diff --git a/src/main/webapp/WEB-INF/view/admin/system/index.jsp b/src/main/webapp/WEB-INF/view/admin/system/index.jsp
index 62628a8be3f99aa2018b0e9ab717cd7b2f0089a9..4738e80558cc0ce2b0195c25d97dcd97c6143bed 100644
--- a/src/main/webapp/WEB-INF/view/admin/system/index.jsp
+++ b/src/main/webapp/WEB-INF/view/admin/system/index.jsp
@@ -14,7 +14,7 @@
 		</jsp:include>
 
 		<div id="content" class="content-wrapper">
-			<iframe id="contentFrame" src="<%=request.getContextPath()%>/admin/server/_plugin/kopf/" width="100%" height="400" seamless></iframe>
+			<iframe id="contentFrame" src="<%=request.getContextPath()%>/admin/server/_plugin/kopf/" seamless></iframe>
 		</div>
 
 		<jsp:include page="/WEB-INF/view/common/admin/footer.jsp"></jsp:include>
diff --git a/src/main/webapp/css/admin/style.css b/src/main/webapp/css/admin/style.css
index 1300f77c450f8a3e9ab815a792d8125e2e70afc4..f9ae252075b9b2e9de4e9ea6ba50a81a2fe3148a 100644
--- a/src/main/webapp/css/admin/style.css
+++ b/src/main/webapp/css/admin/style.css
@@ -14,6 +14,11 @@
 	font-size: 13px;
 }
 
-button > i {
+button>i {
 	margin-right: 0.2em;
+}
+
+.content-wrapper iframe {
+	border: 0;
+	width: 100%;
 }
\ No newline at end of file