.flex-box{
display: flex;
flex-direction: row;
align-items: center;
}
.flex-box-first{
margin-right:80px;
}
.main-btn {
padding: 16px;
display: inline-block;
margin-right: 20px;
border-radius: 10px;
text-decoration: none;
color: #fff;
}
.main-btn-try {
background-color:#4eb5df;
transition: .4s;
}
.main-btn-try:hover {
background-color:#2d718d;
}
.main-btn-demo {
background-color:#44c74c;
transition: .4s;
}
.main-btn-demo:hover {
background-color:#318b37;
}
.header-row{
display:flex;
flex-direction: row;
justify-content: space-between;
margin-bottom:60px;
}

@media only screen and (max-width: 900px) {
.flex-box{
flex-direction: column;
}
.flex-box-first{
margin-right:0;
}
.main-btn {
width:200px;
}
.main-btn-try {
margin-top: 30px;
margin-bottom: 20px;
}
.main-btn-demo {
margin-bottom: 30px;
}
.header-row{
flex-direction:column;
margin-bottom:30px;
}
.header-row a{
padding: 16px 40px 16px 45px !important;
margin-top: 20px !important;
}
}