Searhc: small updates on look & feel

Based on my feedback from #496

src/search.css

@@ -17,7 +17,7 @@
   width: 100%;
   height: 100%;
   z-index: 3000;
-  line-height: 1.875;
+  line-height: 1;
 }
 
 :host > div a {
@@ -61,16 +61,15 @@
   right: 0;
   bottom: 0;
   z-index: 100000;
-  height: 60%;
+  height: 80%;
   width: 60%;
-  max-height: 1000px;
-  max-width: 1500px;
+  max-width: 700px;
   overflow-y: hidden;
   display: flex;
   flex-direction: column;
   border: 1px solid var(--readthedocs-search-content-border-color, #e0e0e0);
   border-radius: 0.7rem;
-  line-height: 1.875;
+  line-height: 1.75;
   background-color: var(--readthedocs-search-content-background-color, #fcfcfc);
   box-shadow:
     rgba(0, 0, 0, 0.05) 5px 5px 5px 5px,
@@ -80,9 +79,9 @@
 
 :host > div form {
   background-color: var(--readthedocs-search-input-background-color, #eaeaea);
-  margin: 1.2rem;
+  margin: 0.5rem;
   border-radius: 0.25em;
-  font-size: 1.15em;
+  font-size: 1.05em;
   padding: 5px;
   display: flex;
 }
@@ -94,7 +93,7 @@
 
 :host > div form > label {
   font-size: 1.15em;
-  padding-left: 10px;
+  padding-left: 5px;
   color: #333;
 }
 
@@ -118,24 +117,17 @@
 
 :host > div .results {
   margin-top: 10px;
-  padding: 1.15em;
+  padding: 0.5em;
   overflow-y: scroll;
   height: 100%;
   hyphens: auto;
 }
 
 div.hit-block {
-  padding: 10px;
-  border-radius: 0.3rem;
-  border-style: solid;
-  border-width: 1px;
-  border-color: var(--readthedocs-search-result-section-border-color, #a0a0a0);
-  margin-bottom: 5px;
-
+  padding-top: 3px;
+  border-top: 1px solid rgb(224, 224, 224);
   display: flex;
   flex-direction: column;
-
-  box-shadow: 2px 2px 8px 0 rgba(34, 36, 38, 0.08);
 }
 
 div.hit-block a.hit-block-heading {
@@ -154,8 +146,8 @@ div.hit-block .hit-block-heading-container .close-icon {
   font-size: 1.15em;
   width: 1em;
   padding-right: 10px;
-  margin-bottom: 15px;
-  color: #333;
+  color: #999;
+  padding-top: 5px;
 }
 
 button.close-icon {
@@ -199,12 +191,10 @@ div.hit-block .hit-block-heading-container svg {
 :host > div .results h2 {
   display: inline-block;
   font-weight: 700;
-  margin-bottom: 15px;
-  margin-top: 0;
-  font-size: 1.15em;
+  margin-top: 3px;
+  margin-bottom: 5px;
+  font-size: 1em;
   color: black;
-  border-bottom: 1px solid
-    var(--readthedocs-search-result-section-border-color, #a0a0a0);
   line-height: inherit;
 }
 
@@ -218,7 +208,7 @@ div.hit-block .hit-block-heading-container svg {
 }
 
 :host > div .results .hit .subheading {
-  color: var(--readthedocs-search-result-section-subheading-color, #999);
+  color: var(--readthedocs-search-result-section-subheading-color, #888);
   font-weight: 700;
   font-size: 15px;
   margin-right: 10px;
@@ -230,7 +220,7 @@ div.hit-block .hit-block-heading-container svg {
 :host > div .results .hit .content {
   margin: 0;
   text-decoration: none;
-  color: black;
+  color: #999;
   font-size: 15px;
   display: block;
   margin-bottom: 5px;
@@ -269,11 +259,13 @@ div.hit-block .hit-block-heading-container svg {
 :host > div .credits {
   float: right;
   margin: 0 15px;
+  font-size: small;
+  padding-top: 3px;
 }
 
 :host > div .credits a img {
   display: inline-block;
-  width: 125px;
+  width: 100px;
   vertical-align: middle;
 }
 
@@ -297,7 +289,7 @@ div.hit-block .hit-block-heading-container svg {
 :host > div .filters {
   position: relative;
   padding-top: 0.9rem;
-  margin: 0 1.15em;
+  margin: 0 0.5em;
 }
 
 :host > div .filters ul {
@@ -308,6 +300,7 @@ div.hit-block .hit-block-heading-container svg {
   border-style: solid;
   border-width: 1px;
   border-color: var(--readthedocs-search-filters-border-color, #e0e0e0);
+  border-bottom: 1px solid #e0e0e0;
 }
 
 :host > div .filters li {