style.css

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  list-style: none;
  text-decoration: none;
  font-family: Arial, Helvetica, sans-serif;
}
/* nav-start  */

nav {
  display: flex;
  justify-content: space-around;
  height: 80px;
  background: #00c6a9;
  font-size: 1.5rem;
  font-weight: 500;
  color: #fff;
}
nav img {
  width: auto;
  height: 100%;
}
nav ul {
  display: flex;
  justify-content: center;
  align-items: center;
}
nav ul li {
  margin: 0 20px;
  transition: 0.4s;
  padding: 10px 20px;
}
nav ul li:hover {
  background-color: #1e978b;
}

/* nav-end  */

/* sec1-start  */
.sec1 {
  display: flex;
  flex-wrap: wrap;
  box-shadow: 0px 15px 15px 0px rgba(0, 0, 0, 0.12);
  -webkit-box-shadow: 0px 15px 15px 0px rgba(0, 0, 0, 0.12);
  -moz-box-shadow: 0px 15px 15px 0px rgba(0, 0, 0, 0.12);
}
.sec1 .left,
.right {
  flex: 1 1 500px;
}
.sec1 .left {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}
.sec1 .left p {
  width: 60%;
  color: rgba(0, 0, 0, 0.489);
}
.sec1 .left h1 {
  font-size: 3rem;
}
.sec1 .left h1.h {
  font-size: 3rem;
  color: #00c6a9;
}
.sec1 .right {
  text-align: center;
}
.sec1 .left a {
  padding: 10px 20px;
  border-radius: 10px;
  background: #000;
  color: #fff;
}
/* sec1-end  */

/* sec-2 start  */
.sec2 {
  width: 80%;
  margin: auto;
  box-shadow: 0px 0px 18px 5px rgba(0, 0, 0, 0.12);
  -webkit-box-shadow: 0px 0px 18px 5px rgba(0, 0, 0, 0.12);
  -moz-box-shadow: 0px 0px 18px 5px rgba(0, 0, 0, 0.12);
  padding: 20px;
}
.sec2 .b,
.a {
  font-size: 2rem;
  font-weight: 700;
  float: left;
  margin: 0 5px;
}
.sec2 .b {
  text-decoration: underline;
  margin: 0 0 0 20px;
}
.sec2 .a {
  color: #00c6a9;
}
.sec2 .input {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-evenly;
}
.inputs {
  display: flex;
  flex-direction: column;
  flex: 1;
}
.inputs input {
  margin: 20px 20px;
  border: none;
  background: #fff;
  border: 1px solid #00c6a9;
  padding: 20px 50px;
  border-radius: 10px;
}
.inputs input::placeholder {
  font-size: 1.2rem;
  font-weight: bold;
  color: #03030357;
}
.sec2 button {
  padding: 10px 25px;
  background: #000;
  color: #fff;
  border-radius: 5px;
  margin: 0 0 0 20px;
  font-size: 1.3rem;
  font-weight: 600;
}
/* sec-2 end  */
/* sec3 start  */
.sec3 {
  display: flex;
  flex-wrap: wrap;
}
.sec3 img {
  margin-left: 50px;
}
.sec3 .left {
  width: 80%;
  height: 80%;
}
.sec3 .left,
.right {
  flex: 1 1 500px;
}
.sec3 .right {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}
.sec3 .right h1 {
  float: left;
  font-size: 2rem;
}
.right .h {
  color: #00c6a9;
}
.sec3 p {
  width: 60%;
  color: #0000009e;
}
.sec3 a {
  padding: 15px 30px;
  background: #000;
  color: #fff;
  border-radius: 3px;
}
/* sec3 end  */
/* sec4 start  */
.sec4 {
  padding: 50px;
}
.sec4 .div {
  display: flex;
  flex-wrap: wrap;
}
.sec4 .div1,
.div2,
.div3,
.div4 {
  flex: 1 1 200px;
  margin: 0 50px;
  font-size: 1.3rem;
}
.sec4 .div p {
  color: #00000090;
}
.sec4 .div a {
  color: #00c6a9;
}
/* sec4 end  */
/* sec5 start  */
.sec5{
  width: 100%;
  margin: auto;
  background:#00c6a9;
}
.sec5 .doc{
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
}
.sec5 h1{
  text-align: center;
  font-size: 2rem;
}
.doctors{
  flex: 1 1 400px;
  margin: 20px;
  text-align: center;
}
.doctors h2{
  font-size: 1.5rem;
}
.doctors i{
  font-size: 2rem;
  color: #d0fff8;
  margin: 10px 10px;
}
.doctors img{
  width:100%;
  height:400px;
  object-fit: cover;
}


/* sec 5 end  */
/* sec6 start  */
.sec6{
  display: flex;
  flex-wrap: wrap;
}
.sec6 h1{
  font-size: 2rem;
}
.sec6 .left{
  text-align: center;
}
.sec6 .left,.right{
  flex: 1 1 500px;
}
.sec6 .left input,textarea{
  display:block;
  margin: auto;
  margin-top: 20px;
  padding: 20px 60px;
  border: 1px solid #00c6a9;
}
.sec6 .left input::placeholder,textarea::placeholder{
  color: #00c6a9;
  font-size: 1rem;
}
.sec6 button{
  border:none;
  background:#00c6a9;
  font-size: 1.5rem;
  padding: 15px 30px;
  color: white;
  margin: 20px 0;
}
.sec6 .right{
  text-align: center;
}
/* sec6 end  */
/* footer start  */
footer{
  display: flex;
  flex-wrap: wrap;
  justify-content: space-around;
  color: #fff;
  background: #000;
  padding-top: 30px;
}
.fot1 h1{
  margin: 20px;
}
.fot h1::before{
  content: "X";
  background-color:#00c6a9;
  color: #00c6a9;
}
.fot{
  flex: 1 1 300px;
  text-align: center;
}
.fot li{
  font-size: 1.2rem;
  margin: 10px;
}

/* mediaquerymediaquerymediaquerymediaquerymediaquerymediaquerymediaquerymediaquerymediaquerymediaquerymediaquerymediaquerymediaquerymediaquerymediaquerymediaquerymediaquerymediaquerymediaquerymediaquerymediaquerymediaquerymediaquerymediaquerymediaquerymediaquerymediaquerymediaquerymediaquerymediaquerymediaquerymediaquerymediaquerymediaquerymediaquerymediaquerymediaquerymediaquerymediaquerymediaquerymediaquerymediaquerymediaquerymediaquerymediaquerymediaquerymediaquerymediaquery */
@media (max-width: 767px) {
  nav ul {
    display: none;
  }
  .sec1 .right img {
    width: 100%;
    margin: 10px;
  }
  .sec2 .b,
  .a {
    font-size: 1rem;
  }
  .sec3 img{
    width: 100%;
    margin: 20px;
  }
  .sec4{
    text-align: center;
  }
  .sec4 .div1,.div2,.div3,.div4{
    margin: 20px 0;
  }
  .sec6 img{
    width: 100%;
  }
}
@media (max-width:1200px) and (min-width:767px) {
    nav ul li{
        margin: 0;
        font-size: 1.3rem;
    }
}