Change background and text colors

static/admin.css

@@ -1,11 +1,9 @@
 * {
 	padding:0px;
 	margin:0px;
-	
+
 }
 header{
-	
-	
 	padding-top: 30px;
 	padding-right: 30px;
 	padding-left: 30px;
@@ -13,18 +11,24 @@ header{
 	font-weight: bolder;
 	font-size: 30px;
 	color: white;
-
 }
+
 body{
-	background:url("https://images.unsplash.com/photo-1485579149621-3123dd979885?ixid=MXwxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHw%3D&ixlib=rb-1.2.1&auto=format&fit=crop&w=1489&q=80");
+	background: url("background.jpg");
 	background-repeat: no-repeat;
 	background-size: cover;
-	opacity: 0.5;	
+	background-position: left;
+	color: white;
+	min-height: 100vh;
 }
+
 .container{
-	margin:10px 10px;
-	padding: 20px;
+	margin: 10px 10px;
+	width: calc(100% - 20px);
+	display: flex;
+	justify-content: center;
 }
+
 input[type=text]{
 	width:43%;
 	background: white;
@@ -104,6 +108,7 @@ h1{
 
 .content-table tbody tr:nth-of-type(even) {
 	background-color: rgba(243, 243, 243, 0.7);
+	color: #000;
 }
 
 .content-table tbody tr:last-of-type {
@@ -122,7 +127,4 @@ h1{
 }
 
 .button-dec {
-	width: 100%;
-	display: flex;
-	justify-content: center;
 }