/*aspectos generales: bordes y color de fondo de calculadora*/ 
.calculadora { border: 3px blue ridge; width: 250px;text-align: center;
               background-color: #f6f8d8; }

/*pantalla de visualización: bordes, posición, color de fondo, estilo letra.*/ 					 
#textoPantalla { width: 185px; border: 2px black solid; text-align: right; 
                 position: relative; left: 23px;  padding: 0px 5px;
                 background-color: white; font-family: "courier new"; 
                 overflow: hidden;}

/*botones normales: anchura y margen*/ 
.calculadora [type=button] { width: 35px; padding: 0;  }
/*botones especiales*/ 
.calculadora input.largo { color: red; width: 60px; }

ul {
    list-style-type: none;
    margin: 0;
    padding: 0;
    overflow: hidden;
    background-color: #333;
}

li {
    float: left;
}

li a {
    display: block;
    color: white;
    text-align: center;
    padding: 14px 16px;
    text-decoration: none;
}

/* Change the link color to #111 (black) on hover */
li a:hover {
    background-color: #111;
}
#myInput {
    background-image: url('/css/searchicon.png'); /* Add a search icon to input */
    background-position: 10px 12px; /* Position the search icon */
    background-repeat: no-repeat; /* Do not repeat the icon image */
    width: 100%; /* Full-width */
    font-size: 16px; /* Increase font-size */
    padding: 12px 20px 12px 40px; /* Add some padding */
    border: 1px solid #ddd; /* Add a grey border */
    margin-bottom: 12px; /* Add some space below the input */
}

#myUL {
    /* Remove default list styling */
    list-style-type: none;
    padding: 0;
    margin: 0;
}

#myUL li a {
    border: 1px solid #ddd; /* Add a border to all links */
    margin-top: -1px; /* Prevent double borders */
    background-color: #f6f6f6; /* Grey background color */
    padding: 12px; /* Add some padding */
    text-decoration: none; /* Remove default text underline */
    font-size: 18px; /* Increase the font-size */
    color: black; /* Add a black text color */
    display: block; /* Make it into a block element to fill the whole list */
}

#myUL li a:hover:not(.header) {
    background-color: #eee; /* Add a hover effect to all links, except for headers */
}
form {
                width:500px;
                margin:50px auto;
}
.search {
                padding:8px 15px;
                background:rgba(50, 50, 50, 0.2);
                border:0px solid #dbdbdb;
}
.button {
                position:relative;
                padding:6px 15px;
                left:-8px;
                border:2px solid #207cca;
                background-color:#207cca;
                color:#fafafa;
}
.button:hover  {
                background-color:#fafafa;
                color:#207cca;
}