-color: #3b3943;
}
*/
.Panel {
    box-shadow: 0px 0px 16px 5px #DDDDDD
}
.HSeparator {
    border-bottom: 1px solid white;
}
.TextureRect {
    background-repeat: no-repeat;
}
.VBoxContainer, .HBoxContainer, .GridContainer {
    display: flex;
    flex-wrap: nowrap;
    justify-content: flex-start;
    align-items: stretch;
}
.GridContainer {
    flex-wrap: wrap;
}
.VBoxContainer > *, .HBoxContainer > *, .GridContainer > * {
    position: relative;
    top: initial !important;
    left: initial !important;
    right: initial !important;
    bottom: initial !important;
}
.HBoxContainer, .GridContainer {
    flex-direction: row;
}
.HBoxContainer > * {
    width: 0 !important;
    height: 100% !important;
}
.GridContainer > * {
    width: 0 !important;
    height: 0 !important;
}
.VBoxContainer {
    flex-direction: column;
}
.VBoxContainer > * {
    width: 100% !important;
    height: 0 !important;
}
.CheckBox > label {
    position: static;
    display: inline-block;
    width: 100%;
    height: 100%;
}
.CheckBox > label > input {
    position: static;
    width: 14px;
    height: 100%;
    vertical-align: middle;
    margin: 0 5px;
}
.RichTextLabel {
    white-space: break-spaces;
    overflow-y: auto;
    overflow-x: hidden;
}