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HTML

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CSS

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CSS preprocessors help make authoring CSS easier. All of them offer things like variables and mixins to provide convenient abstractions.

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CSS Base

About CSS Base

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JavaScript

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Babel includes JSX processing.

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HTML 

              
                <html>
<body>
<p>Įvesti du skaičius</p>
<button oncontextmenu="skaiciai()">Spausti dešinį klavišą</button>
<p></p>
<p>PI skaičius padalintas iš A skaičiaus</p>
<button onclick="pidalyba()">Spausti mygtuką</button>
<p></p>
<p>What is the Answer to the Ultimate Question of Life, the Universe, and Everything </p>
<button onmouseover="klausimas()">Užvesti ant mygtuko</button>
<p></p>
<p>Jūsų klausimas</p>
<button ondblclick="question()">Du kartus spausti</button>
<p></p>
<p>Jūsų klausimas</p>
<button onmouseout="question()">Užvesti ir patraukti pelę</button>
<p id="demo"></p>
<p id="demo2"></p>

</body>
</html>
!

CSS
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JS 

              
                function dalyba(a,b){
 return a / b;
 }

function pidalyba(){
var skA = prompt("Prašome įvesti skaičių A", "8");
var pi = Math.PI; 
  if (skA > null) {
 document.getElementById("demo").innerHTML =
        "Jūsų skaičius: " + skA + " Atsakymas: " + dalyba (skA,pi) ;
}
}

function skaiciai() {
    let ats = prompt("Prašome įvesti savo skaičių", "8");
    let ats2 = prompt("Prašome įvesti savo skaičių", "3");
    if (ats && ats2 != null) {
        document.getElementById("demo").innerHTML =
        "Jūsų skaičius: " + ats + " Antras skaičius: " + ats2 ;
     document.getElementById("demo2").innerHTML =
      "Jūsų atsakymas sudauginus šiuos du skaičius yra: " + dalyba(ats, ats2);
    }
}


function klausimas() {
    var answer = prompt("Enter you answer", "");
    if (answer == 42) 
        alert("Atsakymas teisingas 42");
        else alert("NETEISINGAI");
    
}


function question()
{
   if (confirm("Ar šiandien testas"))
  alert("Taip, teisingai šiandien Testas");
    else alert("Meluojate");
}
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999px

Console