app.css

#html {
    overflow: auto;
}

html {
    scroll-behavior: smooth;
}
/*                                               */

::-webkit-scrollbar-track {
    -webkit-box-shadow: inset 0 0 6px rgba(0,0,0,0.3);
    border-radius: 10px;
    background-color: #F5F5F5;
}

::-webkit-scrollbar {
    width: 12px;
    background-color: #F5F5F5;
}

::-webkit-scrollbar-thumb {
    border-radius: 10px;
    -webkit-box-shadow: inset 0 0 6px rgba(0,0,0,.3);
    background-color: orange;
}

::-webkit-scrollbar-thumb:hover {
    background-color: #ff7500;
}

/*                                               */
/* width */
/*
::-webkit-scrollbar {
    width: 10px;
}


::-webkit-scrollbar-track {
    box-shadow: inset 0 0 5px #f1f1f1;
    border-radius: 4px;
}


::-webkit-scrollbar-thumb {
    background: orange;
    border-radius: 4px;
}


::-webkit-scrollbar-thumb:hover {
    background: orangered;
}*/

.sub1 {
    position: relative;
    background-attachment: fixed;
    background-image: url("background.jpg");
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
    min-height: 100%;
    width: 100.95%;
    margin-left: -10px;
    margin-top: -40px;
}

.mainPar {
    padding-top: 20px;
    text-align: center;
    font-size: 35px;
    color: white;
    font-family: "Berlin Sans FB";
}

.initial {
    font-size: 45px;
    color: orange;
    font-family: "Berlin Sans FB";
}

.titleRes {
    font-size: 40px;
    font-weight: bold;
    color: orange;
    font-family: "Berlin Sans FB";
}

#mynetwork {
    width:100%;
    height: 790px;
    background-color: rgba(255, 255, 255, 0.2);
}

#output {
    display: none;
    position: relative;
    background-attachment: fixed;
    background-image: url("background4.jpg");
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
    min-height: 100%;
    width: 99.9%;
    margin-left: -10px;
    padding-top: 20px;
    padding-bottom: 20px;
    padding-left: 20px;
    background-color: rgba(150, 150, 150, 0.35);
}

#answer {
    display: none;
    background-color: white;
    font-size: 60px;
    text-align: center;
    color: #00B7FF;
    font-family: "Berlin Sans FB";
}

table {
    font-family: "Berlin Sans FB";
    color: white;
}

table.legend_table {
    font-family: "Berlin Sans FB";
    font-size: 11px;
    color: white;
}
table.legend_table,td {
    padding: 2px;
}
div.table_content {
    width:80px;
    text-align:center;
}
div.table_description {
    width:100px;
}

#node-operation {
    font-family: "Berlin Sans FB";
    color: white;
}

#edge-operation {
    font-family: "Berlin Sans FB";
    color: white;
}

#operation {
    font-family: "Berlin Sans FB";
    font-size:28px;
}

#node-popUp {
    display:none;
    visibility: visible;
    position:absolute;
    top:40%;
    left:40%;
    z-index:299;
    width:250px;
    height:120px;
    background-color: rgba(0, 0, 0, 0.4);
    border-style:solid;
    border-width:3px;
    border-color: #00B7FF;
    padding:10px;
    text-align: center;
    -webkit-transition-duration: 0.2s; /* Safari */
    transition-duration: 1s;
    transition: visibility 0s, opacity 0.5s linear;
}

#node-label {
    font-family: "Berlin Sans FB";
}

#edge-popUp {
    display:none;
    position:absolute;
    top:40%;
    left:40%;
    z-index:299;
    width:250px;
    height:120px;
    background-color: rgba(0, 0, 0, 0.4);
    border-style:solid;
    border-width:3px;
    border-color: #00B7FF;
    padding:10px;
    text-align: center;
    -webkit-transition-duration: 0.2s; /* Safari */
    transition-duration: 0.3s;
}

.numForPaths {
    font-family: "Berlin Sans FB";
    font-size: 20px;
}

.eachForGain {
    font-family: "Berlin Sans FB";
    font-size: 20px;
    padding-left: 50px;
}

.eachForGainAgain {
    font-family: "Berlin Sans FB";
    font-size: 20px;
    padding-left: 70px;
}

.right {
    transform: rotate(-45deg);
    -webkit-transform: rotate(-45deg);
}

i {
    border: solid black;
    border-width: 0 5px 5px 0;
    display: inline-block;
    padding: 5px;
}

hr{
    height: 3px;
    color: #00B7FF;
    background-color: #00B7FF;
    border: none;
    display: none;
}

.number {
    color: green;
    font-size: 30px;
    padding-left: 10px;
}

.space {
    padding-right: 10px;
}

.toolbar {
    display: flex;
    align-content: center;
    overflow: hidden;
    text-align: center;
    margin-top: 50px;
    justify-content: center;
}

.moveToTop {
    font-family: "Berlin Sans FB";
    position: fixed;
    display: none;
    bottom: 20px;
    right: 30px;
    z-index: 2000;
    background-color: #00B7FF;
    border: none;
    color: white;
    padding: 5px 10px;
    text-align: center;
    text-decoration: none;
    font-size: 15px;
    -webkit-transition-duration: 0.2s; /* Safari */
    transition-duration: 0.2s;
    cursor: pointer;
    border: 2px solid #00B7FF;
    border-radius: 10%;
}

.moveToTop:hover {
    background-color: #03ddff;
    border: 2px solid #03ddff;
    border-radius: 10%;
    color: white;
}

.moveToTop:active {
    background-color: #00ffd2;
    border: 2px solid #00ffd2;
    border-radius: 10%;
    color: white;
}

.button-evaluate {
    font-family: "Berlin Sans FB";
    position: relative;
    background-color: #00B7FF;
    border: none;
    color: white;
    padding: 10px 20px;
    text-align: center;
    text-decoration: none;
    display: inline-block;
    font-size: 18px;
    margin-top: 10px;
    margin-left: 10px;
    margin-right: 10px;
    margin-bottom: 50px;
    -webkit-transition-duration: 0.2s; /* Safari */
    transition-duration: 0.2s;
    cursor: pointer;
    border: 2px solid #00B7FF;
    border-radius: 5px;
}

.button-evaluate:hover {
    background-color: #03ddff;
    border: 2px solid #03ddff;
    border-radius: 10%;
    color: white;
}

.button-evaluate:active {
    background-color: #00ffd2;
    border: 2px solid #00ffd2;
    border-radius: 10%;
    color: white;
}

.button-evaluate:focus {
    outline: 0;
    box-shadow: none;
}


.button-reset {
    font-family: "Berlin Sans FB";
    position: relative;
    background-color: rgba(255, 255, 255, 0.1);
    border: none;
    color: white;
    padding: 10px 20px;
    text-align: center;
    text-decoration: none;
    display: inline-block;
    font-size: 18px;
    margin-top: 10px;
    margin-left: 10px;
    margin-right: 10px;
    margin-bottom: 20px;
    -webkit-transition-duration: 0.2s; /* Safari */
    transition-duration: 0.2s;
    cursor: pointer;
    border: 2px solid #00B7FF;
    border-radius: 5px;
}

.button-reset:hover {
    background-color: #00B7FF;
    border: 2px solid #00B7FF;
    border-radius: 10%;
    color: white;
}

.button-reset:active {
    background-color: #05e1ff;
    border: 2px solid #05e1ff;
    border-radius: 10%;
    color: white;
}

.button-reset:focus {
    outline: 0;
    box-shadow: none;
}


.button {
    font-family: "Berlin Sans FB";
    position: relative;
    background-color: rgba(255, 255, 255, 0.1);
    border: none;
    color: white;
    padding: 10px 20px;
    text-align: center;
    text-decoration: none;
    display: inline-block;
    font-size: 18px;
    margin: 10px 10px;
    -webkit-transition-duration: 0.2s; /* Safari */
    transition-duration: 0.2s;
    cursor: pointer;
    border: 2px solid #00B7FF;
    border-radius: 5px;
}

.button:hover {
    background-color: #00B7FF;
    border: 2px solid #00B7FF;
    border-radius: 10%;
    color: white;
}

.button:active {
    background-color: #05e1ff;
    border: 2px solid #05e1ff;
    border-radius: 10%;
    color: white;
}

.button:focus {
    outline: 0;
    box-shadow: none;
}

.container {
    cursor: pointer;
    position: fixed;
    display: block;
    top: 30px;
    right: 30px;
    z-index: 2000;
    -webkit-transition-duration: 0.35s; /* Safari */
    transition-duration: 0.35s;
}

.bar1, .bar2, .bar3 {
    width: 26px;
    height: 3px;
    background-color: white;
    margin: 4px 0;
    transition: 0.4s;
    border-radius: 10%;
}

.change .bar1 {
    -webkit-transform: rotate(-45deg) translate(-3px, 2px);
    transform: rotate(-45deg) translate(-3px, 2px);
    background-color: orange;
}

.change .bar2 {opacity: 0;}

.change .bar3 {
    -webkit-transform: rotate(45deg) translate(-8px, -8px);
    transform: rotate(45deg) translate(-8px, -8px);
    background-color: orange;
}

.menuBtn {
    /*background-color: #2B3C58;*/
    position: relative;
    width: 300px;
    height: auto;
    margin: 0 auto;
    display: table-cell;
    vertical-align: middle;
}

.menuBtn li {
    list-style: none;
    font-family: "Bauhaus 93";
    font-size: 20px;
    padding: 15px;
    -webkit-transition-duration: 0.2s; /* Safari */
    transition-duration: 0.2s;
    text-align: center;
}

.menuBtn li:hover {
    list-style: none;
    font-size: 20px;
    padding: 15px;
    color: black;
    border-left: 3px solid orange;
    cursor: pointer;
}

.sideBar {
    padding-top: 10px;
    background-color: white;
    display: table;
    right: -300px;
    position: fixed;
    z-index: 1000;
    height: 101%;
    width: 300px;
    -webkit-transition-duration: 0.35s; /* Safari */
    transition-duration: 0.35s;
}

.sideBarHow {
    padding-top: 10px;
    background-color: white;
    display: table;
    right: -1000px;
    position: fixed;
    z-index: 1000;
    height: 101%;
    width: 1000px;
    -webkit-transition-duration: 0.35s; /* Safari */
    transition-duration: 0.35s;
}

.inst {
    vertical-align: middle;
    display: table-cell;
}

.instructions {
    padding: 10px;
    font-family: "Berlin Sans FB";
    font-size: 25px;
    color: black;
}

.sideBarAbout {
    padding-top: 10px;
    background-color: white;
    display: table;
    right: -1000px;
    position: fixed;
    z-index: 1000;
    height: 101%;
    width: 1000px;
    -webkit-transition-duration: 0.35s; /* Safari */
    transition-duration: 0.35s;
}

.description {
    padding: 10px;
    font-family: "Berlin Sans FB";
    font-size: 25px;
    color: black;
    text-align: center;
}

.names {
    font-family: "Berlin Sans FB";
    font-size: 20px;
    color: black;
    text-align: center;
    padding-left: 30px;
}

.gmail {
    font-family: "Berlin Sans FB";
    font-size: 25px;
    color: orange;
    text-align: center;
}

.homeBtn {
    color: black;
    border-left: 3px solid orange;
}

.homeBtn:hover {
    color: black !important;
    border-left: 3px solid orange !important;
    cursor: pointer !important;
}

.howBtn {
    color: grey;
}

.howBtn:hover {
    color: black !important;
    border-left: 3px solid orange !important;
    cursor: pointer !important;
}

.aboutBtn {
    margin-top: 100px;
    color: grey;
}

.aboutBtn:hover {
    color: black !important;
    border-left: 3px solid orange !important;
    cursor: pointer !important;
}

.toggleBar {
    font-family: "Berlin Sans FB";
    position: fixed;
    display: block;
    top: 20px;
    right: 30px;
    z-index: 99;
    background-color: #00B7FF;
    border: none;
    color: white;
    padding: 5px 10px;
    text-align: center;
    text-decoration: none;
    font-size: 15px;
    -webkit-transition-duration: 0.35s; /* Safari */
    transition-duration: 0.35s;
    cursor: pointer;
    border: 2px solid #00B7FF;
    border-radius: 10%;
}

.toggleBar:hover {
    background-color: #03ddff;
    border: 2px solid #03ddff;
    border-radius: 10%;
    color: white;
}

.toggleBar:active {
    background-color: #00ffd2;
    border: 2px solid #00ffd2;
    border-radius: 10%;
    color: white;
}

.allContent {
    position: relative;
    right: 0px;
    -webkit-transition-duration: 0.35s; /* Safari */
    transition-duration: 0.35s;
}

.solution {
    font-family: "Berlin Sans FB";
    font-size: 20px;
    color: black;
    padding-left: 20px;
}

.solutionLbl {
    font-weight: bold;
    color: green;
    font-size: 25px;
    padding-right: 20px;
}

.equation {
    padding: 40px;
    text-align: center;
    font-size: 50px;
    font-family: "Berlin Sans FB";
    color: black;
}

.equationLbl {
    font-size: 60px;
    color: green;
    font-weight: bold;
}

.sigma {
    font-size: 70px;
    font-weight: bold;
}

.delta {
    font-size: 50px;
    font-weight: bold;
}

.equation2 {
    padding-left: 20px;
    font-size: 30px;
    font-family: "Berlin Sans FB";
    color: black;
}

.equationLbl2 {
    font-size: 40px;
    color: green;
    font-weight: bold;
    padding-right: 20px;
}