EmulatorJS/src/css/main.css

.ejs_parent {
    background: #000;
    overflow: hidden;
    --ejs-primary-color: 26,175,255;
    position: relative;
    font-family: Avenir, "Avenir Next", "Helvetica Neue", "Segoe UI", Helvetica, Arial, sans-serif;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
    font-weight: 500;
    line-height: 1.7;
    width: 100%;
    height: 100%;
    color: #bcbcbc;
}

.ejs_parent ::-webkit-scrollbar{
    width: 8px;
    height: 16px;
    background-color: transparent;
}
.ejs_parent ::-webkit-scrollbar-thumb{
    border-radius: 0;
    -webkit-box-shadow: inset 0 0 6px rgba(0,0,0,0.3);
    background-color: #f5f5f5;
}
.ejs_parent ::-webkit-scrollbar-track{
    -webkit-box-shadow: inset 0 0 6px rgba(0,0,0,0.3);
    border-radius: 10px;
    background-color: transparent;
}
.ejs_parent {
    scrollbar-face-color:#F5F5F5;
    scrollbar-highlight-color:transparent;
    scrollbar-3dlight-color:transparent;
    scrollbar-darkshadow-color:transparent;
    scrollbar-Shadow-color:transparent;
    scrollbar-arrow-color:#fff;
    scrollbar-track-color:transparent;
    scrollbar-width:thin;
    scrollbar-color:transparent #f5f5f5;
}

.ejs_game {/* todo. User selectable background loading image */
    width: 100%;
    height: 100%;
    background-color: rgb(51, 51, 51);
    cursor: default;
}

.ejs_start_button {
    position: absolute;
    bottom: 65px;
    left: 50%;
    transform: translateX(-50%);
    cursor: pointer;
    box-sizing: inherit;
    
    display: flex;
    justify-content: center;
    text-shadow: 0 1px 1px rgba(0,0,0,0.5);
    font-size: 20px;
    line-height: 45px;
    text-transform: uppercase;
    font-weight: bolder;
    position: relative;
    text-decoration: none;
    width: 200px;
    height: 45px;
    border: 0;
    color: #fff !important;
    border-radius: 35px;
    text-align: center;
    background-color: rgba(var(--ejs-primary-color),1);
}

.ejs_start_button:active {
    box-shadow: 0 0 0 0 #222, 0 3px 7px 0 #111, inset 0 1px 1px 0 rgba(250,250,250,0.2), inset 0 -10px 35px 5px rgba(0,0,0,0.5);
    bottom: 64px;
}

.ejs_loading_text {
    position: absolute;
    bottom: 20px;
    font-weight: 500;
    left: 50%;
    transform: translateX(-50%);
    box-sizing: inherit;
    font-size: 12px;
    color: #bcbcbc;
}

.ejs_canvas {
    width: 100%;
    height: 100%;
}

.ejs_context_menu {
    position: absolute;
    display: none;
    z-index: 9;
    background: rgba(16,16,16,0.9);
    border-radius: 3px;
    font-size: 13px;
    min-width: 140px;
    padding: 8px;
    box-sizing: inherit;
}

.ejs_context_menu li {
    padding: 4px 11px;
    text-align: center;
}

.ejs_context_menu li a {
    color: #999;
    display: block;
    font-size: 13px;
}
.ejs_context_menu ul {
    color: #999;
    display: block;
    font-size: 13px;
    list-style: none;
    margin: 0;
    padding: 0;
}

.ejs_context_menu li:hover {
    background: rgba(var(--ejs-primary-color),1);
    border-radius: 4px;
    box-shadow: 0 0 0 5px rgba(var(--ejs-primary-color),0.5);
    outline: 0;
}

.ejs_menu_bar {
    padding: 15px 10px 10px;
    background: linear-gradient(rgba(0,0,0,0),rgba(0,0,0,0.7));
    border-bottom-left-radius: inherit;
    border-bottom-right-radius: inherit;
    bottom: 0;
    color: #fff;
    left: 0;
    position: absolute;
    right: 0;
    transition: opacity .4s ease-in-out,transform .4s ease-in-out;
    z-index: 3;
    align-items: center;
    display: flex;
    justify-content: flex-start;
    text-align: center;
}

.ejs_menu_bar svg {
    display: block;
    fill: currentColor;
    height: 18px;
    pointer-events: none;
    width: 18px;
}

.ejs_menu_bar_hidden {
    opacity: 0;
    pointer-events: none;
    transform: translateY(100%);
}

.ejs_menu_button {
    margin-right: 2px;
    touch-action: manipulation;
    background: transparent;
    border: 0;
    border-radius: 3px;
    color: inherit;
    cursor: pointer;
    flex-shrink: 0;
    overflow: visible;
    padding: 7px;
    position: relative;
    transition: all .3s ease;
}

.ejs_menu_button:hover {
    background: rgba(var(--ejs-primary-color),1);
    color: #fff;
}

.ejs_menu_button:hover .ejs_menu_text {
    transform: translate(0,0) scale(1);
    opacity: 1;
}

.ejs_menu_text {
    left: 0;
    background: rgba(255,255,255,0.9);
    border-radius: 3px;
    bottom: 100%;
    box-shadow: 0 1px 2px rgba(0,0,0,0.15);
    color: #4f5b5f;
    font-size: 14px;
    font-weight: 500;
    line-height: 1.3;
    margin-bottom: 10px;
    opacity: 0;
    padding: 5px 7.5px;
    pointer-events: none;
    position: absolute;
    transform: translate(0,10px) scale(0.8);
    transform-origin: 0 100%;
    transition: transform .2s .1s ease,opacity .2s .1s ease;
    white-space: nowrap;
    z-index: 2;
}

.ejs_menu_text::before {
    border-left: 4px solid transparent;
    border-right: 4px solid transparent;
    border-top: 4px solid rgba(255,255,255,0.9);
    bottom: -4px;
    content: '';
    height: 0;
    left: 16px;
    position: absolute;
    transform: translateX(-50%);
    width: 0;
    z-index: 2;
}

.ejs_popup_container {
    background: rgba(0,0,0,0.8);
    text-align: center;
    z-index: 9999;
    height: 100%;
    overflow: hidden;
    position: absolute;
    top: 0;
    width: 100%;
    color: #ccc;
}

.ejs_popup_container *, .ejs_popup_container *::after, .ejs_popup_container *::before {
    box-sizing: border-box;
}

.ejs_popup_container h4 {
    color: #ccc;
    font-size: 24px;
    margin: 0;
    padding: 10px;
}

.ejs_button {
    border-radius: .25rem;
    font-size: .875rem;
    padding-left: 1rem;
    padding-right: 1rem;
    padding-top: .5rem;
    padding-bottom: .5rem;
    display: inline-block;
    background-color: rgba(var(--ejs-primary-color),1);
    margin: 0 10px;
    color: #fff !important;
    touch-action: manipulation;
    cursor: pointer;
}

.ejs_popup_body {
    height: calc(100% - 130px);
    overflow: auto;
}

.ejs_control_body {
    color: #bcbcbc !important;
    border: unset;
}

.ejs_control_body input[type='text'] {
    background-color: #fff;
    border: 1px solid #000;
    font-size: 12px;
    font-weight: 700;
    color: #000 !important;
}
.ejs_control_player_bar {
    margin: 0;
    padding: 0;
}
.ejs_control_player_bar ul {
    list-style: none;
}
.ejs_control_player_bar li {
    color: #bcbcbc !important;
    display: inline-block;
}
.ejs_control_player_bar a {
    padding: 2px 5px;
    color: #bcbcbc !important;
    font-size: 14px;
    cursor: pointer;
}

.ejs_control_selected {
    border-bottom: 1px solid #fff;
    background-color: #fff;
}
.ejs_control_selected a {
    color: #000 !important;
}

.ejs_control_bar:hover {
    background-color: #2d2d2d;
}

.ejs_popup_box {
    position: absolute;
    width: 300px;
    top: 50%;
    margin-left: -150px;
    margin-top: -50px;
    left: 50%;
    background: rgba(0,0,0,0.8) !important;
    padding: 15px 0;
}

.ejs_virtualGamepad_parent {
    width: 100%;
    position: absolute;
    bottom: 50px;
}
.ejs_virtualGamepad_top {
    position: absolute;
    bottom: 250px;
    width: 100%;
}
.ejs_virtualGamepad_bottom {
    position: absolute;
    bottom: 10px;
    height: 30px;
    width: 124px;
    left: 50%;
    margin-left: -62px;
}
.ejs_virtualGamepad_left {
    position: absolute;
    bottom: 50px;
    width: 125px;
    height: 125px;
    left: 10px;
}
.ejs_virtualGamepad_right {
    position: absolute;
    bottom: 50px;
    width: 130px;
    height: 130px;
    right: 10px;
}
.ejs_virtualGamepad_button {
    position: absolute;
    font-size: 20px;
    width: 50px;
    height: 50px;
    text-align: center;
    line-height: 50px;
    border: 1px solid #ccc;
    border-radius: 50%;
    font-size: 30px;
    font-weight: bold;
    background-color: rgba(255,255,255,0.15);
    user-select: none;
    transition: all .2s;
}
.ejs_virtualGamepad_button_down {
    background-color:#000000ad;
}

.ejs_dpad_main {
    touch-action: none;
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: .7;
}
.ejs_dpad_horizontal {
    width: 100%;
    height: 36px;
    transform: translate(0,-50%);
    position: absolute;
    left: 0;
    top: 50%;
    border-radius: 5px;
    overflow: hidden;
}
.ejs_dpad_horizontal:before {
    content: "";
    position: absolute;
    left: 0;
    top: 50%;
    z-index: 1;
    transform: translate(0,-50%);
    width: 0;
    height: 0;
    border: 8px solid;
    border-color: transparent #333 transparent transparent;
}
.ejs_dpad_horizontal:after {
    content: "";
    position: absolute;
    right: 0;
    top: 50%;
    z-index: 1;
    transform: translate(0,-50%);
    width: 0;
    height: 0;
    border: 8px solid;
    border-color: transparent transparent transparent #333;
}
.ejs_dpad_vertical {
    width: 36px;
    height: 100%;
    transform: translate(-50%,0);
    position: absolute;
    left: 50%;
    border-radius: 5px;
    overflow: hidden;
}
.ejs_dpad_vertical:before {
    content: "";
    position: absolute;
    top: 0;
    left: 50%;
    z-index: 1;
    transform: translate(-50%,0);
    width: 0;
    height: 0;
    border: 8px solid;
    border-color: transparent transparent #333 transparent;
}
.ejs_dpad_vertical:after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 50%;
    z-index: 1;
    transform: translate(-50%,0);
    width: 0;
    height: 0;
    border: 8px solid;
    border-color: #333 transparent transparent transparent;
}
.ejs_dpad_bar {
    position: absolute;
    width: 100%;
    height: 100%;
    background: #787878;
}
.ejs_dpad_left_pressed .ejs_dpad_horizontal:before {
    border-right-color:#fff;
}
.ejs_dpad_right_pressed .ejs_dpad_horizontal:after {
    border-left-color:#fff;
}
.ejs_dpad_up_pressed .ejs_dpad_vertical:before {
    border-bottom-color:#fff;
}
.ejs_dpad_down_pressed .ejs_dpad_vertical:after {
    border-top-color:#fff
}

.ejs_settings_parent {
    background: rgba(16,16,16,0.9);
    border-radius: 4px;
    bottom: 100%;
    box-shadow: 0 1px 2px rgba(0,0,0,0.15);
    color: #4f5b5f;
    font-size: 16px;
    margin-bottom: 10px;
    position: absolute;
    right: -3px;
    text-align: left;
    white-space: nowrap;
    z-index: 3;
}
.ejs_settings_parent::after {
    border: 4px solid transparent;
    border-top-color: rgba(16,16,16,0.9);
    content: '';
    height: 0;
    position: absolute;
    right: 15px;
    top: 100%;
    width: 0;
}
.ejs_settings_parent>div {
    overflow: hidden;
    transition: height .35s cubic-bezier(0.4,0,0.2,1),width .35s cubic-bezier(0.4,0,0.2,1);
}
.ejs_setting_home {
    max-height: 385px;
    overflow: auto;
    padding: 7px;
}
.ejs_settings_main_bar {
    align-items: center;
    color: #999;
    display: flex;
    font-size: 13px;
    padding: 4px 11px;
    user-select: none;
    width: 100%;
    padding-right: 28px;
    background: transparent;
    border: 0;
    border-radius: 3px;
    flex-shrink: 0;
    overflow: visible;
    position: relative;
    transition: all .3s ease;
    box-sizing: border-box;
}
.ejs_settings_main_bar::after {
    border: 4px solid transparent;
    content: '';
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    border-left-color: rgba(79,91,95,0.8);
    right: 5px;
}
.ejs_settings_main_bar>span {
    align-items: inherit;
    display: flex;
    width: 100%;
}
.ejs_settings_main_bar:hover {
    background: rgba(var(--ejs-primary-color),1);
    color: #fff;
    cursor: pointer;
}
.ejs_settings_main_bar:hover::after {
    border-left-color: currentColor;
}
.ejs_settings_main_bar_selected {
    align-items: center;
    display: flex;
    margin-left: auto;
    margin-right: -5px;
    overflow: hidden;
    padding-left: 25px;
    pointer-events: none;
}