make circle control items more general

public/static/css/mapguesser.css

@@ -443,6 +443,43 @@ div.box {
     box-sizing: border-box;
 }
 
+.circleControl {
+    position: absolute;
+    width: 60px;
+    bottom: 20px;
+    right: 10px;
+}
+
+.circleControl .controlItem {
+    height: 60px;
+    margin-top: 10px;
+    opacity: 70%;
+    cursor: pointer;
+}
+
+.circleControl .controlItem:hover {
+    opacity: 100%;
+}
+
+.circleControl .controlItem div {
+    position: absolute;
+}
+
+.circleControl .controlBackground {
+    width: 100%;
+    height: 100%;
+    opacity: 50%;
+}
+
+.circleControl .controlIcon {
+    width: 75%;
+    height: 75%;
+    margin: auto;
+    margin-top: 50%;
+    transform: translateY(-50%);
+    -ms-transform: translateY(-50%);
+}
+
 @media screen and (max-width: 599px) {
     header h1 span {
         display: none;
@@ -469,6 +506,12 @@ div.box {
     div.box {
         width: initial;
     }
+    .circleControl {
+        width: 45px;
+    }
+    .circleControl .controlItem {
+        height: 45px;
+    }
 }
 
 @media screen and (min-width: 600px) {
@@ -498,6 +541,12 @@ div.box {
         padding-top: 10px;
         padding-bottom: 10px;
     }
+    .circleControl {
+        width: 45px;
+    }
+    .circleControl .controlItem {
+        height: 45px;
+    }
 }
 
 @media screen and (min-height: 400px) and (max-height: 499px) {