DevTools: tweak performance landing page style.

third_party/WebKit/Source/devtools/front_end/timeline/timelinePanel.css

Index: third_party/WebKit/Source/devtools/front_end/timeline/timelinePanel.css
diff --git a/third_party/WebKit/Source/devtools/front_end/timeline/timelinePanel.css b/third_party/WebKit/Source/devtools/front_end/timeline/timelinePanel.css
index 9c44d210200cc9a7bd56a2c004b6cb8a3b795f29..64855e5cb7836eff22ab1cf83ae4a9a3dfa7f37f 100644
--- a/third_party/WebKit/Source/devtools/front_end/timeline/timelinePanel.css
+++ b/third_party/WebKit/Source/devtools/front_end/timeline/timelinePanel.css
@@ -654,11 +654,13 @@
     align-items: center;
     overflow: auto;
     font-size: 13px;
+    line-height: 15px;
     color: #777;
 }
 
 .timeline-landing-page > div {
-    width: 430px;
+    max-width: 430px;
+    margin: 10px;
 }
 
 .timeline-landing-page > div > p {
@@ -666,12 +668,11 @@
 }
 
 .timeline-landing-warning {
-    border: 1px solid #fdd835;
     background-color: #fffde7;
-    padding: 5px;
+    padding: 10px 14px;
+    box-shadow: 1px 1px 3px rgba(0,0,0,0.2);
 }
 
 .timeline-landing-warning span[is=ui-icon] {
-    position: relative;
-    top:7px;
+    margin: -8px;
 }