* {
    margin: 0;
    padding: 0;
}
html, body {
    background-image: linear-gradient(to right, #78d873 , #7fd87a);
    overflow: hidden;
}

 .header {
    display: flex;
    width: 600px;
} 

.img1 {
    max-width: 100%;
    margin-top: 12px;
}

.img3{
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0px;
    left: 140px;   
}
.button{
    padding: 1;
    margin: 0;
    position: absolute;
    top: 590px;
    left: 700px;
    width: 300px;
    height: 68px;
    align-items: center;
    border: none;
    border-radius: 5px;
    transition-duration: 0.60s;
    background-color: transparent;
    background: url(../img/iniciar-botão.png);
    cursor: pointer;
    background-size: 300px;
    outline:none;
    z-index: 1;

}
.button:hover{
    transform: scale(0.75);
}