Add new file

static/CSS/loginstyle.css

+header{
+    background-color: black;
+    display: block;
+    color: black;
+    margin-left: auto;
+    margin-right: inherit;
+    width: 100%;
+    height: 75%;
+}
+
+.card{
+    margin: 0 auto;
+    float: none; 
+    margin-bottom: 10px;
+}
+
+#logo{
+    width: 10%;
+}
+
+body{
+    font-family: 'Sora', sans-serif;
+    background-color: #212529;
+    color: white;
+}