diff --git a/normalize.css b/normalize.css
index 192eb9ce4..b2aa0487f 100644
--- a/normalize.css
+++ b/normalize.css
@@ -9,8 +9,10 @@
  */
 
 html {
-  line-height: 1.15; /* 1 */
-  -webkit-text-size-adjust: 100%; /* 2 */
+    line-height: 1.15;
+    /* 1 */
+    -webkit-text-size-adjust: 100%;
+    /* 2 */
 }
 
 /* Sections
@@ -21,7 +23,7 @@ html {
  */
 
 body {
-  margin: 0;
+    margin: 0;
 }
 
 /**
@@ -29,7 +31,7 @@ body {
  */
 
 main {
-  display: block;
+    display: block;
 }
 
 /**
@@ -38,8 +40,8 @@ main {
  */
 
 h1 {
-  font-size: 2em;
-  margin: 0.67em 0;
+    font-size: 2em;
+    margin: 0.67em 0;
 }
 
 /* Grouping content
@@ -51,9 +53,12 @@ h1 {
  */
 
 hr {
-  box-sizing: content-box; /* 1 */
-  height: 0; /* 1 */
-  overflow: visible; /* 2 */
+    box-sizing: content-box;
+    /* 1 */
+    height: 0;
+    /* 1 */
+    overflow: visible;
+    /* 2 */
 }
 
 /**
@@ -62,8 +67,10 @@ hr {
  */
 
 pre {
-  font-family: monospace, monospace; /* 1 */
-  font-size: 1em; /* 2 */
+    font-family: monospace, monospace;
+    /* 1 */
+    font-size: 1em;
+    /* 2 */
 }
 
 /* Text-level semantics
@@ -74,7 +81,7 @@ pre {
  */
 
 a {
-  background-color: transparent;
+    background-color: transparent;
 }
 
 /**
@@ -83,9 +90,12 @@ a {
  */
 
 abbr[title] {
-  border-bottom: none; /* 1 */
-  text-decoration: underline; /* 2 */
-  text-decoration: underline dotted; /* 2 */
+    border-bottom: none;
+    /* 1 */
+    text-decoration: underline;
+    /* 2 */
+    text-decoration: underline dotted;
+    /* 2 */
 }
 
 /**
@@ -94,7 +104,7 @@ abbr[title] {
 
 b,
 strong {
-  font-weight: bolder;
+    font-weight: bolder;
 }
 
 /**
@@ -105,8 +115,10 @@ strong {
 code,
 kbd,
 samp {
-  font-family: monospace, monospace; /* 1 */
-  font-size: 1em; /* 2 */
+    font-family: monospace, monospace;
+    /* 1 */
+    font-size: 1em;
+    /* 2 */
 }
 
 /**
@@ -114,7 +126,7 @@ samp {
  */
 
 small {
-  font-size: 80%;
+    font-size: 80%;
 }
 
 /**
@@ -124,18 +136,18 @@ small {
 
 sub,
 sup {
-  font-size: 75%;
-  line-height: 0;
-  position: relative;
-  vertical-align: baseline;
+    font-size: 75%;
+    line-height: 0;
+    position: relative;
+    vertical-align: baseline;
 }
 
 sub {
-  bottom: -0.25em;
+    bottom: -0.25em;
 }
 
 sup {
-  top: -0.5em;
+    top: -0.5em;
 }
 
 /* Embedded content
@@ -146,7 +158,7 @@ sup {
  */
 
 img {
-  border-style: none;
+    border-style: none;
 }
 
 /* Forms
@@ -162,10 +174,21 @@ input,
 optgroup,
 select,
 textarea {
-  font-family: inherit; /* 1 */
-  font-size: 100%; /* 1 */
-  line-height: 1.15; /* 1 */
-  margin: 0; /* 2 */
+    font-family: inherit;
+    /* 1 */
+    font-size: 100%;
+    /* 1 */
+    line-height: 1.15;
+    /* 1 */
+    margin: 0;
+    /* 2 */
+}
+
+::placeholder {
+    /* Add the correct opacity in Safari */
+    opacity: 1;
+    /* Add the correct line-height in Safari with 1.15 lines height above */
+    line-height: normal;
 }
 
 /**
@@ -174,8 +197,9 @@ textarea {
  */
 
 button,
-input { /* 1 */
-  overflow: visible;
+input {
+    /* 1 */
+    overflow: visible;
 }
 
 /**
@@ -184,8 +208,9 @@ input { /* 1 */
  */
 
 button,
-select { /* 1 */
-  text-transform: none;
+select {
+    /* 1 */
+    text-transform: none;
 }
 
 /**
@@ -196,7 +221,7 @@ button,
 [type="button"],
 [type="reset"],
 [type="submit"] {
-  -webkit-appearance: button;
+    -webkit-appearance: button;
 }
 
 /**
@@ -207,8 +232,8 @@ button::-moz-focus-inner,
 [type="button"]::-moz-focus-inner,
 [type="reset"]::-moz-focus-inner,
 [type="submit"]::-moz-focus-inner {
-  border-style: none;
-  padding: 0;
+    border-style: none;
+    padding: 0;
 }
 
 /**
@@ -219,7 +244,7 @@ button:-moz-focusring,
 [type="button"]:-moz-focusring,
 [type="reset"]:-moz-focusring,
 [type="submit"]:-moz-focusring {
-  outline: 1px dotted ButtonText;
+    outline: 1px dotted ButtonText;
 }
 
 /**
@@ -227,7 +252,7 @@ button:-moz-focusring,
  */
 
 fieldset {
-  padding: 0.35em 0.75em 0.625em;
+    padding: 0.35em 0.75em 0.625em;
 }
 
 /**
@@ -238,12 +263,18 @@ fieldset {
  */
 
 legend {
-  box-sizing: border-box; /* 1 */
-  color: inherit; /* 2 */
-  display: table; /* 1 */
-  max-width: 100%; /* 1 */
-  padding: 0; /* 3 */
-  white-space: normal; /* 1 */
+    box-sizing: border-box;
+    /* 1 */
+    color: inherit;
+    /* 2 */
+    display: table;
+    /* 1 */
+    max-width: 100%;
+    /* 1 */
+    padding: 0;
+    /* 3 */
+    white-space: normal;
+    /* 1 */
 }
 
 /**
@@ -251,7 +282,7 @@ legend {
  */
 
 progress {
-  vertical-align: baseline;
+    vertical-align: baseline;
 }
 
 /**
@@ -259,7 +290,7 @@ progress {
  */
 
 textarea {
-  overflow: auto;
+    overflow: auto;
 }
 
 /**
@@ -269,8 +300,10 @@ textarea {
 
 [type="checkbox"],
 [type="radio"] {
-  box-sizing: border-box; /* 1 */
-  padding: 0; /* 2 */
+    box-sizing: border-box;
+    /* 1 */
+    padding: 0;
+    /* 2 */
 }
 
 /**
@@ -279,7 +312,7 @@ textarea {
 
 [type="number"]::-webkit-inner-spin-button,
 [type="number"]::-webkit-outer-spin-button {
-  height: auto;
+    height: auto;
 }
 
 /**
@@ -288,8 +321,10 @@ textarea {
  */
 
 [type="search"] {
-  -webkit-appearance: textfield; /* 1 */
-  outline-offset: -2px; /* 2 */
+    -webkit-appearance: textfield;
+    /* 1 */
+    outline-offset: -2px;
+    /* 2 */
 }
 
 /**
@@ -297,7 +332,7 @@ textarea {
  */
 
 [type="search"]::-webkit-search-decoration {
-  -webkit-appearance: none;
+    -webkit-appearance: none;
 }
 
 /**
@@ -306,8 +341,10 @@ textarea {
  */
 
 ::-webkit-file-upload-button {
-  -webkit-appearance: button; /* 1 */
-  font: inherit; /* 2 */
+    -webkit-appearance: button;
+    /* 1 */
+    font: inherit;
+    /* 2 */
 }
 
 /* Interactive
@@ -318,7 +355,7 @@ textarea {
  */
 
 details {
-  display: block;
+    display: block;
 }
 
 /*
@@ -326,7 +363,7 @@ details {
  */
 
 summary {
-  display: list-item;
+    display: list-item;
 }
 
 /* Misc
@@ -337,7 +374,7 @@ summary {
  */
 
 template {
-  display: none;
+    display: none;
 }
 
 /**
@@ -345,5 +382,5 @@ template {
  */
 
 [hidden] {
-  display: none;
-}
+    display: none;
+}
\ No newline at end of file