[CodeFactor] Apply fixes

Author: code-factor

css/styles.css

@@ -17,7 +17,7 @@ h1 {
 * Header
 */
 header {
-  padding: 20px 0 0 0;
+  padding: 20px 0 0;
   background: white;
   text-align: center;
   display: flex;
@@ -38,7 +38,7 @@ header .submenu #img-cart {
 }
 
 /** cart **/
-#cart {box-shadow: 0px 1px 5px 0px #adadad;}
+#cart {box-shadow: 0 1px 5px 0 #adadad;}
 #cart table {border-collapse: collapse;}
 #cart table thead tr {background: #f4f4f4;}
 #cart table thead th {
@@ -118,7 +118,7 @@ header .submenu:hover #cart::-webkit-scrollbar-thumb:hover {background: #555;}
 #courses-list h1 {
   text-align: left;
   width: fit-content;
-  margin: 0 auto 25px auto;
+  margin: 0 auto 25px;
   font-size: 30px;
   font-weight: 100;
   padding: 8px 15px;
@@ -157,7 +157,7 @@ header .submenu:hover #cart::-webkit-scrollbar-thumb:hover {background: #555;}
 
   display: flex;
   flex-direction: column;
-  padding: 0 0 10px 0;
+  padding: 0 0 10px;
 }
 
 .course__item .course_img {
@@ -178,14 +178,14 @@ header .submenu:hover #cart::-webkit-scrollbar-thumb:hover {background: #555;}
   overflow: hidden;
 }
 .course__item .mark img {width: 100%;}
-.course__item .mark.m_5 img {margin-top: 0px;}
+.course__item .mark.m_5 img {margin-top: 0;}
 .course__item .mark.m_4 img {margin-top: -15px;}
 .course__item .mark.m_3 img {margin-top: -30px;}
 .course__item .mark.m_2 img {margin-top: -45px;}
 .course__item .mark.m_1 img {margin-top: -60px;}
 
 .course__item .info__card {
-  padding: 10px 10px;
+  padding: 10px;
   position: relative;
 }
 .course__item .info__card h4 {
@@ -248,7 +248,7 @@ header .submenu:hover #cart::-webkit-scrollbar-thumb:hover {background: #555;}
 }
 
 #notification_container .content {
-  box-shadow: 0px 1px 5px 0px #adadad;
+  box-shadow: 0 1px 5px 0 #adadad;
   background: #b2dbff;
   padding: 8px;
   border-radius: 4px;
@@ -257,7 +257,7 @@ header .submenu:hover #cart::-webkit-scrollbar-thumb:hover {background: #555;}
   display: flex;
   align-items: center;
 
-  margin: 0 0 15px 0;
+  margin: 0 0 15px;
 }
 
 #notification_container .content img {