styles.css

td {
	padding-left: 20px;
	padding-right: 20px;
}

tr {
	height: 40px;
}

th {
	background-color: white;
    color: grey;
    /* z-index: 200; */
    background: linear-gradient(white 90%, lightgrey, lightgrey 8%);
}

body {
	display: grid;
    grid-template-columns: 200px 1fr;
    grid-template-rows: 1000px 1fr;
    margin-bottom: 0;
    position: absolute;
    height: 100%;
    width: 100%;
    margin: 0;
    font-family: sans-serif;
    background-color: #F0F0F0;
}

.navbar {
	background-color: #293a46;
}
.navbar-text {
	color: white;
	transition: .3s all;
}
.navbar-text:hover {
	color: #576E7F;
}
.navbar-content > .selected {
	background-color: white;
	display: flex;
}
.navbar-content > .selected > a > p {
	color: black;
}
.navbar-content > div > a {
	text-decoration: none;
}
.navbar-content > div > a > p {
	margin: 0;
	padding-left: 30px;
	padding-top: 10px;
	padding-bottom: 10px;
}

.arrow-left {
	position: absolute;
    width: 0;
    height: 0;
    border-top: 20px solid transparent;
    border-bottom: 20px solid transparent;
    border-left: 14px solid white;
    margin-left: 199px;
}

.selected {
	background-color: white;
	color: #293a46;
	transition: .35s all;
}

.main {
	padding-top: 0px;
}
table, td {
	background-color: white;
	border: 1px solid #e4e4e4;
}

table {
    width: 100%;
    border-collapse: collapse;
}

h4 {
    background: linear-gradient(#293A47, #519687);
	padding: 17px;
    margin: 0;
    color: white;
}

.content {
	padding: 20px;
	background-color: #F0F0F0;;
}

form {
	/*padding: 20px;*/
}

form > .activity > .container {
	padding: 10px;
	border: 0.01em solid grey;
}

.sub-header {
	color: white;
	background-color: grey;
	padding-left: 20px;
	font-weight: bold;
	margin-bottom: 0;
}

form > .activity > .container > input[type="text"],input[type="date"] {
	/*background-color: lightgrey;*/
    /* background-color: white; */
    height: 30px;
    font-family: sans-serif;
}

form > .activity > .container > input[type="text"] {
	width: 75%;
}
form > .activity > .container > input[type="date"] {
	width: 20%;
}
form > .activity > .container > input[type="submit"] {
	background: #293a46;
	color: white;
	border-style: outset;
	border-color: #293a46;
	height: 40px;
	width: 98%;
	font: bold 15px arial, sans-serif;
	text-shadow:none;
	margin-top: 10px;
	transition: all .35s;
}
form > .activity > .container > input[type="submit"]:hover {
	background: #172a38;
	border-color: #172a38;
	color: white;
}

.activity {
	border: 1px solid lightgrey;
	margin: 0;
}
.activity > p {
    border-top-right-radius: 3px;
    border-top-left-radius: 3px;
    margin: 0;
    height: 39px;
    line-height: 39px;
}

.navbar-header {
	text-align: center;
	width: 100%;
	color: white;
	font-weight: bold;
	/*letter-spacing: 3px;*/
	font-size: 18px;
	margin-top: 15px;
	margin-bottom: 15px;
}

/*https://www.w3schools.com/howto/howto_js_dropdown.asp*/
/* Dropdown Button */
.dropbtn {
    background-color: #4CAF50;
    color: white;
    padding: 10px;
    font-size: 16px;
    border: none;
    cursor: pointer;
}

/* Dropdown button on hover & focus */
.dropbtn:hover, .dropbtn:focus {
    background-color: #3e8e41;
}

/* The container <div> - needed to position the dropdown content */
.dropdown {
    position: relative;
    display: inline-block;
}

/* Dropdown Content (Hidden by Default) */
.dropdown-content {
    display: none;
    position: absolute;
    background-color: #f9f9f9;
    min-width: 110px;
    box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2);
    z-index: 1;
}

/* Links inside the dropdown */
.dropdown-content a {
    color: black;
    /*padding: 12px 16px;*/
    padding: 10px;
    text-decoration: none;
    display: block;
    text-align: left;
}

/* Change color of dropdown links on hover */
.dropdown-content a:hover {background-color: #f1f1f1}

/* Show the dropdown menu (use JS to add this class to the .dropdown-content container when the user clicks on the dropdown button) */
.show {display:block;}
/*body  > * {
  border: 1px dashed red;
}*/

.edit {
	background-color: green;
	padding: 5px 20px 5px 20px;
	color: white;
	border-radius: 5px;
	transition: .35s all;
}
.save {
	background-color: blue;
	padding: 5px 16px 5px 16px;
	color: white;
	border-radius: 5px;
	transition: .35s all;
}