added viewportheight configuration option

README.md

@@ -35,6 +35,7 @@ You should install this card using [HACS](https://hacs.xyz).
 | bottomrightcolor | string | #bdb76b | CSS color for bottom center slot (soft yellow)
 | displaywidth | integer | 800 | width (in px) of display on which this will be displayed
 | displayheight | integer | 480 | height (in px) of display on which this will be displayed
+| viewportheight | integer or text | 100 | height of the black background; if no measurement is included, it's in vh, otherwise it's the measurement you include (px, etc)
 | offset | integer | 0 | change vertical position of card (in px)
 | clockspacing | integer | 0 | change space between clock and info slots (in px)
 | infospacing | integer | 0 | change space between info rows (in px)

simple-weather-clock.js

@@ -5,7 +5,7 @@ class SimpleWeatherClock extends HTMLElement {
         <style>
         ha-card {
           display: flex;
-          height: 100vh;
+          height: ${this.config.viewportheight};
           border-width: 0px;
           border-radius: 0px;
           padding: 0px;
@@ -212,6 +212,7 @@ class SimpleWeatherClock extends HTMLElement {
     var eba = 0;
     const cardConfig = Object.assign({}, config);
 
+    if (!cardConfig.viewportheight) cardConfig.viewportheight = "100vh";
     if (!cardConfig.background) cardConfig.background = "#000000";
     if (!cardConfig.font) cardConfig.font = "IBM Plex Mono";
     if (!cardConfig.fontweight) cardConfig.fontweight = 700;