styles.css

*{
    margin:0;
    padding:0;
    font-family: Arial, Helvetica, sans-serif;
}

header{
    background-image: linear-gradient(rgba(0, 0, 0, 0.8), rgba(0, 0, 0, 0.4)), url(fitness-background.webp);
    background-size: cover;
    width: 100%;
    height: 120vh;
}

.logo{
    width: 7%;
    padding: 10px;
    background: none;
}

nav{
    display: flex;
    flex-direction: row;
}

nav ul{
    display: flex;
    flex-direction: row;
    justify-content: space-around;
    background: none;
}

nav ul li{
    list-style: none;
    padding: 30px 20px;
    background: none;
}

nav ul li a{
    background: #2DC307;
    color: white;
    text-decoration: none;
    padding: 5px 20px ;
    font-size: 1,1em;
    border-radius: 13px;
}

nav ul li a:hover{
    background: #239E04;
    transition: 0.6s ease ;
}


h2{
    color:white;
    background: none;
}

div h2.first{
    float:left;
    top:40%;
    left: 25%;
    transform: translate(-50%,-50%);
    position: absolute;
    background: none;
    font-size: 6em;
}


div h2.second{
    float:left;
    top:52%;
    left: 20%;
    transform: translate(-50%,-50%);
    position: absolute;
    background: none;
    font-size: 5.2em;
}

div h3{
    float:left;
    top:59%;
    left: 18%;
    color:#2DC407 ;
    transform: translate(-50%,-50%);
    position: absolute;
    background: none;
    font-size: 1.8em;
}

div input{
    float:left;
    top:7%;
    left: 85%;
    transform: translate(-50%,-50%);
    position: absolute;
    background: white;
    border-style: none;
    outline: none;
    border-radius: 25px;
}

input {
    padding: 20px  40px;
    font-style: 1.1em;
    color: #000;
    width: 15%;
    transition: 0.25s;
}

input:focus{
    width: 20%;
    background-color: aliceblue;
}

button{
    font-size: 1.6em;
    padding: 10px 3px;
    border-radius: 50px;
    cursor: pointer;
}

div button.firstbutton{
    float:left;
    top:70%;
    left: 17%;
    transform: translate(-50%,-50%);
    position: absolute;
    background: #2DC407;
    border-style: none;
    outline: none;
    width: 17%;
    transition: 0.25s;
}

div button.firstbutton:focus{
    width: 19%;
    background: #239E04;
}

div button.secondbutton{
    float:left;
    top:70%;
    left: 32%;
    transform: translate(-50%,-50%);
    position: absolute;
    background: #2DC407;
    border-style: none;
    outline: none;
    width: 9%;
    transition: 0.25s;
}

div button.secondbutton:focus{
    width: 11%;
    background: #239E04;
}

section{
    background: rgb(212, 221, 228);
    margin: auto;
    padding: 0;
}

p{
    font-size: 1.2em;
    background: rgb(212, 221, 228);
    padding: 50px 150px;
}

section h2{
    color: #4298D0;
    font-size: 3em;
    padding-bottom: 50px;
    border-bottom:3px solid #4398D0 ;
    text-align: center;
    align-items: center;
}

iframe{
    padding: 30px 40px;
    width: 360px;
    height: 215px;
}


section h4{
    width: 100%;
    font-size: 2em;
    color: white;
    padding: 60px 20px;
    box-sizing: border-box;
    background: #4298D0;
}

button.last{
    font-size: 1em;
    color: white;
    padding: 10px 15px;
    background: #041825;
    border-style: none;
    outline: none;
    border-radius: 10px;
    align-items: center;
    text-align: center;
    float: left;
    top: 23%;
    left: 70%;
    transform: translate(-50%,-50%);
    position: relative;
}

.lastsection{
    background: #041826;
}

.lastsection .block{
    padding-left: 10px;
    padding-bottom: 30px;
}

.block{
    display: inline-flex;
    flex-direction: row;
    justify-content: center;
    align-items: center;
    width: 27%;
}

section.lastsection .block p{
    color: #A4AFB1;
    font-size: 1em;
    background: #041825;
    text-align: justify;
    align-items: center;
    padding: 50px;
}

footer{
    font-family: Arial, Helvetica, sans-serif;
    display: flex;
    flex-direction: row;
    justify-content: flex-end;
    text-align: center;
    padding: 0 0;
    margin: 0 0;
    background: #212432;
    color: white;
    font-size: 0.8em;
    padding: 50px 0;
    line-height: 45px;
}

footer ul{
    list-style: none;
}

.footer1 , .footer2 , .footer3{
    padding: 0 60px;
    text-align: justify;
    color: #B10C0C2;
}