Cant vertically center text inside div

November 16, 2022

I just can’t vertically center this text inside my div (red background), I’ve tried everything but nothing is working, please help! I can’t even get my text inside the div whithout using margins/padding for some reason.
I’ve tried using div, span, p and h1 for the text but nothing worked =(

THIS IS MY CODE:

        <div class="headerdiv">
            <div class="backtotop">
                <a class="material-symbols-outlined" href="#" >arrow_upward</a>
                <a class="backtotoptext" href="#">Voltar ao topo</a>
              </div>
        <div class="githubcontainer">
            <a href="https://github.com/maruan-achkar/javascript_exercicios" target="_blank" class="githublink" >//GITHUB LINK</a>
        </div>
        <div class="dropdown">
            <div class="dropdown-title-container">
            <p class="dropdown-title">MENU</p>
            </div>
            <div class="dropdown-content">
              <a class="dropdowna" href="#trocarvariaveis">// Trocar Variaveis<br></a>
              <a class="dropdowna" href="#celsiusparafarenheit">// Celsius para Farenheit<br></a>
              <a class="dropdowna" href="#farenheitparacelsius">// Farenheit para Celsius<br></a>
              <a class="dropdowna" href="#areacirculo">// Area Circulo<br></a>
              <a class="dropdowna" href="#parouimpar">// Par ou Impar<br></a>
              <a class="dropdowna" href="#intervalo">// Intervalo entre numeros<br></a>
              <a class="dropdowna" href="#intervalovetor">// Intervalo entre maior e menor de vetor<br></a>
              <a class="dropdowna" href="#maiormenor">// Maior e menor numero<br></a>
              <a class="dropdowna" href="#paisagemouretrato">// Paisagem ou retrato<br></a>  
              <a class="dropdowna" href="#fizzbuzz">// Fizz ou Buzz<br></a>
              <a class="dropdowna" href="#stringobject">// String do objeto<br></a>
              <a class="dropdowna" href="#parimparlimite">// Par ou impar ate limite<br></a>
            </div>
          </div>
        </div>
    </header>

--------------------------------------------CSS--------------------------------------------

.dropdown {
    float: left;
    background-color: #F6F7EB;
    height: 100%;
    width: 100px;
  }
  .dropdown-title-container{
    background-color: #DC3318;
    height: 100%;
    display: flex;
    justify-content: center;
  }
  .dropdown-title{
    font-family: Arial;
    font-weight: bolder;
    font-size: 1.75em;
    line-height: 100%;
  }
  .dropdown-content {
    display: none;
    position: absolute;
    top: 48px;
    background-color: #F6F7EB;
    padding-right: 15px;
    outline: solid black 3px;
    box-shadow: 0px 10px 15px black;
    border-radius: 0.1vw;
    font-size: 0.8em;
  }
  
  .dropdown:hover .dropdown-content {
    display: block;
  }
  .dropdowna{
    color: black;
    font-size: 1.75em;
    margin-left: 2vw;
    text-decoration: none;
  }```.sticky{
    position: fixed;
    top: 0;
    width: 100%;
    height: 45px;
    background-color: #DC3318;
    box-shadow: 0px 0px 5px rgb(0, 0, 0, 0.65);
}
.headerdiv{
    background-color: greenyellow;
    height: 100%;
    width: 100%;
}
.backtotop{
    font-weight: bolder;
    font-size: 0.75em;
    margin-right: 0;
    height: 100%;
    width: 160px;
    float: right;
    display: flex;
    align-items: center;
}
.backtotoptext{
    margin: auto;
    text-decoration: none;
    color: black;
    font-size: 1.55em;
    margin-right: 12px;
}
.material-symbols-outlined{
    text-decoration: none;
    margin-right: -30px;
    margin-bottom: 3px;
    color: black;
}
.backtotop:hover .backtotoptext{
    color: rgb(0, 132, 255);
}
.backtotop:hover .material-symbols-outlined{
    color: rgb(0, 132, 255);
}
.githubcontainer{
    width: 200px;
    height: 100%;
    float: right;
    margin-right: 40px;
    display: flex;
    align-items: center;
}
.githublink{
    color: black;
    margin: auto;
    font-size: 1.35em;
    text-decoration: none;
}
.githublink:hover{
    text-decoration: underline;
}