style1.css

 @import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@100&display=swap');

* {
	box-sizing: border-box;
	margin: 0px;
	padding: 0px;
	font-family: sans-serif;
}
li,a,button {
	font-family: "Montserrat",sans-serif;
	font-weight: 500;
	color: #0f2453;
	text-decoration:none ;
}
header {
	display: flex;
	justify-content: flex-end;
	align-items: center;
	padding: 30px 10%;
	background: #0f2453;
	width: 100%;
	position: fixed;
	top: 0;
	/* margin: 20px; */
	
}
body{
	margin: 0px;
    background-size: cover;
    margin-bottom: 200px;
}
.logo{
	cursor: pointer;
	margin-right: auto;
	font-size: 25px;
	color:#ffce14 ;
}
.nav_links {
	list-style: none;
}
.nav_links li{
	display: inline;
	padding: 0px 20px;
}
.nav_links li a{
	transition: all 250ms ease-in;
	color: white;
}
.nav_links li a:hover{
	background: #ffce14;
	height: 20px;
    color: black;
}
button{
	padding: 9px 25px;
	background-color: rgba(0, 136,169,1);
	border: none;
	border-radius: 50px;
	cursor: pointer;
	transition: 0.3s ease 0s;
}
button:hover{
    background-color:#ffce14;
}
div.gradient {
    position: relative;
    left: 15%;
    width: 70%;
    height: 10%;
   
}

div.gradient .text {
    padding-top: 100px;
    padding-bottom: 20px;
    margin-bottom: 40px;
    text-align: center;
}
.text{
    margin-top: 80px;
    color: #0f2453;
}
div.gradient .text h2 {
    text-align: center;
    font-family: Cambria, Cochin, Georgia, Times, 'Times New Roman', serif;
}

div.account {
    position: relative;
    left: 30%;
    right: 10%;
    width: 40%; 
    color: #0f2453;
    margin-top: 20px;
    border: 5px #0f2453 solid;
    border-radius: 10px;
}

div.account form.signup { 
    padding: 30px;
}

 div.account form.signup input {
    font-weight: bolder;
    width: 95%;
    height: 20px;
    padding: 5px;
    margin: 10px;
    border: #bfd3cb 1px solid;
    border-radius: 4px;
}

div.account form.signup .displays {
    display: inline;
}
div.account div.displays div.buttons {
    float: right;
    overflow: hidden;
    margin-top: 10px 0;
}

div.account div.displays div.buttons button{
    padding: 5px;
    border: #bfd3cb 1px solid;
    color: #0f2453;
    background-color: transparent;
    font-weight: bolder;
    border-radius: 2px;
}

div.account div.displays div.buttons button:hover {
    color: #bfd3cb;
    background-color:  #0f2453;
}

div.account form.signup .account-exist{
    padding: 10px;
    margin: 0;
}

div.account form.signup .account-exist h4,a{
    margin: 0;
}
.account-exist h4 a {
    text-decoration: none;
    color: #4169e1;
}
.account-exist h4 a:hover {
    text-decoration: underline;
} 
form {
    font-size: 20px;
}
#fname{
    height: 35px;
    border-radius: 30px;
    width: 100%;
    padding: 12px;
    border: 1px solid #ccc;
    margin-top: 6px;
    margin-bottom: 16px;
    resize: vertical;
}

/* Media Queries */

@media all and (min-width: 400px) and (max-width: 800px){

    div.account div.displays div.buttons {
        /* display: inline-block; */
        /* position: relative; */
        right: 0px;
        margin: 5px 10px;
        padding: 10px;
        /* border: #0f2453 1px solid; */
    }
    div.account div.displays div.buttons button{
        margin: 3px;
        width: 100%;
    }
    
    div.account form.signup .account-exist{
        padding: 10px;
        margin: 10px;
        width: fit-content;
        /* border: #0f2453 1px solid; */
        position: relative;
        bottom: 0px;
        overflow: hidden;
    }
    div.account form.signup .account-exist h4,a{
        margin: 5px;
    }
}