pressure-calc-style.css

table th {
    font-size: 16px;
    border: 1px solid black;

}

table td  {
    border: 1px solid black;
}



/* this is for button styling */

.dropbtn {
    background-color: #3498DB;
    color: white;
    padding: 16px;
    font-size: 16px;
    border: none;
    cursor: pointer;
}

/* this is for button change color */
.dropbtn:hover, .dropbtn:focus {
    background-color: #2980B9;
}

/* this is to show position of the dropdown, but why a whole class above button itself */

.dropdown {
    position: relative;
    display: inline-block;
}

.dropdown-content {
    display: none;
    position: absolute;
    background-color: #f1f1f1;
    min-width: 160px;
    overflow: auto;
    box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2);
    z-index: 1;
}

/* styling lettering of dropdown content */

.dropdown-content a {
    color: red;
    padding: 12px 16px;
    text-decoration: none;
    display: block;
}


/* this is for change color when hover mouse */

.dropdown a:hover {background-color: #ddd}

/* ??? */

.show {display:block;}