style.css

@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@200;300;400&display=swap');

* {
margin: 0;
padding: 0;
border: 0;
box-sizing: border-box;
font-family: "Poppins", sans-serif;
}

body {
background-color: #3d5a80;
display: flex;
min-height: 100vh;
flex-direction: row;
justify-content: center;
align-items: center;
}

main .bloco{
position: relative;
width: 930px;
height: 680px;
background-color: white;
border-radius: 30px;
flex-direction: column;
justify-content: center;
}

main .bloco img {
height: 600px;
margin-left: 41px;
margin-top: 34px;
float:left;
}

h1{
color: #ed5631;
padding-left: 50%;
padding-top: 1.5em;
margin-left: 35px;
font-weight: 500;
}

main .redes-sociais img {
position: absolute;
height: 35px;
padding-left: 14.5em;
margin-left: 6em;
}

main .redes-sociais a:first-child img {
margin-left: 0;
}

main .alternative span{
color: #ed5631;
display: inline-block;
margin-left: 9.5em;
margin-top: 6em;
}

main .alternative span::before, main .alternative span::after {
content: '';
height: 1px;
width: 115px;
background-color: tomato;
float: left;
margin: 11px;
}

main .alternative span::after {
left: 50px;
float: right;
}

main form {
display: flex;
flex-direction: column;
align-items: center;
}

main form label {
display: flex;
flex-direction: column;
}

main form input {
background-color: #464646;
height: 50px;
width: 300px;
border-radius: 30px;
margin-top: 2px;
outline: none;
color:white;
font-size: 1.1em;
padding: 0px 20px;
}

input:-webkit-autofill, select:-webkit-autofill {
-webkit-text-fill-color: rgb(255, 255, 255);
-webkit-box-shadow: 0 0 0px 1000px #464646 inset;
} /*resolve o problema da mudança de cor quando prenche automaticamente*/

main form span{
color: #ed5631;
padding-left: 20px;
margin-top: 25px;
font-size: 1.1em;
}

main form #button {
background-color: #ed5631;
width: 25%;
margin-top: 45px;
cursor: pointer;
font-size: 1.1em;
transition: all 0.3s;
}

main form #button:hover{
background-color: #E13D14;
}

main .circle img{
position: fixed;
height: 800px;
margin-top: -398px;
left: -225px;
z-index: -1;
}